JP2011133487A - Multiple hazard protection articles and method for manufacturing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide articles that are ones with fabrics and film layers and that can protect multiple hazards including radiation, chemicals, biologic agents, metal frying objects, and fire. <P>SOLUTION: Articles, including fabrics and film layers, are disclosed which can protect against multiple hazards, including radiation, chemical, biological agents, metal projectiles and fire hazards. The fabrics and films are used to manufacture garments having protection against multiple hazards and superior heat dissipating properties. A radiation protective compound is preferably created by mixing a radio opaque material, such as barium, bismuth, tungsten or their compounds, with powdered polymer, pelletized polymer or a liquid solution, emulsion or suspension of a polymer in solvent or water. The radiation protective mixture can then be laminated or otherwise bonded to other types of protective films or fabrics, such as the protective polymer films or fabrics used for chemical protective garments, biological protective garments, bullet proof vests or fire retardant garments. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

(Related application)
This application is a pending application of application 10 / 238,160 dated 9/9/2002, entitled "Lightweight Radiation Protective Articles And Methods For Making Them". It is a partial continuation application of application 09 / 940,681 entitled “Lightweight Radiation Protective Garments” filed on August 27 and issued as US Pat. No. 6,459,091 on October 1, 2002. In addition, this application was filed on Dec. 7, 1998 and published as U.S. Patent No. 6,281,515 on Aug. 28, 2001, "Lightweight Radiation Protection Protect". It was a continuation-in-part of application 09 / 206,671, entitled “Ive Garments”.

(Technical field)
The present invention relates to articles comprising fabrics, compounds, and film layers, and to articles that can provide protection against life-threatening dangers such as radiation, chemicals, biological agents, metal flying objects and flames. In some embodiments, the fabrics and films of the present invention are used to produce garments with multiple hazard protection and superior heat dissipation properties.

(Background technology)
There are many types of dangers today that can cause even serious injury or death. These hazards include radiation, corrosive or toxic chemicals, infectious biological agents, metal flying objects such as bullets and explosive fragments, and flames. Many of these dangers have been known for some time, but in light of recent terrorist activities, including the September 11, 2001 terrorist attack on the World Trade Center, protection against them has become more urgent and difficult. It has become.

  Many of the dangers faced today have been considered limited to locations such as nuclear power plants, nuclear fuel processing plants, nuclear waste processing facilities, X-ray scanners, chemical production facilities and biological laboratories. However, the expansion of terrorism has spread these dangers almost everywhere. In the case of radiation, lethal radiation can spread throughout metropolitan areas due to the explosion of portable nuclear bombs, such as “dirty bombs” that incorporate nuclear waste materials. Similarly, the release of infectious bioagents can no longer be confined to biological research facilities and can occur anywhere a terrorist has chosen to release such infectious bioagents.

  In addition to the need for protection against life-threatening hazards over a very large area, simultaneous protection against multiple types of hazards is also required. For example, with regard to nuclear power plant nuclear hazards, it can be readily understood that the emergence of terrorists means the possibility of releasing lethal biological or chemical agents into the same nuclear power plant. Similarly, when attempting to protect against lethal biological agent releases in biological research facilities, the explosion of “dirty bombs” by such terrorists near such research facilities can pose a serious danger of radiation. For these reasons, it is no longer possible to provide effective protection just by considering the most anticipated types of hazards.

  Today, there is a need for a method for providing effective and economical protection against multiple types of hazards. In the past, for example, clothing was made to provide protection against certain threats. In the case of radiation, there have been many attempts in the past to mitigate the harmful effects of radiation through the production of radiopaque protective clothing. Typically, these radiopaque garments are constructed of a hard material such as rubber and are impregnated with lead and some other heavy metals that can block radiation. Examples of radiopaque protective clothing impregnated with lead include Holland U.S. Pat. No. 3,052,799, Whittaker U.S. Pat. No. 3,883,749, Leguillon U.S. Pat. No. 3,045. 121, Via US Pat. No. 3,569,713, and Still US Pat. No. 5,038,047. In other cases, radiopaque materials are combined with the polymer film, such as Shah US Pat. No. 5,245,195 and Lagace US Pat. No. 6,153,666.

  There are also clothes designed to deal with the specific threat of flying metal, such as bullets and explosive fragments. For example, Borgese US Pat. No. 4,989,266 and Stone US Pat. No. 5,331,683 disclose two types of bulletproof vests.

  In addition, fabrics have been developed to provide resistance to corrosive or toxic chemicals. An example of such a chemical protective cloth can be found by searching the Internet. Such chemical protective fabrics include polyethylene fabrics such as DuPont's Tyvek®, Kibelly-Clark's Kleenguard® and Kappler's Proshield®, DuPont ’s Based on plastic laminated fabrics such as TyChem (R) and Kimberly Clark's HazardGard (R), and microporous films such as DuPont's NexGen (R) and Kappler's Proshield 2 (R) There is cloth. These chemical protective fabrics usually also provide protection against biological agents.

  Although these prior art fabrics, compounds and garments provide protection against the specific threats they are designed to deal with, they suffer from a number of drawbacks. For example, prior art garments made of lead provide good protection against the harmful effects of radiation, but these prior art garments are often heavy, stiff, expensive and bulky. It is. As such, these garments are often uncomfortable, bothersome, and restrained. Also, of course, lead is a toxic substance that must be handled very carefully and cannot be disposed of easily. Furthermore, prior art radiation protection garments are usually bulky, expensive and toxic and cannot be thrown away with each use, thus presenting disinfection and decontamination problems.

  Similarly, prior art bulletproof vests and explosion-proof suits tend to have undesirable heat dissipation characteristics. These bulletproof vests and explosion-proof suits can become uncomfortable at high temperatures to the extent that the user gives up protection while avoiding the risk of overheating with heat. Furthermore, this poor heat dissipation has further drawbacks in military use. When a soldier's body heat sometimes accumulates inside a bulletproof vest or explosion-proof suit, the soldier creates a so-called "heat trail" of high temperature in other areas of the body that can release heat. Will have. This uneven "heat trail" makes it easy for the soldier to be located by an enemy thermal imaging device. For survival in the high-tech battlefield, it is preferable for soldiers to release heat quickly from the entire body to make the "heat trace" uniform.

  In addition, it is often possible that a garment designed to be effective against one hazard will not be effective against the other hazard. For example, prior art radiation protective clothing would probably not be effective in bullet blockage. Conversely, prior art bulletproof vests and explosion-proof suits would not be effective in shielding radiation.

(Disclosure of the Invention)
The present invention is directed to an article comprising a fabric and a film layer capable of protection against multiple hazards including radiation, chemicals, biological agents, metal flying objects and fire hazards. In some embodiments, the fabrics and films of the present invention are used in the manufacture of garments with multiple hazard protection and excellent heat dissipation properties. In other embodiments, the protective fabric or film may be a poncho, protective tent, nuclear material detection probe, wallpaper, house siding, roofing material, house foundation composite, or commercial aircraft cabin, It can be used to manufacture airport scanners, food irradiation devices or X-ray room lining materials. Furthermore, the materials of the present invention can be incorporated into paints or coatings and applied to a wide variety of surfaces.

  The radioprotective compound preferably mixes a radioprotective material such as barium, bismuth, tungsten or these compounds with a powdered polymer, a pelleted polymer, or a solution, emulsion or suspension of the polymer in a solvent or water. Is generated by The polymer can be conveniently selected from a wide range of plastics including, but not limited to polyurethane, polyamide, polyvinyl chloride, polyvinyl alcohol, natural latex, polyethylene, polypropylene, ethylene vinyl acetate and polyester. This radiation protective polymer mixture is then preferably combined into one or more layers of fabric.

  As a result, other types of danger protection can be combined with protection against radiation. For example, the radiopaque polymeric compound can be laminated to one or more commercially available fabrics that provide protection against harmful chemicals, biological agents, metal flying objects or flames. These commercially available fabrics include polyethylene fabrics such as DuPont's Tyvek (R), polypropylene fabrics such as Kibelyard (R) and Kappler's Proshield (R), DuPont's TyChem (R) ), Plastic laminated fabrics such as HazardGard I (registered trademark) from Kimberly Clark, fine pore film fabrics such as DuPont's NexGen (registered trademark) and Kappler Proshield 2 (registered trademark), and Saratog from Blucher GmbH There are carbon ball composite fabrics such as (trademark) and aramid fabrics such as Kevlar (registered trademark) and Nomex (registered trademark) of DuPont.

  Alternatively, a film that can provide protection against harmful chemicals, biological agents, flames or metal flying objects can be laminated to the radiation protection fabric or film of the present invention or otherwise applied. it can. This additional film can be from various polymeric materials such as polyethylene, polypropylene, polyurethane, neoprene, polytetrafluoroethylene (Teflon®), Kapton®, Mylar®, or combinations thereof. Can be formed.

  If heat, moisture, or heat traces of soldiers are a problem, heat dissipating compounds such as copper, silver, aluminum, gold, beryllium, tungsten, magnesium, calcium, carbon, molybdenum, and / or zinc can be applied to one or more fabrics. It can be added to the radiation protective polymer mixture prior to application to the formation. Alternatively, a heat dissipating polymer layer can be uniquely produced and affixed to a radiation protective cloth.

  The radiation protection cloth can be incorporated into a bulletproof vest or explosion-proof suit, alone or in combination with other layers (eg, chemical protection, heat dissipation). Typically, bulletproof vests and explosion-proof suits are composed of aramid and / or polyethylene fabric layers that are sewn together. In order to add radiation protection to such bulletproof vests or explosion-proof suits, a radiation protective fabric layer can be sewn between or laminated to the aramid and / or polyethylene fiber layer. it can. Protection against chemicals and biological agents can also be imparted by sewing or laminating chemical protective films on aramid and / or polyethylene bulletproof fabrics.

Using similar principles, known flame retardant fabrics such as Nomex (R) or Kevlar (R), which are aramid fabrics manufactured by DuPont, are applied to the bulletproof, radiation protective, chemical resistant, biological resistant of the present invention. The fabric and / or heat dissipation fabric layers can be combined by stitching or lamination to produce garments that provide protection against various types of life-threatening hazards. Such garments can be characterized as “universal” protective garments. In addition, the principles of the present invention include surgical hoods, hospital gowns, gloves, patient quilts, ponchos, partitions, covers, jumpsuits, military uniforms, work clothes, tents, packaging materials, sachets, wallpaper, lining materials, drywalls It can be applied to a wide range of other articles such as body, house siding, house foundation, radiation probe. In addition, transparent items with radiopaque properties, such as pre-impregnated shields, can be attached or incorporated into the protective garment of the present invention.
For example, the present invention provides the following.
(Item 1)
Radiation protection polymer mixture comprising more than 50% by weight radiation protection material and less than 50% by weight polymer, wherein the radiation protection material comprises tungsten and / or barium sulfate.
(Item 2)
Item 2. The polymer mixture for radiation protection according to Item 1, wherein the polymer is selected from the group consisting of ethyl vinyl acetate and polyethylene.
(Item 3)
The radiation protective polymer mixture of item 1 comprising about 85% by weight radiation protection material and about 15% by weight polymer.
(Item 4)
4. The radiation protective polymer mixture of item 3, wherein the radiation protection material is about 75% by weight tungsten, about 20% by weight barium sulfate, and about 5% by weight bismuth.
(Item 5)
Layers of fabric, and
A radiation protective composite fabric comprising a radiation protective polymer mixture adhered to or otherwise attached to the fabric,
The radiation-protecting polymer mixture includes a polymer, barium, barium sulfate, barium chloride, other barium compounds, tungsten, tungsten carbide, tungsten oxide, other tungsten compounds, bismuth, bismuth compounds, tantalum, tantalum compounds, titanium, Titanium compound, Diatrizoate Meglumine Inj. USP, Acetrizate Sodium, Boron, Boric Acid, Boron Oxide, Boron Salt, Other Boron Compounds, Beryllium, Beryllium Compound, Bunamidody Didium, Diatizodium Sodium, Ethiodoid Oil, Iobacic Acid, Iobacic Acid, Ioboid Acid , Iodoalphic Acid, o-Idohippurate Sodium, Iodophthalin Sodium, Idopyracet, Iolytic Acid, Iohexol, Iomeric Ipomoid, Iopaimoid, Iopaimoid ol, Iophendylate, Iophenoxic Acid, Iopromide, Iopronic Acid, Iopydol, Iopydone, Iothalamic Acid, Iotrolan, Ioversol, Ioxaglic Acid, Ioxilan, Ipodate, Meglumine Acetrizoate, Meglumine Ditrizoate Methiodal Sodium, Metrizamide, Metrizoic Acid, Phenobutiodil, Phentetiothalein Sodium, Propryliodone, Sodium Idomemethamate, Sozodiolic Acid, Thorium Oxide and Trypanoate S And a radiation protection material selected from the group consisting of Dium,
Radiation protection fabric.
(Item 6)
6. The radiation protection fabric according to item 5, wherein the radiation protection material contains tungsten and / or barium sulfate.
(Item 7)
7. A radiation protection fabric according to item 6, wherein the polymer mixture comprises more than 50% by weight radiation protection material and less than 50% by weight polymer.
(Item 8)
6. The radiation protective fabric according to item 5, wherein the polymer is selected from the group consisting of ethyl vinyl acetate and polyethylene.
(Item 9)
6. The radiation protection fabric according to item 5, wherein the radiation protection material is about 75% by weight tungsten, about 20% by weight barium sulfate, and about 5% by weight bismuth.
(Item 10)
6. The radiation protective fabric according to item 5, wherein the fabric layer is selected from the group consisting of a woven fabric and a non-woven fabric.
(Item 11)
Item 11. The radiation protective fabric according to Item 10, wherein the woven fabric is a woven fabric.
(Item 12)
Item 11. The radiation protective fabric according to Item 10, wherein the nonwoven fabric comprises high-speed spun polyethylene.
(Item 13)
A layer of woven fabric,
A layer of nonwoven, and
A radiation protective polymer mixture interposed between two fabric layers,
A radiation protective composite fabric comprising:
The radiation protective polymer mixture comprises greater than 50 wt% radiation protective material comprising tungsten and / or barium sulfate, and less than 50 wt% polymer;
Radiation protection fabric.
(Item 14)
14. The radiation protective fabric according to item 13, wherein the woven fabric layer is a woven fabric, and the non-woven fabric layer comprises high-speed spun polyethylene.
(Item 15)
14. A composite fabric for radiation protection according to item 13, wherein the polymer is selected from the group consisting of ethyl vinyl acetate and polyethylene.
(Item 16)
Item 16. A garment comprising the composite fabric according to item 13.
(Item 17)
Item 14. An upper and lower continuous clothing made of the composite fabric according to item 13.
(Item 18)
Item 14. A two-piece garment comprising a trouser and a jacket comprising the composite fabric according to item 13.
(Item 19)
An article capable of protecting the user against both radiation hazards and flying object penetration risks,
A polymer layer that is resistant to penetration of flying objects; and
A radiation-protective polymer mixture adhered to or otherwise attached to the anti-splash through layer;
Including
The radiation-protecting polymer mixture includes a polymer, barium, barium sulfate, barium chloride, other barium compounds, tungsten, tungsten carbide, tungsten oxide, other tungsten compounds, bismuth, bismuth compounds, tantalum, tantalum compounds, titanium, Titanium compound, Diatrizoate Meglumine Inj. USP, Acetrizate Sodium, Boron, Boric Acid, Boron Oxide, Boron Salt, Other Boron Compounds, Beryllium, Beryllium Compound, Bunamidody Didium, Diatizodium Sodium, Ethiodoid Oil, Iobacic Acid, Iobacic Acid, Ioboid Acid , Iodoalphic Acid, o-Idohippurate Sodium, Iodophthalin Sodium, Idopyracet, Iolytic Acid, Iohexol, Iomeric Ipomoid, Iopaimoid, Iopaimoid ol, Iophendylate, Iophenoxic Acid, Iopromide, Iopronic Acid, Iopydol, Iopydone, Iothalamic Acid, Iotrolan, Ioversol, Ioxaglic Acid, Ioxilan, Ipodate, Meglumine Acetrizoate, Meglumine Ditrizoate Methiodal Sodium, Metrizamide, Metrizoic Acid, Phenobutiodil, Phentetiothalein Sodium, Propryliodone, Sodium Idomemethamate, Sozodiolic Acid, Thorium Oxide and Trypanoate S And a radiation protection material selected from the group consisting of Dium,
Danger protection article.
(Item 20)
Item 20. The dangerous article according to item 19, wherein the radiation protection material contains tungsten and / or barium sulfate.
(Item 21)
20. The danger protection product according to item 19, wherein the polymer in the radiation protection polymer mixture is selected from the group consisting of ethyl vinyl acetate, polyethylene, polyurethane, polyamide, polyvinyl chloride, polyvinyl alcohol, natural latex, polypropylene and polyester. Goods.
(Item 22)
Item 20. The dangerous article according to item 19, wherein the flying object penetration layer is selected from the group consisting of an aramid fabric and a polyethylene fabric.
(Item 23)
23. The danger protection article according to item 22, wherein the flying object penetration layer includes a plurality of layers of an aramid fabric and / or a polyethylene fabric.
(Item 24)
24. A hazard protection article according to item 23, wherein at least some of the multiple layers of the aramid fabric and / or polyethylene fabric are wrapped with a thermoplastic material.
(Item 25)
Item 20. The dangerous article according to Item 19, wherein the radiation protective polymer mixture is laminated to the flying object penetration layer.
(Item 26)
Item 20. The dangerous article according to Item 19, wherein the article is a bulletproof vest.
(Item 27)
Item 20. The dangerous article according to Item 19, wherein the article is an explosion-proof suit.
(Item 28)
An article capable of protecting the user against both radiation hazards and flame hazards,
A polymer layer resistant to flame, and
A radiation-protective polymer mixture adhered to or otherwise attached to the refractory layer;
The radiation-protecting polymer mixture includes a polymer, barium, barium sulfate, barium chloride, other barium compounds, tungsten, tungsten carbide, tungsten oxide, other tungsten compounds, bismuth, bismuth compounds, tantalum, tantalum compounds, titanium, Titanium compound, Diatrizoate Meglumine Inj. USP, Acetrizate Sodium, Boron, Boric Acid, Boron Oxide, Boron Salt, Other Boron Compounds, Beryllium, Beryllium Compound, Bunamidody Didium, Diatizodium Sodium, Ethiodoid Oil, Iobacic Acid, Iobacic Acid, Ioboid Acid , Iodoalphic Acid, o-Idohippurate Sodium, Iodophthalin Sodium, Idopyracet, Iolytic Acid, Iohexol, Iomeric Ipomoid, Iopaimoid, Iopaimoid ol, Iophendylate, Iophenoxic Acid, Iopromide, Iopronic Acid, Iopydol, Iopydone, Iothalamic Acid, Iotrolan, Ioversol, Ioxaglic Acid, Ioxilan, Ipodate, Meglumine Acetrizoate, Meglumine Ditrizoate Methiodal Sodium, Metrizamide, Metrizoic Acid, Phenobutiodil, Phentetiothalein Sodium, Propryliodone, Sodium Idomemethamate, Sozodiolic Acid, Thorium Oxide and Trypanoate S And a radiation protection material selected from the group consisting of Dium,
Danger protection article.
(Item 29)
Item 29. Hazard protection article according to item 28, wherein the radiation protection material comprises tungsten and / or barium sulfate.
(Item 30)
29. Danger protection according to item 28, wherein the polymer in the radiation protective polymer mixture is selected from the group consisting of ethyl vinyl acetate, polyethylene, polyurethane, polyamide, polyvinyl chloride, polyvinyl alcohol, natural latex, polypropylene, and polyester. Goods.
(Item 31)
Item 29. The hazard protection article according to Item 28, wherein the refractory layer contains aramid fibers and / or polytetrafluoroethylene.
(Item 32)
29. A hazard protection article according to item 28, wherein the radiation protection polymer mixture is laminated to the refractory layer.
(Item 33)
Item 29. The danger protection article according to Item 28, wherein the article is a flame protection jumper that is connected in series.
(Item 34)
29. A hazard protection article according to item 28, wherein the article is a two-piece flame protection suit.
(Item 35)
A polymer mixture having radiation protection and heat dissipation properties,
polymer,
A heat dissipating material selected from the group consisting of silver, copper, gold, aluminum, beryllium, calcium, tungsten, magnesium, zinc, iron, nickel, carbon, molybdenum and tin, and
Barium, barium sulfate, barium chloride, other barium compounds, tungsten, tungsten carbide, tungsten oxide, other tungsten compounds, bismuth, bismuth compounds, tantalum, tantalum compounds, titanium, titanium compounds, Diatrizoate Meglumine Inj. USP, Acetrizate Sodium, Boron, Boric Acid, Boron Oxide, Boron Salt, Other Boron Compounds, Beryllium, Beryllium Compound, Bunamidody Didium, Diatizodium Sodium, Ethiodoid Oil, Iobacic Acid, Iobacic Acid, Ioboid Acid , Iodoalphic Acid, o-Idohippurate Sodium, Iodophthalin Sodium, Idopyracet, Iolytic Acid, Iohexol, Iomeric Ipomoid, Iopaimoid, Iopaimoid ol, Iophendylate, Iophenoxic Acid, Iopromide, Iopronic Acid, Iopydol, Iopydone, Iothalamic
Acid, Iotrolan, Ioversol, Ioxaglic Acid, Ioxilan, Ipodate, Meglumine Acetrizoate, Meglumine Ditrizoate Methiodal Sodium, Metrizamide, Metrizoic Acid, Phenobutiodil, Phentetiothalein Sodium, Propryliodone, Sodium Iodomethamate, Sozoiodolic Acid, is selected from the group consisting of Thorium Oxide and Trypanoate Sodium Radiation protection material,
A polymer mixture comprising
(Item 36)
36. The polymer mixture according to item 35, wherein the heat dissipation material is copper or aluminum, and the radiation protection material is barium sulfate or tungsten.
(Item 37)
36. The polymer mixture according to item 35, which is laminated on a woven fabric or a nonwoven fabric.
(Item 38)
An article that can protect the user against both flying objects and harmful chemicals,
A polymer layer selected from the group consisting of aramid fabrics and polyethylene fabrics and having resistance to flying objects; and
Chemical resistant protective layer adhered to the flying object penetration layer or attached by other methods
Including
The chemical resistant protective layer incorporates one or more polymers selected from the group consisting of high speed spun polyethylene, polypropylene, polyvinyl chloride, chlorinated polyethylene, nylon, polyurethane, aramid, polytetrafluoroethylene and neoprene,
Goods.
(Item 39)
A radiation protection layer further comprising adhering to or otherwise attaching to the flying object layer and the chemical protection layer;
The radiation protective layer comprises a polymer, barium, barium sulfate, barium chloride, other barium compounds, tungsten, tungsten carbide, tungsten oxide, other tungsten compounds, bismuth, bismuth compounds, tantalum, tantalum compounds, titanium, titanium compounds, Diatrizoate Meglumine Inj. USP, Acetrizate Sodium, Boron, Boric Acid, Boron Oxide, Boron Salt, Other Boron Compounds, Beryllium, Beryllium Compound, Bunamidody Didium, Diatizodium Sodium, Ethiodoid Oil, Iobacic Acid, Iobacic Acid, Ioboid Acid , Iodoalphic Acid, o-Idohippurate Sodium, Iodophthalin Sodium, Idopyracet, Iolytic Acid, Iohexol, Iomeric Ipomoid, Iopaimoid, Iopaimoid ol, Iophendylate, Iophenoxic Acid, Iopromide, Iopronic Acid, Iopydol, Iopydone, Iothalamic Acid, Iotrolan, Ioversol, Ioxaglic Acid, Ioxilan, Ipodate, Meglumine Acetrizoate, Meglumine Ditrizoate Methiodal Sodium, Metrizamide, Metrizoic Acid, Phenobutiodil, Phentetiothalein Sodium, Propryliodone, Sodium Idomemethamate, Sozodiolic Acid, Thorium Oxide and Trypanoate S And a radiation protection material selected from the group consisting of Dium,
Item 40. Item 38.
(Item 40)
40. The article according to item 39, wherein the polymer in the radiation protective layer is selected from the group consisting of ethyl vinyl acetate, polyethylene, polyurethane, polyamide, polyvinyl chloride, polyvinyl alcohol, natural latex, polypropylene, and polyester.
(Item 41)
A refractory layer is further provided by adhering or otherwise attaching to the flying object layer and the chemical protection layer;
40. The article of item 38, wherein the refractory layer comprises aramid fibers and / or polytetrafluoroethylene.
(Item 42)
A heat dissipating layer is further provided by adhering to or otherwise attaching to the flying object layer and the chemical protection layer;
The heat dissipating layer comprises a polymer and a heat dissipating material selected from the group consisting of silver, copper, gold, aluminum, beryllium, calcium, tungsten, magnesium, zinc, iron, nickel, carbon, molybdenum and tin;
Item 40. Item 38.
(Item 43)
A multi-layer article that can protect the user against flying object penetration, harmful chemicals, radiation, flames, and overheating,
A polymer layer selected from the group consisting of aramid fabrics and polyethylene fabrics and having resistance to the penetration of flying objects;
A chemical resistant protective layer comprising one or more polymers selected from the group consisting of high speed spun polyethylene, polypropylene, polyvinyl chloride, chlorinated ethylene, nylon, polyurethane, aramid and neoprene,
Polymers selected from the group consisting of ethyl vinyl acetate, polyethylene, polyurethane, polyamide, polyvinyl chloride, polyvinyl alcohol, natural latex, polypropylene and polyester, and barium, barium sulfate, barium chloride, other barium compounds, tungsten, tungsten carbide , Tungsten oxide, other tungsten compounds, bismuth, bismuth compounds, tantalum, tantalum compounds, titanium, titanium compounds, Diatrizoate Meglumine Inj. USP, Acetrizate Sodium, Boron, Boric Acid, Boron Oxide, Boron Salt, Other Boron Compounds, Beryllium, Beryllium Compound, Bunamidody Didium, Diatizodium Sodium, Ethiodoid Oil, Iobacic Acid, Iobacic Acid, Ioboid Acid , Iodoalphic Acid, o-Idohippurate Sodium, Iodophthalin Sodium, Idopyracet, Iolytic Acid, Iohexol, Iomeric Ipomoid, Iopaimoid, Iopaimoid ol, Iophendylate, Iophenoxic Acid, Iopromide, Iopronic Acid, Iopydol, Iopydone, Iothalamic Acid, Iotrolan, Ioversol, Ioxaglic Acid, Ioxilan, Ipodate, Meglumine Acetrizoate, Meglumine Ditrizoate Methiodal Sodium, Metrizamide, Metrizoic Acid, Phenobutiodil, Phentetiothalein Sodium, Propryliodone, Sodium Idomemethamate, Sozodiolic Acid, Thorium Oxide and Trypanoate S Radiation protection layer containing a radiation protection material selected from the group consisting of Dium,
A refractory layer comprising aramid fibers and / or polytetrafluoroethylene, and
A heat dissipation layer comprising a polymer and a heat dissipation material selected from the group consisting of silver, copper, gold, aluminum, beryllium, calcium, tungsten, magnesium, zinc, iron, nickel, carbon, molybdenum and tin;
Multi-layer article having
(Item 44)
Radiation resistant backing for building foundations, building walls, building roofs, or machinery,
Layers of fabric, and
A radiation protective polymer mixture adhered to or otherwise attached to the fabric;
The radiation-protecting polymer mixture includes a polymer, barium, barium sulfate, barium chloride, other barium compounds, tungsten, tungsten carbide, tungsten oxide, other tungsten compounds, bismuth, bismuth compounds, tantalum, tantalum compounds, titanium, Titanium compound, Diatrizoate Meglumine Inj. USP, Acetrizate Sodium, Boron, Boric Acid, Boron Oxide, Boron Salt, Other Boron Compounds, Beryllium, Beryllium Compound, Bunamidody Didium, Diatizodium Sodium, Ethiodoid Oil, Iobacic Acid, Iobacic Acid, Ioboid Acid , Iodoalphic Acid, o-Idohippurate Sodium, Iodophthalin Sodium, Idopyracet, Iolytic Acid, Iohexol, Iomeric Ipomoid, Iopaimoid, Iopaimoid ol, Iophendylate, Iophenoxic Acid, Iopromide, Iopronic Acid, Iopydol, Iopydone, Iothalamic Acid, Iotrolan, Ioversol, Ioxaglic Acid, Ioxilan, Ipodate, Meglumine Acetrizoate, Meglumine Ditrizoate Methiodal Sodium, Metrizamide, Metrizoic Acid, Phenobutiodil, Phentetiothalein Sodium, Propryliodone, Sodium Idomemethamate, Sozodiolic Acid, Thorium Oxide and Trypanoate S And a radiation protection material selected from the group consisting of Dium,
Backing material.
(Item 45)
A probe for detecting radiation,
At least a portion of barium, barium sulfate, barium chloride, other barium compounds, tungsten, tungsten carbide, tungsten oxide, other tungsten compounds, bismuth, bismuth compounds, tantalum, tantalum compounds, titanium, titanium compounds, Diatrizoate Meglumine Inj. USP, Acetrizate Sodium, Boron, Boric Acid, Boron Oxide, Boron Salt, Other Boron Compounds, Beryllium, Beryllium Compound, Bunamidody Didium, Diatizodium Sodium, Ethiodoid Oil, Iobacic Acid, Iobacic Acid, Ioboid Acid , Iodoalphic Acid, o-Idohippurate Sodium, Iodophthalin Sodium, Idopyracet, Iolytic Acid, Iohexol, Iomeric Ipomoid, Iopaimoid, Iopaimoid ol, Iophendylate, Iophenoxic Acid, Iopromide, Iopronic Acid, Iopydol, Iopydone, Iothalamic Acid, Iotrolan, Ioversol, Ioxaglic Acid, Ioxilan, Ipodate, Meglumine Acetrizoate, Meglumine Ditrizoate Methiodal Sodium, Metrizamide, Metrizoic Acid, Phenobutiodil, Phentetiothalein Sodium, Propryliodone, Sodium Idomemethamate, Sozodiolic Acid, Thorium Oxide and Trypanoate S Probe housing that consists of a polymer composite material incorporating a radiation blocking material selected from the group consisting of Dium,
A window located in the probe housing for passing radiation; and
A radiation detector located within the housing for detecting radiation passing through the window;
A probe for detecting radiation.
(Item 46)
A method for manufacturing a radiation protection article, comprising:
Barium, barium sulfate, barium chloride, other barium compounds, tungsten, tungsten carbide, tungsten oxide, other tungsten compounds, bismuth, bismuth compounds, tantalum, tantalum compounds, titanium, titanium compounds, Diatrizoate Meglumine Inj. USP, Acetrizate Sodium, Boron, Boric Acid, Boron Oxide, Boron Salt, Other Boron Compounds, Beryllium, Beryllium Compound, Bunamidody Didium, Diatizodium Sodium, Ethiodoid Oil, Iobacic Acid, Iobacic Acid, Ioboid Acid , Iodoalphic Acid, o-Idohippurate Sodium, Iodophthalin Sodium, Idopyracet, Iolytic Acid, Iohexol, Iomeric Ipomoid, Iopaimoid, Iopaimoid ol, Iophendylate, Iophenoxic Acid, Iopromide, Iopronic Acid, Iopydol, Iopydone, Iothalamic Acid, Iotrolan, Ioversol, Ioxaglic Acid, Ioxilan, Ipodate, Meglumine Acetrizoate, Meglumine Ditrizoate Methiodal Sodium, Metrizamide, Metrizoic Acid, Phenobutiodil, Phentetiothalein Sodium, Propryliodone, Sodium Idomemethamate, Sozodiolic Acid, Thorium Oxide and Trypanoate S The radiation protection material selected from the group consisting of Dium, were mixed with the polymer, to produce a polymer mixture,
Attaching the polymer mixture to a fabric or other flexible material to render the fabric or other flexible material radiation protective; and
Constructing a functional article from the radiation protective fabric or other flexible material;
Including methods.
(Item 47)
47. A method according to item 46, wherein the radiation protection material comprises at least 50% by weight of the polymer mixture.
(Item 48)
47. A method according to item 46, further comprising a plurality of the radiation protection materials in the polymer mixture.
(Item 49)
49. The method of item 48, wherein the plurality of radiation protection materials comprise tungsten, barium sulfate, and bismuth.
(Item 50)
47. A method according to item 46, wherein the polymer mixture further comprises one or more additives.
(Item 51)
51. The method of item 50, wherein the one or more additives are selected from the group consisting of epoxy soybean oil, ethylene glycol and propylene glycol.
(Item 52)
47. A method according to item 46, wherein the article is a series of jumpsuits.
(Item 53)
47. A method according to item 46, wherein the article is a combination of a two-piece jacket and trousers.
(Item 54)
47. A method according to item 46, wherein the article is a medical apron.
(Item 55)
47. A method according to item 46, wherein the polymer is selected from the group consisting of polyurethane, polyamide, polyvinyl chloride, polyvinyl alcohol, natural latex, polyethylene, polypropylene, ethylene vinyl acetate and polyester.
(Item 56)
47. A method according to item 46, wherein the fabric or other flexible material is a non-woven polymer fabric.
(Item 57)
58. The method of item 56, wherein the nonwoven polymer fabric is selected from the group consisting of polypropylene, polyethylene, polyester, and rayon.
(Item 58)
47. A method according to item 46, wherein the fabric or other flexible material is paper.
(Item 59)
A method for producing an article that provides protection against radiation and penetration of flying objects comprising:
Barium, barium sulfate, barium chloride, other barium compounds, tungsten, tungsten carbide, tungsten oxide, other tungsten compounds, bismuth, bismuth compounds, tantalum, tantalum compounds, titanium, titanium compounds, Diatrizoate Meglumine Inj. USP, Acetrizate Sodium, Boron, Boric Acid, Boron Oxide, Boron Salt, Other Boron Compounds, Beryllium, Beryllium Compound, Bunamidody Didium, Diatizodium Sodium, Ethiodoid Oil, Iobacic Acid, Iobacic Acid, Ioboid Acid , Iodoalphic Acid, o-Idohippurate Sodium, Iodophthalin Sodium, Idopyracet, Iolytic Acid, Iohexol, Iomeric Ipomoid, Iopaimoid, Iopaimoid ol, Iophendylate, Iophenoxic Acid, Iopromide, Iopronic Acid, Iopydol, Iopydone, Iothalamic Acid, Iotrolan, Ioversol, Ioxaglic Acid, Ioxilan, Ipodate, Meglumine Acetrizoate, Meglumine Ditrizoate Methiodal Sodium, Metrizamide, Metrizoic Acid, Phenobutiodil, Phentetiothalein Sodium, Propryliodone, Sodium Idomemethamate, Sozodiolic Acid, Thorium Oxide and Trypanoate S The radiation protection material selected from the group consisting of Dium, were mixed with the polymer, to produce a polymer mixture,
Attaching the polymer mixture to a fabric or other flexible material that is resistant to the penetration of flying objects; and
Constructing a functional article from the radiation and flying object protective fabric or other flexible material;
Including methods.
(Item 60)
60. The method of item 59, wherein the radiation protection material comprises at least 50% by weight of the polymer mixture.
(Item 61)
60. The method of item 59, further comprising a plurality of said radiation protection materials in said polymer mixture.
(Item 62)
60. A method according to item 59, wherein the fly-through resistant fabric or other material comprises an aramid fabric and / or a polyethylene fabric.
(Item 63)
63. A method according to item 62, wherein the flying object penetration layer includes a plurality of layers of aramid fabric and / or polyethylene fabric.
(Item 64)
60. A method according to item 59, wherein the article is a series of jumpsuits.
(Item 65)
60. A method according to item 59, wherein the article is a combination of a two-piece jacket and trousers.
(Item 66)
60. A method according to item 59, wherein the article is a bulletproof vest.
(Item 67)
60. A method according to item 59, wherein the polymer is selected from the group consisting of polyurethane, polyamide, polyvinyl chloride, polyvinyl alcohol, natural latex, polyethylene, polypropylene, ethylene vinyl acetate and polyester.
(Item 68)
A method for producing an article that provides protection against radiation and flame hazards, comprising:
Barium, barium sulfate, barium chloride, other barium compounds, tungsten, tungsten carbide, tungsten oxide, other tungsten compounds, bismuth, bismuth compounds, tantalum, tantalum compounds, titanium, titanium compounds, Diatrizoate Meglumine Inj. USP, Acetrizate Sodium, Boron, Boric Acid, Boron Oxide, Boron Salt, Other Boron Compounds, Beryllium, Beryllium Compound, Bunamidody Didium, Diatizodium Sodium, Ethiodoid Oil, Iobacic Acid, Iobacic Acid, Ioboid Acid , Iodoalphic Acid, o-Idohippurate Sodium, Iodophthalin Sodium, Idopyracet, Iolytic Acid, Iohexol, Iomeric Ipomoid, Iopaimoid, Iopaimoid ol, Iophendylate, Iophenoxic Acid, Iopromide, Iopronic Acid, Iopydol, Iopydone, Iothalamic Acid, Iotrolan, Ioversol, Ioxaglic Acid, Ioxilan, Ipodate, Meglumine Acetrizoate, Meglumine Ditrizoate Methiodal Sodium, Metrizamide, Metrizoic Acid, Phenobutiodil, Phentetiothalein Sodium, Propryliodone, Sodium Idomemethamate, Sozodiolic Acid, Thorium Oxide and Trypanoate S The radiation protection material selected from the group consisting of Dium, were mixed with the polymer, to produce a polymer mixture,
Attaching the polymer mixture to a fabric or other flexible material that is resistant to flame; and
Constructing a functional article from the radiation and flame protective fabric or other flexible material;
Including methods.
(Item 69)
69. A method according to item 68, wherein the radiation protection material comprises at least 50% by weight of the polymer mixture.
(Item 70)
69. The method of item 68, wherein the fire resistant fabric or other flexible material comprises aramid fibers and / or polytetrafluoroethylene.
(Item 71)
70. A method according to item 68, wherein the article is a series of jumpsuits.
(Item 72)
70. A method according to item 68, wherein the article is a combination of a two-piece jacket and trousers.
(Item 73)
69. A method according to item 68, wherein the polymer is selected from the group consisting of polyurethane, polyamide, polyvinyl chloride, polyvinyl alcohol, natural latex, polyethylene, polypropylene, ethylene vinyl acetate and polyester.
(Item 74)
A method for producing an article that provides protection against radiation and overheating comprising:
Barium, barium sulfate, barium chloride, other barium compounds, tungsten, tungsten carbide, tungsten oxide, other tungsten compounds, bismuth, bismuth compounds, tantalum, tantalum compounds, titanium, titanium compounds, Diatrizoate Meglumine Inj. USP, Acetrizate Sodium, Boron, Boric Acid, Boron Oxide, Boron Salt, Other Boron Compounds, Beryllium, Beryllium Compound, Bunamidody Didium, Diatizodium Sodium, Ethiodoid Oil, Iobacic Acid, Iobacic Acid, Ioboid Acid , Iodoalphic Acid, o-Idohippurate Sodium, Iodophthalin Sodium, Idopyracet, Iolytic Acid, Iohexol, Iomeric Ipomoid, Iopaimoid, Iopaimoid ol, Iophendylate, Iophenoxic Acid, Iopromide, Iopronic Acid, Iopydol, Iopydone, Iothalamic Acid, Iotrolan, Ioversol, Ioxaglic Acid, Ioxilan, Ipodate, Meglumine Acetrizoate, Meglumine Ditrizoate Methiodal Sodium, Metrizamide, Metrizoic Acid, Phenobutiodil, Phentetiothalein Sodium, Propryliodone, Sodium Idomemethamate, Sozodiolic Acid, Thorium Oxide and Trypanoate S Radiation protection material selected from the group consisting of dium, and heat dissipation material selected from the group consisting of silver, copper, gold, aluminum, beryllium, calcium, tungsten, magnesium, zinc, iron, nickel, carbon, molybdenum and tin Mixing both with a polymer to form a polymer mixture,
Attaching the polymer mixture to a fabric or other flexible material; and
Constructing a functional article from the radiation protective and heat dissipating fabric or other flexible material;
Including methods.
(Item 75)
75. A method according to item 74, wherein the article is a series of jumpsuits.
(Item 76)
75. A method according to item 74, wherein the article is a combination of a two-piece jacket and trousers.
(Item 77)
75. A method according to item 74, wherein the polymer is selected from the group consisting of polyurethane, polyamide, polyvinyl chloride, polyvinyl alcohol, natural latex, polyethylene, polypropylene, ethylene vinyl acetate and polyester.
(Item 78)
A method for producing an article for radiation protection comprising:
Barium, barium sulfate, barium chloride, other barium compounds, tungsten, tungsten carbide, tungsten oxide, other tungsten compounds, bismuth, bismuth compounds, tantalum, tantalum compounds, titanium, titanium compounds, Diatrizoate Meglumine Inj. USP, Acetrizate Sodium, Boron, Boric Acid, Boron Oxide, Boron Salt, Other Boron Compounds, Beryllium, Beryllium Compound, Bunamidody Didium, Diatizodium Sodium, Ethiodoid Oil, Iobacic Acid, Iobacic Acid, Ioboid Acid , Iodoalphic Acid, o-Idohippurate Sodium, Iodophthalin Sodium, Idopyracet, Iolytic Acid, Iohexol, Iomeric Ipomoid, Iopaimoid, Iopaimoid ol, Iophendylate, Iophenoxic Acid, Iopromide, Iopronic Acid, Iopydol, Iopydone, Iothalamic Acid, Iotrolan, Ioversol, Ioxaglic Acid, Ioxilan, Ipodate, Meglumine Acetrizoate, Meglumine Ditrizoate Methiodal Sodium, Metrizamide, Metrizoic Acid, Phenobutiodil, Phentetiothalein Sodium, Propryliodone, Sodium Idomemethamate, Sozodiolic Acid, Thorium Oxide and Trypanoate S The radiation protection material selected from the group consisting of Dium, were mixed with the polymer, to produce a polymer mixture,
Heating the polymer mixture until it takes the form of a liquid;
Applying the liquid polymer mixture to a first sheet of fabric or other flexible material;
A second sheet of fabric or other flexible material is interposed between the first sheet of fabric or other flexible material and the second sheet with a layer having the polymer mixture. Pressing together with the first sheet of fabric or other flexible material, and
Constructing an article from the radiation protective fabric composite or other flexible material composite.
(Item 79)
The polymer mixture is mixed and heated in one or more extruders from one of the extruders to the first sheet and the second sheet of fabric or other flexible material. 79. A method according to item 78, which is applied simultaneously.
(Item 80)
79. A method according to item 78, wherein the radiation protection material comprises at least 50% by weight of the polymer mixture.
(Item 81)
79. The method of item 78, further comprising a plurality of said radiation protection materials in said polymer mixture.
(Item 82)
79. The method of item 78, wherein one or more of the sheets of fabric or other flexible material is resistant to flying object penetration.
(Item 83)
83. A method according to item 82, wherein the flying object penetration fabric or other material comprises aramid fibers and / or polyethylene fibers.
(Item 84)
79. The method of item 78, wherein one or more of the sheets of fabric or other flexible material is a fire resistant fabric.
(Item 85)
85. The method of item 84, wherein the refractory fabric comprises aramid fibers and / or polytetrafluoroethylene.
(Item 86)
Item 78, wherein the polymer mixture further comprises a heat dissipating material selected from the group consisting of silver, copper, gold, aluminum, beryllium, calcium, tungsten, magnesium, zinc, iron, nickel, carbon, molybdenum and tin. The method described in 1.
(Item 87)
A method for producing a radiation protection film comprising:
Barium, barium sulfate, barium chloride, other barium compounds, tungsten, tungsten carbide, tungsten oxide, other tungsten compounds, bismuth, bismuth compounds, tantalum, tantalum compounds, titanium, titanium compounds, Diatrizoate Meglumine Inj. USP, Acetrizate Sodium, Boron, Boric Acid, Boron Oxide, Boron Salt, Other Boron Compounds, Beryllium, Beryllium Compound, Bunamidody Didium, Diatizodium Sodium, Ethiodoid Oil, Iobacic Acid, Iobacic Acid, Ioboid Acid , Iodoalphic Acid, o-Idohippurate Sodium, Iodophthalin Sodium, Idopyracet, Iolytic Acid, Iohexol, Iomeric Ipomoid, Iopaimoid, Iopaimoid ol, Iophendylate, Iophenoxic Acid, Iopromide, Iopronic Acid, Iopydol, Iopydone, Iothalamic
Acid, Iotrolan, Ioversol, Ioxaglic Acid, Ioxilan, Ipodate, Meglumine Acetrizoate, Meglumine Ditrizoate Methiodal Sodium, Metrizamide, Metrizoic Acid, Phenobutiodil, Phentetiothalein Sodium, Propryliodone, Sodium Iodomethamate, Sozoiodolic Acid, is selected from the group consisting of Thorium Oxide and Trypanoate Sodium Mixing the radiation protection material with the polymer to form a polymer mixture;
Heating the polymer mixture to a flexible form; and
Forming the flexible polymer mixture into a film;
Including methods.
(Item 88)
90. The method of item 87, wherein the polymer mixture is mixed and heated in an extruder and then deposited on an annular conveyor.
(Item 89)
90. The method of item 87, further comprising the step of compressing the flexible polymer mixture between calender rolls.
(Item 90)
90. The method of item 87, wherein the radiation protection material comprises at least 50% by weight of the polymer mixture.
(Item 91)
A method for adding radiopaque properties to a paint,
Including the step of adding radiation protection material to the paint, and the step of mixing,
The radiation protection material is barium, barium sulfate, barium chloride, other barium compounds, tungsten, tungsten carbide, tungsten oxide, other tungsten compounds, bismuth, bismuth compounds, tantalum, tantalum compounds, titanium, titanium compounds, Diatrizoate Meglumine Inj . USP, Actrizoate
Sodium, Boron, Boric acid, Boron oxide, Boron salt, Other boron compounds, Beryllium, Beryllium compound, Bunamidoyl Sodium, Diatriodium Sodium, Ethiodoid Iodide Ixidic Acid, Ioboid Acid Acid, Iocamic Acid, Iocamic Acid , O-Iodohippurate Sodium, Iodophthalein Sodium, Iodopyracet, Ioglymic Acid, Iohexol, Iomeric Acid, Iopamidol, Iopanoicol Ido , Iophenoxic Acid, Iopromide, Iopronic Acid, Iopydol, Iopydone, Iothalamic Acid, Iotrolan, Ioversol, Ioxaglic Acid, Ioxilan, Ipodate, Meglumine Acetrizoate, Meglumine Ditrizoate Methiodal Sodium, Metrizamide, Metrizoic Acid, Phenobutiodil, Phentetiothalein Sodium, Propryliodone, Sodium Iodomethamate, Selected from the group consisting of Sozoiodic Acid, Thorium Oxide, and Trypanoate Sodium How.
(Item 92)
A liquid polymer mixture comprising a radiation protection material, a polymer, and additives comprising:
The radiation protection material is barium, barium sulfate, barium chloride, other barium compounds, tungsten, tungsten carbide, tungsten oxide, other tungsten compounds, bismuth, bismuth compounds, tantalum, tantalum compounds, titanium, titanium compounds, Diatrizoate Meglumine Inj . USP, Acetrizate Sodium, Boron, Boric Acid, Boron Oxide, Boron Salt, Other Boron Compounds, Beryllium, Beryllium Compound, Bunamidody Didium, Diatizodium Sodium, Ethiodoid Oil, Iobacic Acid, Iobacic Acid, Ioboid Acid , Iodoalphic Acid, o-Idohippurate Sodium, Iodophthalin Sodium, Idopyracet, Iolytic Acid, Iohexol, IomericIpoid, Iopaimoid, Iopaimoid ol, Iophendylate, Iophenoxic Acid, Iopromide, Iopronic Acid, Iopydol, Iopydone, Iothalamic Acid, Iotrolan, Ioversol, Ioxaglic Acid, Ioxilan, Ipodate, Meglumine Acetrizoate, Meglumine Ditrizoate Methiodal Sodium, Metrizamide, Metrizoic Acid, Phenobutiodil, Phentetiothalein Sodium, Propryliodone, Sodium Idomemethamate, Sozodiolic Acid, Thorium Oxide and Trypanoate S Is selected from the group consisting of dium,
The polymer is selected from the group consisting of polyurethane, polyamide, polyvinyl chloride, polyvinyl alcohol, natural latex, polyethylene, polypropylene, ethylene vinyl acetate and polyester;
The additive is selected from the group consisting of epoxy soybean oil, ethylene glycol and propylene glycol;
Liquid polymer mixture.
(Item 93)
A method for manufacturing an article that provides protection against multiple hazards, comprising:
Barium, barium sulfate, barium chloride, other barium compounds, tungsten, tungsten carbide, tungsten oxide, other tungsten compounds, bismuth, bismuth compounds, tantalum, tantalum compounds, titanium, titanium compounds, Diatrizoate Meglumine Inj. USP, Acetrizate Sodium, Boron, Boric Acid, Boron Oxide, Boron Salt, Other Boron Compounds, Beryllium, Beryllium Compound, Bunamidody Didium, Diatizodium Sodium, Ethiodoid Oil, Iobacic Acid, Iobacic Acid, Ioboid Acid , Iodoalphic Acid, o-Idohippurate Sodium, Iodophthalin Sodium, Idopyracet, Iolytic Acid, Iohexol, IomericIpoid, Iopaimoid, Iopaimoid ol, Iophendylate, Iophenoxic Acid, Iopromide, Iopronic Acid, Iopydol, Iopydone, Iothalamic Acid, Iotrolan, Ioversol, Ioxaglic Acid, Ioxilan, Ipodate, Meglumine Acetrizoate, Meglumine Ditrizoate Methiodal Sodium, Metrizamide, Metrizoic Acid, Phenobutiodil, Phentetiothalein Sodium, Propryliodone, Sodium Idomemethamate, Sozodiolic Acid, Thorium Oxide and Trypanoate S The radiation protection material selected from the group consisting of Dium, were mixed with the polymer, to produce a first polymer mixture,
Heating the first polymer mixture until it takes the form of a liquid;
Applying the liquid first polymer mixture to a sheet of fabric or other flexible material;
Curing the liquid first polymer mixture on the sheet of fabric or other flexible material;
Heating a second polymer mixture capable of providing protection against other types of hazards;
Applying the second polymer mixture onto the cured first polymer mixture; and
Constructing an article from the polymerized fabric composite or other flexible material composite.
(Item 94)
94. A method according to item 93, wherein the second polymer mixture provides fire resistance.
(Item 95)
94. A method according to item 93, wherein the second polymer mixture resists penetration of flying objects.
(Item 96)
94. The method of item 93, wherein the second polymer mixture dissipates heat easily.
(Item 97)
A method for manufacturing an article that provides protection against multiple hazards, comprising:
Barium, barium sulfate, barium chloride, other barium compounds, tungsten, tungsten carbide, tungsten oxide, other tungsten compounds, bismuth, bismuth compounds, tantalum, tantalum compounds, titanium, titanium compounds, Diatrizoate Meglumine Inj. USP, Acetrizate Sodium, Boron, Boric Acid, Boron Oxide, Boron Salt, Other Boron Compounds, Beryllium, Beryllium Compound, Bunamidody Didium, Diatizodium Sodium, Ethiodoid Oil, Iobacic Acid, Iobacic Acid, Ioboid Acid , Iodoalphic Acid, o-Idohippurate Sodium, Iodophthalin Sodium, Idopyracet, Iolytic Acid, Iohexol, IomericIpoid, Iopaimoid, Iopaimoid ol, Iophendylate, Iophenoxic Acid, Iopromide, Iopronic Acid, Iopydol, Iopydone, Iothalamic Acid, Iotrolan, Ioversol, Ioxaglic Acid, Ioxilan, Ipodate, Meglumine Acetrizoate, Meglumine Ditrizoate Methiodal Sodium, Metrizamide, Metrizoic Acid, Phenobutiodil, Phentetiothalein Sodium, Propryliodone, Sodium Idomemethamate, Sozodiolic Acid, Thorium Oxide and Trypanoate S The radiation protection material selected from the group consisting of Dium, were mixed with the polymer, to produce a first polymer mixture,
Heating the first polymer mixture until it takes the form of a liquid;
Applying the liquid first polymer mixture to a first sheet of fabric or other flexible material;
A second sheet of fabric or other flexible material is disposed between the first sheet of fabric or other flexible material and the second sheet comprising the first polymer mixture. Pressing together with the first sheet of fabric or other flexible material to be interposed;
Heating a second polymer mixture capable of providing another type of danger protection until it takes the form of a liquid;
Applying the second polymer mixture to a surface of the first sheet or the second sheet of fabric or other flexible material in which the first polymer mixture is not present; and
Constructing an article from the radiation protective fabric composite or other flexible material composite;
Including methods.
(Item 98)
98. The method of item 97, wherein the second polymer mixture provides fire resistance.
(Item 99)
98. The method of item 97, wherein the second polymer mixture resists penetration of flying objects.
(Item 100)
98. The method of item 97, wherein the second polymer mixture dissipates heat easily.
(Item 101)
An article capable of protecting the user against both radiation hazards and chemical hazards,
A polymer layer resistant to chemical hazards, and
A radiation protective polymer mixture adhered to or otherwise attached to the chemical resistant layer;
Including
The radiation-protecting polymer mixture includes a polymer, barium, barium sulfate, barium chloride, other barium compounds, tungsten, tungsten carbide, tungsten oxide, other tungsten compounds, bismuth, bismuth compounds, tantalum, tantalum compounds, titanium, Titanium compound, Diatrizoate Meglumine Inj. USP, Acetrizate Sodium, Boron, Boric Acid, Boron Oxide, Boron Salt, Other Boron Compounds, Beryllium, Beryllium Compound, Bunamidody Didium, Diatizodium Sodium, Ethiodoid Oil, Iobacic Acid, Iobacic Acid, Ioboid Acid , Iodoalphic Acid, o-Idohippurate Sodium, Iodophthalin Sodium, Idopyracet, Iolytic Acid, Iohexol, IomericIpoid, Iopaimoid, Iopaimoid ol, Iophendylate, Iophenoxic Acid, Iopromide, Iopronic Acid, Iopydol, Iopydone, Iothalamic Acid, Iotrolan, Ioversol, Ioxaglic Acid, Ioxilan, Ipodate, Meglumine Acetrizoate, Meglumine Ditrizoate Methiodal Sodium, Metrizamide, Metrizoic Acid, Phenobutiodil, Phentetiothalein Sodium, Propryliodone, Sodium Idomemethamate, Sozodiolic Acid, Thorium Oxide and Trypanoate S And a radiation protection material selected from the group consisting of Dium,
Danger protection article.
(Item 102)
102. The hazard protection article according to item 101, wherein the radiation protection material contains tungsten and / or barium sulfate.
(Item 103)
102. The danger protection product according to item 101, wherein the polymer in the radiation protection polymer mixture is selected from the group consisting of ethylene vinyl acetate, polyethylene, polyurethane, polyamide, polyvinyl chloride, polyvinyl alcohol, natural latex, polypropylene, and polyester. Article
(Item 104)
102. The chemical-resistant protective layer according to item 101, wherein the chemical-resistant protective layer is at least partially composed of the group consisting of polyethylene, high-speed-spun polyethylene, polypropylene, polyvinyl chloride, chlorinated ethylene, nylon, polyurethane, aramid, and neoprene. Method.
(Item 105)
102. A method according to item 101, wherein the article is a continuous upper and lower jumpsuit.
(Item 106)
102. A method according to item 101, wherein the article is a combination of a two-piece jacket and trousers.
(Item 107)
A method for producing an article that provides protection against radiation hazards and chemical hazards, comprising:
Barium, barium sulfate, barium chloride, other barium compounds, tungsten, tungsten carbide, tungsten oxide, other tungsten compounds, bismuth, bismuth compounds, tantalum, tantalum compounds, titanium, titanium compounds, Diatrizoate Meglumine Inj. USP, Acetrizate Sodium, Boron, Boric Acid, Boron Oxide, Boron Salt, Other Boron Compounds, Beryllium, Beryllium Compound, Bunamidody Didium, Diatizodium Sodium, Ethiodoid Oil, Iobacic Acid, Iobacic Acid, Ioboid Acid , Iodoalphic Acid, o-Idohippurate Sodium, Iodophthalin Sodium, Idopyracet, Iolytic Acid, Iohexol, IomericIpoid, Iopaimoid, Iopaimoid ol, Iophendylate, Iophenoxic Acid, Iopromide, Iopronic Acid, Iopydol, Iopydone, Iothalamic Acid, Iotrolan, Ioversol, Ioxaglic Acid, Ioxilan, Ipodate, Meglumine Acetrizoate, Meglumine Ditrizoate Methiodal Sodium, Metrizamide, Metrizoic Acid, Phenobutiodil, Phentetiothalein Sodium, Propryliodone, Sodium Idomemethamate, Sozodiolic Acid, Thorium Oxide and Trypanoate S The radiation protection material selected from the group consisting of Dium, were mixed with the polymer, to produce a polymer mixture,
Attaching the polymer mixture to a fabric or other flexible material resistant to chemicals; and
Constructing a functional article from the radiation and chemical protective fabric or other flexible material;
Including methods.
(Item 108)
108. The method of item 107, wherein the radiation protection material comprises at least 50% by weight of the polymer mixture.
(Item 109)
The chemical resistant fabric or other flexible material includes at least partially high speed spun polyethylene, polypropylene, polyvinyl chloride, chlorinated ethylene, nylon, polyurethane, aramid, and / or neoprene. 107. The method according to 107.
(Item 110)
108. A method according to item 107, wherein the article is a continuous upper and lower jumpsuit.
(Item 111)
108. A method according to item 107, wherein the article is a combination of a two-piece jacket and trousers.
(Item 112)
69. The method of item 68, wherein the polymer for the polymer mixture is selected from the group consisting of polyurethane, polyamide, polyvinyl chloride, polyvinyl alcohol, natural latex, polyethylene, polypropylene, ethylene vinyl acetate and polyester.
(Item 113)
94. The method of item 93, wherein the second polymer mixture provides resistance to chemicals.
(Item 114)
98. The method of item 97, wherein the second polymer mixture provides resistance to chemicals.

FIG. 1 shows a full body suit that can protect a user against one or more life-threatening dangers. FIG. 2 shows a cross-section of a composite fabric having in the center a polymer layer containing multiple types of radiation protection materials. FIG. 3 shows a cross-section of a two-layer radiation protection composite fabric, and how the fabric can be provided with both breathability and radiation protection. FIG. 4 shows a cross section of a multi-layer radiation protection article that provides improved radiation protection. FIG. 5A shows a front view of a medical apron that can protect a user against one or more life-threatening dangers. FIG. 5B shows a rear view of the medical apron of FIG. 5A. FIG. 6 shows a two-piece suit that can protect a user against one or more life-threatening dangers. FIG. 7 shows a cross section of a radiation protection drywall incorporating the radiation protection material of the present invention. FIG. 8 shows a cross section of a wall body incorporating the radiation protection material of the present invention. FIG. 9 shows a cross section of a foundation incorporating the radiation protection material of the present invention. FIG. 10 is a perspective view of a probe incorporating the radiation protection material of the present invention. FIG. 11 shows a cross section of a six-layer fabric that provides multiple types of danger protection. FIG. 12 shows a bulletproof vest incorporating the radiation protective film or other protective fabric of the present invention. FIG. 13 illustrates a preferred process for forming a radiation protective fabric or other material by applying a liquid polymer incorporating a radiation protective material between two sheets. FIG. 14 is an improved version of the process shown in FIG. 13 in which an additional hazard protection layer has been created. FIG. 15 illustrates a second preferred process for forming a radiation protective fabric or other material by applying a liquid polymer incorporating a radiation protective material between two sheets. FIG. 16 shows an improved version of the process shown in FIG. 15, in which an additional hazard protection layer has been created. FIG. 17 illustrates an extended process for producing fabric with multiple types of hazard protection. FIG. 18 illustrates a preferred process for producing a polymer film incorporating a radiation protection material. FIG. 19 shows another process for producing a polymer film incorporating a radiation protection material. FIG. 20 shows an improved version of the process of FIG. 19, producing a film with multiple hazard protection properties.

  FIG. 1 shows a full body suit 10 made from the hazard protection fabric of the present invention. In order to provide full surface protection, the full body suit 10 should preferably be a series of jumpsuits covering every part of the human body. Elastic bands 12, 14 can be used around the hand and foot area to help ensure a tight fit. Alternatively, the gloves 16, boots 18 and hood 20 can be separate parts that overlap the rest of the jumpsuit so that the skin surface does not remain exposed. Further, the full body suit 10 can include a hook or looped fastener 28 or hooked flap 28 so that a user can easily enter the full body suit 10.

  To provide facial protection, the full body suit 10 is preferably provided with a transparent preocular shield 24. It is convenient to hinge the front shield 24 with a corner rivet 26 or the like so that the user can flip the front shield 24 up and down. Alternatively, the eye protection can be a separate and independent device such as safety glasses (not shown). To provide radiation protection, the preocular shield 24 preferably incorporates lead or similar radiation protection glass.

  FIG. 2 shows a cross-section of a composite fabric 50 having a radiation protective polymer interlayer 60, which can be used in the full body suit of FIG. 1 to provide radiation protection. In the illustration of FIG. 2, a polymer interlayer 60 comprising a polymer 52 and radiation protection material 62, 64, 66, 68 is sandwiched between two layers of fabric or other material 34, 36. ing. The outer fabric or other material 34, 36 is preferably flat and flexible. These may be nonwoven polymer fabrics, such as, for example, polypropylene, polyethylene, aramid fibers, rayon, or any mixture thereof. Alternatively, the outer fabric or other material may be a woven fabric such as a woven fabric, or may be other flat and flexible material such as paper or film.

  As radiation protection materials, for example, barium sulfate, tungsten, and bismuth are preferred choices in the present invention because they are lighter and cheaper than lead, for example, and have less known health hazards. Barium, other barium compounds (eg, barium chloride), tungsten compounds (eg, tungsten carbide and tungsten oxide), bismuth compounds, tantalum, tantalum compounds, titanium, titanium compounds, Diatrizoate Meglumine Inj. USP (commercially available from Nycomed Corporation under the trade name HYPAQUE ™), Aceticoate Sodium, Boron, Boric Acid, Boron Oxide, Boron Salts, Other Boron Compounds, Beryllium, Beryllium Compounds, Bunamidoid Sodium, Diatrizoed Edium Oil, Ibenzacic Acid, Iocaric Acid, Iothemic Acid, Iodipamide, Iodixanol, Iodized Oil, Iodoalphionic Acid, o-Idohipodium Sodium exol, Iomeglamic Acid, Iopamidol, Iopanoic Acid, Iopentol, Iophendylate, Iophenoxic Acid, Iopromide, Iopronic Acid, Iopydol, Iopydone, Iothalamic Acid, Iotrolan, Ioversol, Ioxaglic Acid, Ioxilan, Ipodate, Meglumine Acetrizoate, Meglumine Ditrizoate Methiodal Sodium, Metrizamide, Metricoic Acid, Phenobutiodil, Pheneticothalin Sodium, Propliodone, Sodium Iod methamate, Sozoiodolic Acid, Thorium Oxide, and Trypanoate Sodium etc., although other radiation protective materials can be used, but is not limited thereto. These radiopaque materials are P.I. O. Box 4829, Norcross, Georgia 30091 Fisher Scientific (phone number: 1-800-766-7000), P.M. O. Box 2060, Milwaukee, Wisconsin's Aldrich Chemical Company (tel: 1-800-558-9160); O. Box 14508, St. It can be purchased from various chemical suppliers such as Louis, Missouri 63178, Sigma (phone number: 1-800-325-3010). In order to obtain the best protection against radiation, the particle size of the radiation protection material is preferably smaller, for example a submicron size. However, the additional cost required for the purchase of such small size particles must be weighed against the importance of the additional protection obtained. One skilled in the art will readily appreciate that other radiation protection materials incorporating the same metal can be used in place of the radiation protection materials listed above.

  In the radiation protection composite fabric 50 of FIG. 2, a radiation protection material is embedded in the polymer mixture 60. The polymer mixture 60 preferably includes a polymer 52, one or more radiation protection materials 62, 64, 66, 68, and one or more additives. The polymer 52 can be selected from a wide range of plastics including but not limited to polyurethane, polyamide, polyvinyl chloride, polyvinyl alcohol, natural latex, polyethylene, polypropylene, ethylene vinyl acetate (EVA) and polyester. Absent. Additives are typically chemicals that improve flexibility, strength, durability or other end product properties and / or help ensure adequate uniformity and viscosity in the polymer mixture. These additives are, where appropriate, plasticizers (eg epoxidized soybean oil, ethylene glycol, propylene glycol, etc.), emulsifiers, surfactants, suspending agents, leveling agents, drying promoters, flow promoters. It may be an agent. Those skilled in the plastics process will be familiar with the selection and use of such additives.

  The proportion of these various constituent materials in the polymer mixture can vary. In general, greater radiation protection is provided by increasing the proportion of radiation protection material. However, if the proportion of radiation protection material is too high, the polymer mixture becomes brittle and easily breaks when dried or cooled. From our research, we have found that over 50% by weight of the polymer mixture is composed of barium sulfide, tungsten, bismuth or other radiation protection materials while the remainder of the mixture is composed of polymer. I found out that I can do it.

  In our commercial radioprotective compounds, fabrics and whole body suits, demron (TM) sold by Radiation Shield Technologies, Inc. of Miami, Florida, we usually have these radioprotective compounds as: A polymer mixture containing about 85% by weight radiation protection material and about 15% by weight polymer is used. The presently preferred radiation protection material combination used in the DEMRON ™ polymer mixture is tungsten (75%), barium sulfide (20%) and bismuth (5%). The presently preferred polymers used in the DEMRON ™ polymer mixture are ethyl vinyl acetate (EVA) and polyethylene. Presently preferred outer fabric layers used in DEMRON ™ are woven fabrics and nonwoven fabrics such as DuPont's flashspun polyethylene fibers Tyvek® and TyChem®. The use of Tyvek® and / or TyChem® fabric in demron ™ has the advantage that chemical and bioprotective properties are added to the radiation protection properties of demron ™.

  Similar to the commercially available DEMRON ™ product by the inventors, the polymer interlayer 60 shown in FIG. 2 includes several types of radiation protection materials 62, 64, 66, 68. These radiation protection materials 62, 64, 66, 68 may be, for example, barium compound 62, tungsten compound 64, bismuth compound 66, and iodine compound 68. By using a plurality of different radiation protection materials, the radiation protection article can be more effective at blocking different types of radiation compared to similar articles having only one radiation protection material. For example, some radiation protection materials may be more effective at blocking beta particles and other radiation protection materials may be more effective at blocking gamma radiation. By using both types of radiation protection materials in the radiation protection fabrics or other materials of the present invention, the article can have a great ability to block both beta particles and gamma rays.

  In this regard, it may be appropriate to consider the use of lead as one of the radiation protection materials for such mixed use and, more broadly, for the varieties given the plasticity disclosed herein. Absent. Lead is not as preferred as the other radiation protection materials listed above because it can be a health hazard, but nevertheless lead is in a plasticized radiation protection mixture or alternatively It will have a role in other plastic film applications.

  In applications where it is important to provide radiation protection clothing or articles with breathability, such as for surgical masks or when the full body suit is used in a particularly hot and humid environment, as shown in FIG. The two radiation protection layers 110 and 112 can be provided alternately with holes. As shown in FIG. 3, the two radiation protection layers 110, 112 are separated by a gap 114. The gap 114 can be filled with a highly porous woven or non-woven fabric such as a fabric (not shown) so that the gap 114 does not collapse. Both of the two radiation protection layers 110, 112 are perforated to create a pattern of holes 116, 118, 120. By shifting the holes 116, 118, 120 of the two sheets 110, 112 as shown in FIG. 3, essentially linearly moving radioactive particles are blocked in one of the at least two layers, while obstacles Air that can bend around can still pass through.

  In the same flow, to provide both the flexibility of fabric garments and the radiation protection of metal lead garments, the above-mentioned radiation protection materials or aluminum are formed into fibers and woven into clothing, or materials for normal clothing such as cloth Can be interwoven. In addition, radiation protective materials can be incorporated into various transparent plastics or glasses, for example to produce a transparent anterior eye shield 24 of the type shown in FIG. 1 having radiopaque properties. In another alternative embodiment, a sheet of radiation protective material, such as aluminum, that is not mixed can be perforated or inserted into the article to provide radiopacity without providing a hole. it can.

  FIG. 4 illustrates a second approach for enhancing radiation protection with a particular multi-layer configuration 80. Each layer 81, 82, 83 of this multilayer product 80 has a different thickness. A layer 81 of thickness may be able to block radiation 84 with certain wave characteristics, but may allow penetration of radiation 86 with different wave characteristics. However, by having additional layers of different thickness as the back-end of the first layer 81, the possibility of blocking different types of radiation regardless of their wave characteristics is increased. As a further example, the layers 81, 82, 83 may be composed of different radiation protection materials. For example, the present inventors have found that barium, tungsten and / or bismuth radiation protection materials provide cost effective protection against alpha and beta particles, but less protection against neutrons. In order to provide better protection against neutrons, the inventors have found that films that are densely packed with boron and / or beryllium radiation protection materials are most effective. Such boron and / or beryllium films may conveniently have about 50% by weight radiation protection material, and about 50% by weight polymer and additives. In order to provide cost-effective protection against alpha, beta, and neutron particles, an effective approach is to replace the polymer layer 81 with barium, tungsten, and / or bismuth compounds with boron and / or beryllium compounds. In combination with the polymer layer 82 having Furthermore, as will be appreciated by those skilled in the art, the different radiation protection materials 62, 64 shown in FIG. 2 are used to produce a radiation protection article that provides the maximum amount of radiation protection at a given weight and thickness. , 66, 68 are combined with the use of the different thickness layers 81, 82, 83 shown in FIG. 4 to achieve a synergistic effect.

  FIGS. 5A, 5B and 6 illustrate a wide variety of garments that can be formed from the hazard prevention films and fabrics of the present invention, and such garments are not limited to the full body suit 10 shown in FIG. Absent. For example, FIG. 5A shows a front view of a medical apron 130 made from the hazard prevention film and / or fabric of the present invention. The illustrated apron 130 covers a user's chest 132, upper arm 134, and neck 136 with a hazard prevention film or fabric such as the radiation protection cloth described above. As will be readily appreciated by those skilled in the art, the apron 130 can cover the surface of the body wider or narrower to provide the desired level of protection. A wrapping strap 138 is formed on the lower waist portion of the apron 130 so that the apron 130 can be securely fixed to the user's body. The wrapping strap 138 is conveniently provided with a hook and loop fastener (not shown) to hold the strap ends 139 firmly together.

  FIG. 5B shows a rear view of the medical apron 130 of FIG. 5A. This rear view shows how the wrapping straps 138 intersect at the back so that both ends 139 can meet on the front side of the apron 130. Further, this rear view shows the upper body connection strap 140 that keeps the apron tightly attached to the top of the user's torso. Again, a fastener (not shown) consisting of hooks and loops can be advantageously used to removably secure the upper body connection strap 140 to the medical apron 130. In the view of FIG. 5B, the open area 142 is left behind the medical apron 130, so that the entire apron can be more easily worn on the user's body. This region 142 is left open based on the assumption that the user's front and sides are at risk rather than the user's back. Of course, if the user's back is at risk, this area 142 should not be left open.

  FIG. 6 illustrates that the hazard prevention film and fabric of the present invention can be formed into a two-piece suit 150. The two-piece suit 150 includes a trouser 152, a jacket 154, and a hood 158 made from the hazard film and fabric of the present invention. A belt 156 can be used to hold the jacket 154 firmly against the pants 152. In addition, a gas mask 159 can be used to provide protection against inhalation of harmful gases. Compared to the full body suit 10 shown in FIG. 1, this two piece suit 150 is advantageous in military applications where flexibility is required. For example, on a hot day, soldiers wear only trousers 152 and belts 156 to remain cool, and jackets 154, hoods 158, and gas You may want to place the mask 159 nearby.

  FIGS. 7-10 show that the usefulness of the hazard prevention material of the present invention is not limited only to fabrics and clothing. For example, FIG. 7 shows how radiation protection material can be combined with a typical dry wall 120. In this case, the radiation protection material of the present invention, such as barium sulfate, tungsten, or bismuth, can be mixed with gypsum widely used in dry walls, then two layers 124 of cardboard, 126 can be inserted as an insert 122.

  Figures 8 and 9 further illustrate how the hazard prevention material of the present invention can be used in other architectural applications. For example, FIG. 8 shows a cross section of a type of wall body 160 that can be used in a house or other building. The wall body 160 includes a dry-type wall body 162, a heat insulating material 166, an outer wall 164, an outer wall draining paper 168, and a protective cover 169. The hazard prevention of the present invention can be combined with any or all of these layers of the wall. The combination of radiation protection to a common drywall has already been described with respect to FIG. In addition, a radiation protection material such as barium sulfate, tungsten, or bismuth can be mixed into the thermal insulation material 166 or can be attached to the thermal insulation material 166 by spraying. The protective covering 169 used in construction is often a polymer film such as Tyvek® from DuPont. As already described for our demron (TM) fabric, a high speed spun polyethylene fiber Tyvek (R) type fabric is laminated with a radiation protective polymer mixture on a Tyvek (R) type fabric. Radiation protection can be added. Similar lamination or other deposition methods can be used to add radiation protection to the materials commonly used for the outer wall 164 and outer wall draining paper 168.

  FIG. 9 shows how danger protection can be added to the foundation 170 of a house or other building. Such a foundation can be composed of reinforced concrete 174 on which a floorboard 172 and a wall 160 of a house or building are installed. For example, a radiation protection material such as barium sulfate, a tungsten compound, or a bismuth compound is mixed with the reinforced concrete 174 used for the foundation 170 to provide radiation protection against radon that exudes upward from the ground below. be able to. Alternatively, a layer 176 of film or fabric of the present invention can be inserted between the reinforced concrete 174 and the floorboard 172 of the foundation 170. These same principles can be used to protect a house or building roof (not shown) from penetration of solar radiation. In the case of a roof, the radiation protection material can be mixed with the outer roofing material (eg ceramic tile), laminated to the outer roofing material (eg roofing board), and / or Alternatively, a safety film or fabric 176 of the type shown in FIG. 9 can be inserted between the outer roofing material and the inner roof structure.

  FIG. 10 shows how the radiation protection compound composite of the present invention can be used to make injection molded objects. The injection molded object shown in FIG. 10 is a radiation measurement probe 180 that can be inserted into the ground and used to aid in the discovery of radioactive material deposits. The radiation measurement probe 180 includes a slidable outer cylinder 182, an inner housing 184, a detection window 188, and a flange 186 used as a stopper for the sliding outer cylinder 182. To date, the problem with such radiation measurement probes has been to introduce a significant amount of excess radiation through the outer tube 182 and the inner housing 184, with the detected radiation coming from the direction of the detection window 188. Whether or not it is difficult to reliably read. To overcome this problem, the outer cylinder 182, the inner housing 184, and the flange 186 can be constructed from a polymer mixture of the type that incorporates the radiation protection material described above. As already mentioned, in general, increasing the proportion of radiation protection material added to the mixture provides greater radiation protection, but if the proportion of radiation protection material is too high, it can be heavy when dried or cooled. The coalescence mixture becomes brittle and breaks easily. Thus, the proportion of polymer and radiation protection material should be selected to produce a robust probe when manufactured by an injection molding process, while containing a sufficient amount of radiation protection material to block background radiation. I must. By using the radiation protective polymer mixture of the present invention in the radiometric probe 180 of FIG. 10, the detected radiation passes through the window 188 with much higher accuracy than the radiation that has passed through the remainder of the probe 180. Will come from the radiation.

  Turning to FIG. 11, it can be used to provide protection against life-threatening dangers such as toxic chemicals, infectious biological agents, flames, and metal flying objects in addition to those caused by radiation. A cross-section 200 of the composite fabric is shown. As part of the protective composite fabric that addresses this plurality of hazards, there is a three-layer composite fabric (see FIG. 2) with the radiation protective polymer mixture 34, 36, 60 already described. Added to these three layers 34, 36, 60 are additional layers 210, 220, 230 that can prevent various hazards. For example, a non-porous chemical protection layer 210 and / or 220 can be added to the three radiation protection layers 34, 36, 60. This holeless chemical resistant layer may be a polymer film 210 laminated to the three radiation protection layers 34, 36, 60 and / or sewn to the three radiation protection layers or in some way. It may be a chemical protective cloth 220 to be affixed.

  The chemical protection layers 210 and 220 can be composed of known chemical protection polymers and / or fabrics. For example, one type of known chemical protective fabric is a non-woven fabric such as a high-speed spun polyethylene fabric sold by DuPont under the trade name Tyvek®, Kleengard (trademark) from Kimberly-Clark, Polypropylene fabrics such as Kappler's Proshield 1 (TM), Lakeland's Safeguard 76 (TM), polyethylene blends with polypropylene, DuPont's Sontara (TM) and Kimberly Clark's Prevail (TM), etc. Cellulose-based fabrics. The same type of non-woven fabric may be of a type in which a plastic film is laminated on both sides or one side of the non-woven fabric. CPF ™ and Responder series of fabrics, as well as Ready 1 fabric ™ from ILC Dover. These nonwoven fabrics are usually combined into three radiation protection layers 34, 36, 60 by stitching or otherwise affixing the fabric together.

  Chemical protection may also be imparted using chlorinated polyethylene films such as polyvinyl chloride and / or ILC Dover Chemturion ™. These films can be laminated to the three radiation protection layers 34, 36, 60 of the present invention or can be extruded onto the three radiation protection layers 34, 36, 60 of the present invention.

  Other types of chemical protection layers include fabrics such as Gore-tax (R), or DuPont's NexGen (TM), Kimberly Clark's Kleenguard Ultra (TM), Lakeland's Micro-Max (TM), And a polymer film having fine pores laminated to a polypropylene-based fabric such as Kappler's Proshield 2 ™. In addition, chemical protection can be provided by materials that combine absorbent layers, such as carbon / fabric combinations sold by Blucher GmbH and Lanx. Another type of chemical protective fabric is a woven fabric that is coated on one or both sides with rubber or plastic. These coated chemical protective fabrics include polyvinyl chloride and nylon composites, polyurethane / nylon composites, neoprene / aramid composites, butyl / nylon composites, chlorinated polyethylene / nylon composites, polytetrafluoroethylene (Ie, Teflon®) / glass fiber composites, and chlorobutyl / aramid composites.

  These chemical protection layers 210, 220 are preferably non-porous and will also provide protection against infectious biological agents.

  While the fabric shown in FIG. 11 can provide a wide range of protection simply by adding chemical protection layers 210, 220 to the three radiation protection layers 34, 36, 60, additional or alternative layers 210, 220, 230 can also be selected to prevent further hazards or to promote heat dissipation. For example, if the chemical protective layer 210 is a plastic laminate, the layer 220 of FIG. 11 can be another woven or non-woven layer, and the layer 230 can be a Nomex® refractory aramid manufactured by DuPont. It can be a flame protective layer, such as a layer made from fabric. Other types of refractory materials include Nomex® and Kevlar® aramid fabric combinations such as those sold by Southern Mills, melamine resin and aramid fiber combinations, polytetrafluoroethylene (ie, , Teflon (registered trademark)) and aramid fiber combination, rayon and aramid fiber combination, polybenzimidazole and aramid fiber combination, poly-p-phenylenebenzobisoxazole and aramid fiber combination, polyimide and aramid fiber combination, And Mylar ™ plastic film. Alternatively, layer 230 may be a protective layer against bullet and explosive debris made from bulletproof aramid and / or polyethylene fibers.

  Alternatively, it may be conceivable to form layer 230 from a heat dissipating material. One method for forming such a heat dissipation layer is a high thermal conductivity such as silver, copper, gold, aluminum, beryllium, calcium, tungsten, magnesium, zinc, iron, nickel, molybdenum, carbon, and / or tin. The material is mixed with the polymer in the same way that the radiation protection material is mixed with the polymer to form the radiation protection layer 60.

  Although FIG. 11 shows a six-layer safety cloth 200, those skilled in the art will readily understand that more than six or six layers can create a protective cloth against multiple dangers. It will be possible. For example, the woven or non-woven fabric layers 34, 36, and 220 shown in FIG. 11 can be omitted. Furthermore, it is also possible to combine different hazard prevention layers or heat dissipation layers together into one layer. For example, the radiation protection layer 60 of the present invention has been found to provide excellent heat dissipation properties per se, but these heat dissipation properties can be enhanced by strong heat such as silver, copper, and / or aluminum. Improvements can be made by adding a conductor to the radiopaque material mixture of the radiation protection layer 60.

  Turning now to FIG. 12, a bulletproof vest 300 having additional hazard prevention characteristics is shown. Many bulletproof vests 300 have a conventional design similar to that shown in Borgese US Pat. No. 4,989,266, the disclosure of which is hereby incorporated by reference herein. It shall be incorporated in the book. Anti-bullet protection is basically provided by a layer of polyethylene fibers 314 and / or aramid fibers 316. Commercially available polyethylene fabrics used in bulletproof vests include Honeywell's Spectra (TM) series of ultra high molecular weight polyethylene fabrics and Honeywell's Spectraguard (TM) ultra high molecular weight polyethylene fabrics further comprising glass fibers. Commercially available aramid fabrics used in bulletproof vests include DuPont's Kevlar (R) series aramid fabrics and Akzo's Twaron (TM) series aramid fabrics. In this preferred example, the bulletproof vest includes one or more aramid fiber layers 316 sandwiched between polyethylene fiber layers 314. More aramid fiber layers 314 and / or polyethylene fiber layers 316 are typically made to obtain a higher level of protection against bullets and explosive fragments. Additional strength can be created by overlapping layers of ballistic material in a 90 ° orientation and confining them between layers of thermoplastic material. Additional ceramics and plates can be added to provide a higher level of protection. The bulletproof vest 300 shown in FIG. 7 can preferably be kept in one piece by a jacket 312 into which the fabric is inserted.

  To add additional danger prevention to the bulletproof vest 300 shown in FIG. 12, an additional layer 320 of the type shown in FIG. 2, 4 or 11 can be inserted. In one embodiment, this additional layer 320 may be a composite radiation protection layer 50, 80 of the type shown in FIGS. By adding such radiation protection layers 50, 80 to the bulletproof vest, the bulletproof vest can achieve protection against radiation in addition to bullets and debris. Similarly, using a multi-layer fabric of the type described in connection with FIG. 11 can provide protection against flames, chemicals and / or biological agents. In the case of radiation protection only, it is usually desirable for the additional layer 320 to be located near the user's body to take advantage of the excellent heat dissipation properties of the radiation protection layers 50, 80 of the present invention. In contrast, in the case of fabrics that provide protection against flames, chemicals and / or biological agents, this layer is usually outside the bulletproof vest so that these contaminants do not penetrate into the bulletproof vest 300. It is desirable to be in the vicinity.

  FIGS. 13-20 illustrate various manufacturing techniques that can be advantageously used to produce the safety fabrics of the present invention. For example, FIG. 13 illustrates a manufacturing technique that is particularly suitable for mass production of a radiopaque fabric or other flat flexible material of the type shown in FIG. 2 for use in clothing or other articles. Yes. The process of FIG. 13 starts with one or more rolls 430, 432 consisting of a fabric or other flat flexible material 34, 36 to which the polymer mixture is to be applied. In this process, non-woven weights such as polypropylene, polyethylene, aramid, rayon, or any mixture thereof, as they bind well with liquid polymer mixtures and in some cases provide inherent protection against hazards. A combined fabric is preferred. Alternatively, this process may be accomplished using a woven fabric such as a cloth, or other flat flexible material such as paper or film. To enhance the ability of the fabric or other material 34, 36 to adhere to the polymer mixture, corona treatment may be applied to the fabric or other material by one or more corona treatment devices 438, 439.

  In this process, a liquid radiation protective polymer mixture is applied to one side of a nonwoven fabric or other material 34 by using an application unit 440. This application unit 440 is typically for applying a thin layer (eg, preferably 0.1-20 millimeters thick) of a liquid polymer mixture on one side of a drawn fabric or other material 34. A roller 442 is provided.

  After the application unit 440, the polymerized fabric 444 is preferably passed through a high temperature air furnace 446 in order to dry the thin layer of polymer mixture halfway before being sent to the lamination unit 488. In the laminating unit 448, the coated fabric 444 is preferably combined with a second fabric or sheet of other material 36 under heat and pressure to produce a sandwich radiation protection fabric 50. The sandwich radiation protective cloth or other material can then be perforated and / or embossed in a perforation / embossing unit 452 as desired. Subsequently, the finished radiation protection product is typically wound onto a final roll 454 for shipment to a suitable location for use in the manufacture of clothing or other articles. In the example of FIG. 4, two layers 34, 36 of fabric or other material are shown, but as an alternative, the polymer mixture can be applied to a single layer 34 of fabric or other material. Is also possible (ie a sandwich with one side open).

  FIG. 14 shows an improved version of the process shown in FIG. 13 in which a fabric with multiple hazard protection can be produced. Similar to FIG. 13, two rolls of fabric 430, 432 and application unit 440 can be used to produce a sandwich radiation protective cloth of the type shown in FIG. To provide protection against bullet or bomb debris, the two rolls of fabric 430, 432 may be bulletproof aramid and / or polyethylene fiber cloth rolls. A third fabric roll 470 and a second application unit 476 can be added to the process to provide other types of protection. The fabric of roll 470 is typically the same woven, non-woven, or bulletproof fabric as rolls 430 and 432. Thus, the second application unit 476 should preferably provide a liquid polymer mixture with another type of hazard prevention that is not radiation, such as protection against chemicals, biological agents or flames. Alternatively, the liquid polymer mixture from the second application unit 476 may deposit a heat dissipating layer having a strong heat conductor such as silver, copper or aluminum incorporated into the polymer mixture.

  In the laminating unit 484, a sandwich-like radiation protection cloth is combined with an additional layer 480 of danger prevention fabric to produce a composite fabric 490 having multiple types of danger prevention. This composite fabric 490 can then be perforated and / or embossed in a perforation / embossing unit 452, as desired, and subsequently wound onto a final roll 494. However, this perforation / embossing step should be avoided if the additional layer provides protection against chemicals and / or biological agents.

  Turning now to FIG. 15, a second general type of process for producing the safety fabric of the present invention is shown. In the process of FIG. 15, a polymer mixture material 570 is placed in a hopper 571 of a first extruder 572. In order to achieve radiation protection, the polymer mixture 570 preferably includes a polymer, one or more radiopaque materials, and one or more additives. In this process, these polymer mixture materials 570 can be placed in a hopper 571 in solid form. When the hopper 571 feeds the polymer mixture material 570 to the first extruder 572, the polymer mixture material is preferably heated to a viscous fluid state and mixed together by the rotational motion of the powered extruder screw 573. The When this powered extruder screw 573 extrudes the polymer mixture material from the first extruder 572, the combination of perforated plate and rotary cutter 574 cuts the exiting polymer mixture into pellets 575. These pellets 575 are then preferably introduced into the hopper 576 of the second extruder 577. Again, the polymer mixture is brought to a molten state by heating and powered screw 578. When the polymer mixture material is extruded from the extruder 577, now a notched plate 579 located at the end of the second extruder is used to extrude a thin film 600 of the liquefied polymer mixture. . This thin film is advantageously in the dimension of 0.1 to 20 millimeters in thickness. This thin layer 600 can also be produced by the first extruder 572 alone to simplify the process steps. However, omitting the second extruder 577 increases the likelihood that the polymer mixture will not be uniformly mixed prior to extrusion.

  As in the process shown in FIGS. 13 and 14, in the process of FIG. 15, the liquefied polymer mixture is preferably sandwiched between two sheets 590, 592 of fabric or other material. . As before, the fabric sheet is preferably drawn from the fabric rolls 594,596. Again, corona processors 596, 598 can be used to make the joining process more powerful. In this case, a thin film 600 of a liquid polymer mixture is simultaneously applied between both sheets 590, 592 of fabric or other material. Once the thin film 600 of the liquid polymer mixture is inserted between the two sheets 590, 592, the two sheets 590, 592 are then preferably compressed and heated between the rollers of the lamination unit 602. Perforation and / or embossing is performed in the perforation / embossing unit 604 as desired. Subsequently, the finished radiation protection cloth or other material 606 can be wound onto a final roll 608 for convenient storage.

  FIGS. 16 and 17 show an improved version of the process shown in FIG. 15 in which fabrics with protection against multiple hazards can be produced. Similar to the process of FIG. 15, the process of FIG. 16 includes an extruder 622 for producing a radiation protection film 626. This radiation protection film can be created by placing the polymer mixture material 620 in the hopper 621. As before, the polymer mixture preferably comprises a polymer, one or more radiopaque materials, and one or more additives. A hopper 621 feeds the polymer mixture material 620 to the extruder 622. In the extruder 622, the polymer mixture material is preferably heated to a viscous fluid state and mixed together by the rotational motion of the powered extruder screw 623. When the polymer mixture material is extruded from the extruder 622, a notched plate 624 located at the end of the extruder is used to extrude a thin film 626 of liquid polymer mixture. If desired, a front extruder similar to the extruder 572 of FIG. 15 can be used to ensure more uniform mixing of the polymer mixture disposed within the hopper 621 of the extruder 622. .

  Unlike the process of FIG. 15, the second extruder 632 of the process of FIG. 16 is in parallel with the first extruder 622 to simultaneously produce a second film 636 that is combined with the first film 626 of radiation protection. Is arranged. Preferably, the film 636 produced by the second extruder 632 provides a different type of hazard prevention than the film produced by the first extruder 622. For example, the first extruder 622 can be advantageously used to produce a radiation protection film 626, while the second extruder 632 produces a protective film 636 for complementary chemicals, biological agents or flames. It can be used as conveniently as possible. To produce this complementary film 636, different types of polymer mixtures are loaded into the hopper 631, heated to a liquid form, and mixed together by the rotational motion of the powered extruder screw 633. When the powered extruder screw 633 extrudes this other polymer mixture material from the extruder 632, the notched plate 634 located at the end of the extruder 632 is a thin film 636 of liquid polymer material. Used to extrude.

  The liquid polymer films 626, 636 from the two extruders 622, 632 are then preferably integrated when sandwiched between two sheets 590, 592 of fabric or other material. As before, the fabric sheet is preferably drawn from the fabric rolls 594,596. Again, corona processors 596, 598 can be used to make the joining process more powerful. Once the composite film 638 is inserted between the two sheets 590,592, the two sheets 590,592 are subsequently compressed and heated, preferably between the rollers of the lamination unit 602, as desired. Thus, the punching / embossing unit 604 punches and / or embosses. The finished multiple hazard protection products 640 can then be wound onto a final roll 650 for convenient storage.

  FIG. 17 illustrates how the principles of FIGS. 13-16 can be used to fabricate fabrics having any number of hazard prevention properties. The process of FIG. 17 starts with a roll 656 of fabric or other material. A sheet 658 is drawn from the fabric roll 656 and used as a substrate for depositing a polymer layer from the extruder 660. As an example, the sheet 658 may be a bullet and bomb strip protective fabric made from aramid and / or polyethylene fibers, and the polymer layer 661 may be one of the radiation protective polymer mixtures described above. Alternatively, the sheet 658 may be a high speed spun polyethylene, polyvinyl chloride, or polypropylene chemical protective cloth, or a chemical or fire resistant cloth such as an aramid fire resistant cloth. A second extruder 670 can then be used to add an additional layer of hazard prevention material, such as a chemical or bioagent-protected polymer layer, to the fabric 664 being manufactured. Subsequently, as the fabric under production moves forward, a third extruder 680 can be used to add a third type of hazard prevention polymer 681, such as a refractory or heat dissipation polymer. As will be readily appreciated by those skilled in the art, the process is continued with as many extruders as necessary to provide all the desired hazard prevention properties. After depositing all desired polymer layers, the composite fabric is heated and compressed in the lamination unit 682. The final safety fabric 684 is then wound on a roll 690 for convenient storage and use.

  Turning now to FIG. 18, a process for forming a self-supporting film of a hazard-preventing polymer that does not need to be applied to a fabric or other material is shown. Similar to the process of FIGS. 15-17, this protective film process preferably starts by placing a suitable polymer mixture 732 in the hopper 734 of the extruder 730. In order to produce a radiation protection film, the polymer mixture 732 preferably consists of a polymer, one or more radiation protection materials, and any suitable additives. As the hopper 734 feeds the polymer mixture to the extruder 730, the polymer mixture is heated to a viscous fluid state and agitated by a powered extruder screw 736. When the polymer mixture is extruded from the extruder 730 by a powered extruder screw 736, a notched plate 738 located at the end of the extruder produces a film 740 of radiation protective polymer, which is an endless conveyor. Deposited on belt 742 and cooled. The annular conveyor belt 742 preferably has a polished metal or Teflon coating to prevent film from adhering to the conveyor belt 742 more than necessary. Fans, blowers, or cooling units (not shown) may be used to speed up the cooling process. When the protective film 740 is sufficiently cooled, it can be wound on a final roll 744 for convenient storage. The final roll 744 of hazard protection film is then applied to any number described herein, including the manufacture of clothing, tents, packaging materials, wallpaper, lining, house paneling, house roofing, house foundations, etc. Can be used for applications.

  FIG. 19 shows a modification of the process shown in FIG. Similar to the process of FIG. 18, the process of FIG. 19 begins with placing the polymer mixture 732 in the hopper 734 of the extruder 730. As the hopper 734 feeds the polymer mixture to the extruder 730, the polymer mixture is again heated and stirred by the powered extruder screw 736. However, at this time, preferably the polymeric material is heated to the viscosity of the paste rather than in a viscous fluid state. When the powered extruder screw 736 pushes the polymer mixture 748 out of the extruder 730, a notched plate 738 located at the end of the extruder also produces a film 748 of a risk-protecting polymer, which is an annular conveyor belt. 742 is deposited. This time, the paste-like film 748 exiting the annular conveyor belt 742 is fed to calendar rolls 750 and 752, and the calendar rolls 750 and 752 simultaneously heat and compress the paste-like film 748. During this calendering process, the polymer molecules are usually cross-linked to form longer molecular chains, resulting in a stronger material. After leaving the calender rolls 750, 752, the finished film 754 is pulled by take-up rollers 755, 756 and then wound onto a final roll 758, preferably for convenient storage and later use.

  FIG. 20 shows an improved version of the process of FIG. 19, which can be used to produce a free-standing film that can provide protection against multiple hazards. Similar to the process of FIG. 19, the process of FIG. 20 includes the use of an extruder 730 to heat and agitate the polymer mixture 732 into the pasty film 748. In a preferred embodiment, the pasty film 748 is a polymer having radiation protection properties. As in the process of FIG. 19, this pasty film 748 is fed to calender rolls 750, 752, which simultaneously heat and compress pasty film 748. After leaving the calendar rolls 750, 752, the film 754 is pulled by take-off rollers 755, 756, 758 and forwarded to the second set of calendar rolls 850, 852. In the second set of calendar rolls, the film 754 is combined with the second film 810 produced by the second extruder 800. As already mentioned, the second extruder 800 preferably produces a film 810 with different types of hazard protection, such as protection against chemicals, biological agents, flames, or heat. In the second set of calendar rolls, the two films 754, 810 are heated and compressed together. The composite film 854 is then pulled by a second set of take-up rollers 854, 855, 858 and wound onto a final roll 870, preferably for convenient storage and later use.

  The processes described above for the manufacture of hazard protection fabrics or films have required a polymer mixture. However, such a polymer is not always necessary, at least in the context of providing radiation protection. For example, radiation protection can be applied to many types of fabrics, including cloth and paper, and the fabrics can be used to form radiation protection materials such as barium sulfate, or reagents used to form such radiation protection materials such as barium chloride and sulfuric acid reagents. It can be applied by dipping or exposing to a concentrated solution. In the case of barium sulfate, this solution is conveniently an aqueous solution of 1 or 2 molar barium sulfate precipitates (although other concentrations will work). After the barium sulfate precipitate has been given the opportunity to completely soak into the fabric (eg, by soaking overnight), the fabric can be removed from the aqueous barium sulfate solution and dried with air. Drying can also be performed using a drying lamp or a microwave oven assembly. Since barium sulfate can block radiation, impregnation of the fabric with barium sulfate can provide radiation blocking capability while still allowing breathability.

  Various additives can be advantageously used to improve the efficiency of the impregnation process. These additives may include adhesives, fixatives and / or emulsifiers to enhance the adhesion of the radiation protection material and / or increase the concentration of the solution of radiation protection material. For example, an adhesive such as Gum Arabic or Guar Gum can be added to the barium sulfate solution already described to increase the concentration of the solution and enhance the adhesion of barium sulfate to the fabric. Alternatively, the adhesive can be added to the fabric rather than the barium sulfate solution. The pretreated fabric can then be immersed or exposed to a barium sulfate solution.

  In addition to dipping or exposing to a solution containing the radiation protection material, other techniques may be used to impregnate the fabric with the radiation protection material of the present invention. If the radioprotective material is present in the solution in the form of particles (eg, as a precipitate), one alternative method is that the radiopaque solution is smaller in size than the particles of radiopaque material. Is to select a fabric having pores that are larger in size than the solvent used (eg, water or alcohol). The radiopaque solution can then be passed through the fabric in such a way that the fabric functions as a filter and filters out the radiopaque particles while allowing the solvent to pass through. In the case of an aqueous solution containing a barium sulfate precipitate, the pore size of the filter should be on the order of 2 microns and should correspond to a Whatman pore size of # 5. Similarly, a solution of radiopaque particles can be sprayed onto the fabric. Again, after the fabric is sufficiently impregnated with a radiopaque material, it can be dried and assembled into clothing or other types of articles.

  In another embodiment of radiation protection without the use of a polymer, the reaction chamber can be fabricated with a pair of reagent solutions on both sides and a fabric in the center. In the case of barium sulfate radiopaque compounds, the reagents may be barium chloride and sulfuric acid, respectively. In this barium sulfate example, since barium chloride is naturally attracted to sulfuric acid, a chemical reaction occurs between barium chloride and sulfuric acid, leaving a precipitate of barium sulfate in the fabric.

  In a further alternative to radiation protection without the use of a polymer, the fabric is formed by incorporating one reagent into the fabric (eg, as a compound or free radical) and then exposing to the other reagent, resulting in radiation. An impervious impregnation can be produced. Again, in the case of a barium sulfate radiopaque compound, it is convenient to expose the fabric to the other compound to form barium or sulfate as part of the fabric and then produce an impregnation of barium sulfate. is there.

  In the foregoing specification, the invention has been described with reference to several specific preferred embodiments and methods. However, it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the broad spirit and scope of the invention as set forth in the appended claims. For example, many preferred embodiments relate to the production of protective garments. However, those skilled in the art are aware that protection against radiation, chemicals, biological agents, metal projectiles and flame hazards is also required in many other contexts. For example, a flexible protective fabric of the type described in this application can be used as a backing material in, for example, a vehicle, an X-ray scanning device, an X-ray room, or an aircraft cabin. Alternatively, the radiation protection cloth or other material of the present invention can be formed into an envelope or sachet to protect sensitive materials (eg, photographic film, electronic equipment) from damage. Furthermore, because lead toxicity is a real concern, the radiation protection material of the present invention is used to replace lead in many current lead applications, including solder used in printed wiring boards. be able to. As yet another example, the radiopaque material of the present invention can be finely ground and blended into a rubber product or oil-based paint. Emulsifiers, binders or suspending agents may be added to such paints in order to keep the radiation protection material well mixed so that it does not precipitate out of the solution, emulsion or suspension. . With the addition of such radiation protection materials, it is possible to paint or coat radiation protection on all kinds of surfaces in order to provide protection from radiation hazards.

  One skilled in the art can readily understand that the principles and techniques described in this application can be applied to any field where radiation, harmful chemicals, infectious biological agents, metal flying objects, or flames exist. Let's go. The specification and drawings are accordingly to be regarded in an illustrative manner and are not intended to limit the invention, which is limited only by the scope of the appended claims.

Claims (1)

Invention described in the specification.

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