CA1188851A - Protective suit - Google Patents
Protective suitInfo
- Publication number
- CA1188851A CA1188851A CA000417406A CA417406A CA1188851A CA 1188851 A CA1188851 A CA 1188851A CA 000417406 A CA000417406 A CA 000417406A CA 417406 A CA417406 A CA 417406A CA 1188851 A CA1188851 A CA 1188851A
- Authority
- CA
- Canada
- Prior art keywords
- protective garment
- absorbing layer
- micro
- porous film
- carrier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 21
- 230000004888 barrier function Effects 0.000 claims abstract description 21
- 239000004753 textile Substances 0.000 claims abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 9
- 239000004744 fabric Substances 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 7
- -1 polytetrafluoroethylene Polymers 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 230000035699 permeability Effects 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920006264 polyurethane film Polymers 0.000 claims description 3
- 239000002085 irritant Substances 0.000 claims description 2
- 231100000021 irritant Toxicity 0.000 claims description 2
- 230000005855 radiation Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims 2
- 238000009792 diffusion process Methods 0.000 abstract 1
- 239000012982 microporous membrane Substances 0.000 description 9
- 230000004224 protection Effects 0.000 description 8
- 239000007788 liquid Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000037081 physical activity Effects 0.000 description 1
- 229940058401 polytetrafluoroethylene Drugs 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/02—Physical, chemical or physicochemical properties
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B17/00—Protective clothing affording protection against heat or harmful chemical agents or for use at high altitudes
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D5/00—Composition of materials for coverings or clothing affording protection against harmful chemical agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/024—Woven fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/10—Fibres of continuous length
- B32B2305/18—Fabrics, textiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
- B32B2307/7242—Non-permeable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/726—Permeability to liquids, absorption
- B32B2307/7265—Non-permeable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2437/00—Clothing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2571/00—Protective equipment
- B32B2571/02—Protective equipment defensive, e.g. armour plates or anti-ballistic clothing
Landscapes
- Health & Medical Sciences (AREA)
- Emergency Management (AREA)
- Business, Economics & Management (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Toxicology (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Textile Engineering (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Laminated Bodies (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Professional, Industrial, Or Sporting Protective Garments (AREA)
Abstract
Abstract A protective suit is constructed of two layers, one of which forming an outer drop barrier consisting of a possible textile carrier laminated with a micro porous watertight film that is open to diffusion, and an inner gas absorbing layer known per se.
Description
35~
, --T]le preSell-t illVellt-iOIl relatcs to a protective clothing system which combines hicJh protec-tive ability ayains-t skin penetrating means oE chemiccll warEare, good airtightness and wa-tertigh-tness wi-th low physiological strain on the user.
The previously known air permeable protective suits have a composition resulting from a compromise between differen-t requirements, as:
lligh protective capabili-ty against skin penetrating means of chemical warfare or other skin irritants, and the requirement that the soldier shouJd be able to keep up physical activities during a certain period of time.
Such a suit is described in NO-PS 12~ 694 which corresponds to US-PS 3 813 507.
Chemical pro-tection is essentially achieved by use of two barriers, a drop barrier and a gas barrier. The outer layer of the suit, its drop barrier, will intercep-t drops and pre-ven-t liquid from pene-trating further into the clothing system. The vapors from drops deposited on the outer layer will diffuse into -the suit and are intercepted by the gas barrier, an absorbent, e.g. bonded activated carbon. The two barriers are separated by an air layer.
Since it is also desirable to make the suit highly permeable to water vapor in order to reduce the physiological strain on the soldier, the fabric of the ou-ter layer cannot be made so dense tha~ it completely prevents large drops striking the outer layer with high velocity Erom penetrating the drop - barrier. In such cases the liquid will rapidly saturate the absorption layer beneath eliminating the protec-tive effect of the suit.
Said suits only offer sufficient protection when used outside the normal field service uniform, and -they mus-t be replaced by new ones a certain time after con-tamination.
.~.L~ S~
The presel1t inventLol1 provi(les a cLothil1cJ system which -to a high degree solves several of -the prohlems of -the known air permeable protective suits.
Said suit comprises a drop barrier outside a gas barrier, separa-ted by an air layer.
Said drop barrier consists of a micro porous membrane tha-t is laminated with a carrier fabric, the carrier fabric form-ing the outside. The carrler fabric imparts wear resistance and mechanical stability to the ou-ter layer and may be treated so as to provide the sui-t wi~h other qualities, as colour, flame baffling, etc. Said micro porous membrane has pores of such a maynitude that they let throucJh water vapor, but not water, so as -to providecJoc~d water vapor -transmission and enable the soldier to ventilate excessive heat. At the same time said membrane will completely prevent liquid from penetrating the outer layer - even large drops having high collision energy and drops -tha-t could otherwise be Eorced -through the outer layer. Due to the fact -that said micro - -- porous membrane keeps the drops back in the ou-ter layer, the outer fabric may be subjected to a -treatment tha-t makes drops spread over a larger surface area. Evapora-tion to -the atmos-phere is, thus, enhanced, the load on -the absorption layer -inside is reduced and the hazard oE contact, which the contaminated surface constitu-tes, is considerably reduced.
By a micro porous membrane is mean-t a film, e.g. a polytetra-fluoroethylene, polyethylene, polyurethane film having through 30 pores of a magnitude of 0.1-3.0 ~L, a pore number of 0.5 x 106 - l.5 x lO9/cm, water vapor permeability: approx. 3000 g/m2/2~h, and showing no indications of penetration measured according to ISO/DIS 6530.
If protection against heat radiatiol1 is desired, this may be achieved by the use of a micro porous membrane having a high melting point and a white colour for ~ood heat reflec-tion.
~8~
Underneath the outer layer/lllicro yorous membra11e -the normal gas barrier is provided. 'rhe drop barrier and the gas barrier may be two separate pieces of clothing that can also be re-placed separa-tely. The system does not require use of -the regular field service uniform to provide the necessary pro-tec-tion.
The advantayes of -the present invention as compared with the previously known sys-tems are -that -the micro porous membrane imparts considerable water vapor transmisslon to the suit and, thus, low physiological strain on -the user.
The resul-ting suit is airtigh-t and watertight.
It provides very high protection agains-t means of chemical warfare due to the fac-t that drops canno-t penetrate -to the absorbing layer beneath, even under pressure. The absorbing layer is only subjected to vapors from liquid deposits on -the outer layer.
~- - The micro porous membrane permits the outer layer to be pro-vided with an impregnation that will spread drops of means of chemical warfare on -the outside of -the suit. In this man-ner evaporation -to the atmosphere is enhanced, which red~ces the load to-tally as well as locally on the gas barrier. The lifetime of the absorbing layer is increased.
Spreadiny of drops on the outer layer results in consider-able reduction of the contact hazard which the contaminated surface of the sui-t would otherwise constitute. This has considerable operative advan-tages.
The outer fabric and -the absorbing layer being impregnated to a flame baffling sta-te and the micro porous membrane at the same time having a high mel-ting point and excellent heat reflection due to its white colour, protection against pyrotechnical weapons and hea-t radia-tion has been achieved as well.
. .
The sui-t does not requ:ire the norma] field service uniEorm to be worn underneath to impart the necessary pro-tection.
The principle of the micro porous membrane for a drop barrier over an absorp-tlon layer may also be utill~ed for protection of hands and feet against chemical warfare and at the same time to transport perspiration.
The invention is not exclusively in-tended for military use;
0 it may also be useful for protective suits e. g. in indust-rial and similar environments.
,
, --T]le preSell-t illVellt-iOIl relatcs to a protective clothing system which combines hicJh protec-tive ability ayains-t skin penetrating means oE chemiccll warEare, good airtightness and wa-tertigh-tness wi-th low physiological strain on the user.
The previously known air permeable protective suits have a composition resulting from a compromise between differen-t requirements, as:
lligh protective capabili-ty against skin penetrating means of chemical warfare or other skin irritants, and the requirement that the soldier shouJd be able to keep up physical activities during a certain period of time.
Such a suit is described in NO-PS 12~ 694 which corresponds to US-PS 3 813 507.
Chemical pro-tection is essentially achieved by use of two barriers, a drop barrier and a gas barrier. The outer layer of the suit, its drop barrier, will intercep-t drops and pre-ven-t liquid from pene-trating further into the clothing system. The vapors from drops deposited on the outer layer will diffuse into -the suit and are intercepted by the gas barrier, an absorbent, e.g. bonded activated carbon. The two barriers are separated by an air layer.
Since it is also desirable to make the suit highly permeable to water vapor in order to reduce the physiological strain on the soldier, the fabric of the ou-ter layer cannot be made so dense tha~ it completely prevents large drops striking the outer layer with high velocity Erom penetrating the drop - barrier. In such cases the liquid will rapidly saturate the absorption layer beneath eliminating the protec-tive effect of the suit.
Said suits only offer sufficient protection when used outside the normal field service uniform, and -they mus-t be replaced by new ones a certain time after con-tamination.
.~.L~ S~
The presel1t inventLol1 provi(les a cLothil1cJ system which -to a high degree solves several of -the prohlems of -the known air permeable protective suits.
Said suit comprises a drop barrier outside a gas barrier, separa-ted by an air layer.
Said drop barrier consists of a micro porous membrane tha-t is laminated with a carrier fabric, the carrier fabric form-ing the outside. The carrler fabric imparts wear resistance and mechanical stability to the ou-ter layer and may be treated so as to provide the sui-t wi~h other qualities, as colour, flame baffling, etc. Said micro porous membrane has pores of such a maynitude that they let throucJh water vapor, but not water, so as -to providecJoc~d water vapor -transmission and enable the soldier to ventilate excessive heat. At the same time said membrane will completely prevent liquid from penetrating the outer layer - even large drops having high collision energy and drops -tha-t could otherwise be Eorced -through the outer layer. Due to the fact -that said micro - -- porous membrane keeps the drops back in the ou-ter layer, the outer fabric may be subjected to a -treatment tha-t makes drops spread over a larger surface area. Evapora-tion to -the atmos-phere is, thus, enhanced, the load on -the absorption layer -inside is reduced and the hazard oE contact, which the contaminated surface constitu-tes, is considerably reduced.
By a micro porous membrane is mean-t a film, e.g. a polytetra-fluoroethylene, polyethylene, polyurethane film having through 30 pores of a magnitude of 0.1-3.0 ~L, a pore number of 0.5 x 106 - l.5 x lO9/cm, water vapor permeability: approx. 3000 g/m2/2~h, and showing no indications of penetration measured according to ISO/DIS 6530.
If protection against heat radiatiol1 is desired, this may be achieved by the use of a micro porous membrane having a high melting point and a white colour for ~ood heat reflec-tion.
~8~
Underneath the outer layer/lllicro yorous membra11e -the normal gas barrier is provided. 'rhe drop barrier and the gas barrier may be two separate pieces of clothing that can also be re-placed separa-tely. The system does not require use of -the regular field service uniform to provide the necessary pro-tec-tion.
The advantayes of -the present invention as compared with the previously known sys-tems are -that -the micro porous membrane imparts considerable water vapor transmisslon to the suit and, thus, low physiological strain on -the user.
The resul-ting suit is airtigh-t and watertight.
It provides very high protection agains-t means of chemical warfare due to the fac-t that drops canno-t penetrate -to the absorbing layer beneath, even under pressure. The absorbing layer is only subjected to vapors from liquid deposits on -the outer layer.
~- - The micro porous membrane permits the outer layer to be pro-vided with an impregnation that will spread drops of means of chemical warfare on -the outside of -the suit. In this man-ner evaporation -to the atmosphere is enhanced, which red~ces the load to-tally as well as locally on the gas barrier. The lifetime of the absorbing layer is increased.
Spreadiny of drops on the outer layer results in consider-able reduction of the contact hazard which the contaminated surface of the sui-t would otherwise constitute. This has considerable operative advan-tages.
The outer fabric and -the absorbing layer being impregnated to a flame baffling sta-te and the micro porous membrane at the same time having a high mel-ting point and excellent heat reflection due to its white colour, protection against pyrotechnical weapons and hea-t radia-tion has been achieved as well.
. .
The sui-t does not requ:ire the norma] field service uniEorm to be worn underneath to impart the necessary pro-tection.
The principle of the micro porous membrane for a drop barrier over an absorp-tlon layer may also be utill~ed for protection of hands and feet against chemical warfare and at the same time to transport perspiration.
The invention is not exclusively in-tended for military use;
0 it may also be useful for protective suits e. g. in indust-rial and similar environments.
,
Claims (12)
OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A protective garment to protect a wearer against skin penetrating means of chemical warfare and skin irritant industrial gasses comprising an outer drop barrier having an exterior carrier and a micro-porous watertight film which permits water vapour to pass therethrough and an interior absorbing layer containing a material which absorbs the vapours of skin penetrating means of chemical warfare which penetrate the drop barrier, said absorbing layer permitting water vapour to pass therethrough.
2. A protective garment as claimed in claim 1 wherein said exterior carrier is a textile fabric to partially protect the micro-porous film from mechanical stress.
3. A protective garment as claimed in claim 1 including an air layer separating said drop barrier and said absorbing layer.
4. A protective garment as claimed in claim 1, 2 or 3 wherein said absorbing layer includes a carrier which is coated with said material for absorbing vapours of skin penetrating means of chemical warfare.
5. A protective garment as claimed in claim 1, 2 or 3 wherein said absorbing layer includes a carrier which is coated with activated carbon for absorbing vapours.
6. A protective garment as claimed in claim 1 or 2 wherein said drop barrier and said absorbing layer are laminated together.
7. A protective garment as claimed in claim 1, 2 or 3 wherein said drop barrier and said absorbing layer form separate units.
8. A protective garment as claimed in claim 1, 2 or 3 wherein said micro-porous film is white to increase reflection of heat radiation.
9. A protective garment as claimed in claim 1, 2 or 3 wherein said micro-porous film has pores of a magnitude of .1 to 3.0? , a pore number of .5 x 106 to 1.5 x 109/cm and an approximate water permeability of 3000 g/m2/24h.
10. A protective garment as claimed in claim 1, 2 or 3 wherein said micro-porous film is selected from the materials comprising polytetrafluoroethylene, polyethylene and polyurethane film.
11. A protective garment as claimed in claim 1, 2 or 3 wherein said mircro-porous film has pores of a magnitude of .1 to 3.0?, a pore number of .5 x 106 to 1.5 x 109/cm.
and an approximate water permeability of 3000 g/m2/24h and wherein said micro-porous film is selected from the materials comprising polytetrafluoroethylene, polyethylene and polyurethane film.
and an approximate water permeability of 3000 g/m2/24h and wherein said micro-porous film is selected from the materials comprising polytetrafluoroethylene, polyethylene and polyurethane film.
12. A protective garment as claimed in claim 1, 2 or 3 wherein said exterior carrier is a textile fabric, and is treated to spread drops of means of chemical warfare which land thereon.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO81.4247 | 1981-12-11 | ||
| NO814247A NO814247L (en) | 1981-12-11 | 1981-12-11 | PROTECTIVE SUIT. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1188851A true CA1188851A (en) | 1985-06-18 |
Family
ID=19886343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000417406A Expired CA1188851A (en) | 1981-12-11 | 1982-12-10 | Protective suit |
Country Status (4)
| Country | Link |
|---|---|
| CA (1) | CA1188851A (en) |
| IT (1) | IT1210959B (en) |
| NO (1) | NO814247L (en) |
| WO (1) | WO1983002066A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU636754B2 (en) * | 1990-06-29 | 1993-05-06 | W.L. Gore & Associates, Inc. | Protective materials |
| GB9121868D0 (en) * | 1991-10-15 | 1991-11-27 | Freudenberg Nonwovens Ltd | Protective material |
| DE4310110A1 (en) * | 1992-07-07 | 1994-01-13 | Kaercher Gmbh & Co Alfred | Multi-layer, textile, gas-permeable filter material against chemical pollutants |
| DE19501433A1 (en) * | 1995-01-19 | 1996-07-25 | Bundesrep Deutschland | Use net-like flexible spacer in chemical protective clothing |
| DE19732205C2 (en) * | 1997-07-26 | 1999-06-02 | Bundesrep Deutschland | Jacket part of an ABC protective suit |
| NO317232B1 (en) * | 2003-02-24 | 2004-09-20 | Forsvarets Forsknings | Protective Apparel |
| US7704598B2 (en) | 2004-05-26 | 2010-04-27 | Gore Enterprise Holdings, Inc. | Durable covering for chemical protection |
| US7631364B2 (en) * | 2004-07-28 | 2009-12-15 | Gore Enterprise Holdings, Inc. | Protective garment ensemble |
| JP5964435B2 (en) * | 2011-09-30 | 2016-08-03 | テイコク ファーマ ユーエスエー インコーポレーテッド | Transdermal patch disposal system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1173142A (en) * | 1965-09-20 | 1969-12-03 | Sec Dep For Defence London | Improvements in the making of Protective Clothing Material |
| GB1127581A (en) * | 1966-01-04 | 1968-09-18 | Bondina Ltd | Protective clothing |
| CA1172919A (en) * | 1980-04-09 | 1984-08-21 | Walther G. Grot | Protective clothing of fabric containing a layer of highly fluorinated ion exchange polymer |
-
1981
- 1981-12-11 NO NO814247A patent/NO814247L/en unknown
-
1982
- 1982-12-10 CA CA000417406A patent/CA1188851A/en not_active Expired
- 1982-12-10 IT IT8224699A patent/IT1210959B/en active
- 1982-12-13 WO PCT/NO1982/000060 patent/WO1983002066A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IT8224699A0 (en) | 1982-12-10 |
| NO814247L (en) | 1983-06-13 |
| WO1983002066A1 (en) | 1983-06-23 |
| IT1210959B (en) | 1989-09-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEC | Expiry (correction) | ||
| MKEX | Expiry |