JPH07506295A - improved microwave hot melt dispenser - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Name of the invention: Improved microwave hot melt dispenser [Technical field] The present application describes a hot-spot method using microwave energy by NOTTINGHALL et al. Method of Heating and Dispensing Tomelt Materials (Correction)'° August 6, 1990 This is a partial continuation of U.S. Patent Application Box No. 0711562.518 filed in No. 5,188,256. This application was also filed on the same day as the present application. ``Hot melt materials using microwave energy'' Nottinghall et al. application entitled Invention Apparatus and Method for Dispensing °' Generally speaking, the present invention relates to a microwave hot melt adhesive. and concerning improvements in the design and construction of equipment for and other heat-sensitive materials. The device is a microphone a dispenser heated by radio wave energy and then used to dispense material Contains sir. Dispensers, in particular, convert microwave energy into heat and of heat into materials that can be distributed in a more effective and/or safer manner. Designed. When the dispenser heats above the scheduled initial temperature, the solid state or a high viscosity state to a low viscosity state, thereby causing the material to change to a low viscosity state Special for heating and dispensing materials (e.g. hot melt adhesives) that can be dispensed with It is useful for

[Background of the invention] Hot melt adhesives are typically used with a pot melt adhesive applicator (glue). gun). These glue guns have an electrical connection to the glue gun. In order to continuously apply power and thereby melt the glue in the glue gun, Designed to connect to a wall socket with an electrical cord and plug. child This is done by connecting the glue gun to a physically accessible range or wall socket. This means that it is determined by the length of the electrical cord used. Additionally, use a glue gun The cord sometimes presents a physical obstruction to the operator.

A cordless glue gun was planned to solve these problems. cordless The glue gun can be operated without an electrical cord by removing the glue from the power source. It's Lugan. In the design of cordless glue guns, the support structure of the gun Important considerations need to be made. The support structure must conveniently support the glue gun. The glue gun must also be electrically energized while it is on the support structure. The support structure and the glue gun can be heated. When you are about to use it, conveniently pull the glue gun away from the supporting structure and from the power source. It is necessary to design it so that it can be separated. Support structures for this purpose is a socket that transfers electrical energy to the glue gun and a socket that transfers the glue gun from the support structure. It includes a mechanism that allows it to be separated from the socket when removed.

Despite improvements in cordless glue guns becoming regular glue guns, cordless glue guns The Sugrugan still has its drawbacks. Cordless glue gun uses continuous electric power does not require heating, but is first heated electrically while held in a supporting structure. Intermittent electrical application is required to keep the hot melt adhesive at a low viscosity. Requires heat. Additionally, both regular glue guns and cordless glue guns Other shapes of bulky adhesives such as hot melt adhesive sticks have to be inserted into the glue gun. Must be. This is in addition to purchasing the glue gun itself. Treat hot melt adhesive before purchasing adhesive and using each glue gun. I need. Additionally, both regular glue guns and cordless glue guns have bulk. Glue, relatively expensive to buy, and a relatively long preheating time before the glue is dispensed , and require a relatively long cooling time before storage.

Significant improvements and innovations in the dispensing of heat-sensitive materials, especially hot melt adhesives, The above-mentioned US paper by Nottinghan+ et al., whose content is introduced in this continuation-in-part application This was done in National Patent No. 5,188,256. In particular, Nottingham et al. Changes from solid state or high viscosity state to low viscosity state when heated above temperature The first material, when subjected to microphone four-wave energy for at least a predetermined amount of time, a second material adapted to be heated above a constant temperature, the first material and the second material; and a container for storing the first material when the first material is in a low viscosity state. Dispensers are described for heat-sensitive materials containing an outlet for dispensing heat-sensitive materials. So In certain embodiments described herein, the hot melt adhesive has an inner surface that is It is housed in a container coated with chroma-sensitive material.

[Brief explanation of the drawing] FIG. 1 shows a dispenser and its cover constructed in accordance with the principles of the invention. FIG.

FIG. 2 is a cross-sectional view of the dispenser and cover of FIG. 1 perpendicular to the axis of the cover.

FIG. 3 is a cross-sectional view of the dispenser and its cover similar to FIG. FIG. 3 is a cross-sectional view in which a third material is added between the first material and the second material within the sensor.

FIG. 4 is a cross-sectional view of the dispenser of FIG. 2 taken along line 4--4.

FIG. 5 shows a dispenser and its cover constructed in accordance with another embodiment of the present invention. It is a partial assembly outline explanatory diagram.

Figure 6 shows the dispenser and cover of Figure 5 with the dispenser and cover all assembled. FIG.

FIG. 7 is a partially enlarged longitudinal sectional view of the dispenser and cover of FIG. 6.

FIG. 8 is a cross-sectional view of a dispenser and cover similar to that shown in FIG. Figure 3 shows a dispenser constructed according to another configuration of the invention.

FIG. 9 is a cross-sectional view of the dispenser of FIG. 8 taken along line 9--9.

FIG. 10 is a cross-sectional view of the dispenser of FIG. 8, but with a formed tube. A pair of ribs are shown extending radially inwardly along opposite sides.

Figure 11 shows a vertical view of a dispenser and cover similar to that shown in Figure 8. Figure 3 is a cross-sectional view showing a heating rod located within the dispenser.

FIG. 12 is a cross-sectional view of the dispenser of FIG. 11 taken along line 12-12. Ru.

[Summary of the invention] The present invention relates to the hot melt adhesive dispenser of Nottinghan+ et al. oriented towards new improvements and enhancements. In particular, the present invention provides even more effective and consumable Microwave-heatable hot-melt adhesive design provides safer use from a consumer's perspective. Directed to fixes and improvements to the dispenser. Generally, the dispensing device of the present invention , designed to be compact and portable for easy use. In this connection it is Generally, it is a dispenser that can be held in the hand.

But, of course, larger embodiments also have potential in industrial equipment. It is expected to be used extensively.

The concept of the dispenser of the present invention is that when heated above the predetermined initial temperature, , converting materials, especially hot melt materials, from a solid or highly viscous state to a liquid or Hot melt materials used in the practice of the present invention are particularly useful for converting to low viscosity For example, hot melt adhesives, foods (i.e., hard candy, chocolate) cholate, etc.), solders, waxes, and oils. It can be used for distributing chemical materials and initiating reactions. In particular, such heat-sensitive materials encompasses materials that cure or polymerize when exposed to a predetermined temperature for a predetermined time . Such heat-sensitive materials include, for example, epoxies, polyesters, polyurethanes, polybutylene, etc. Gen, cyanate ester, bismaleimide, polyimide, polyphenol, Thermosetting resin selected from the group consisting of alkyds, amino resins and silicones includes. The present invention is particularly advantageous for dispensing hot melt adhesives and generally This will be discussed in connection with this.

According to one embodiment of the invention, the dispenser includes a first material to be dispensed; a second material in thermal transfer relationship with the first material, but not dispersed within the first material; the first material is disposed therein and also contains or houses a second material; a suitable container and said first material are dispensed and then subjected to microwave energy. Contains an outlet that exposes the device to Here, the second material is the first material in a solid state. or from high viscosity to liquid state or low viscosity, polymerization or hardening of the first material. A minimum Curie temperature at least equal to the activation temperature and a first One material boils or is adversely affected by the heat generated by the second material. and below the combustion temperature of any of the materials used to make the device. The selected ferromagnetic material has a high maximum Curie temperature. Preferred ferromagnetic material includes ferrite, spinel and spinel ferrite. particularly preferred Ferromagnetic is primarily one that has magnetic heating properties, most preferably substantially It has non-electrical or heat-resistant properties.

A second embodiment of the invention provides a container, in other words at least an inner surface of the container. However, even though the second material is a composition, the whole containing the second material relates to similar devices. In particular, this example is an elongated molded body with a vertical axis, and its inner surface A container whose surface has at least one rib extending parallel to the inside in the longitudinal direction is planning.

- In the example, the container has deposited the second material in the form of a fine powder or as a film. Molded from high temperature polymeric material. Alternatively, the container itself may contain the second material. However, the container itself heats up when subjected to microwave energy. Molded from a high temperature polymer dispersed with a finely divided material intended to this selection In some examples, the polymeric material has particles dispersed in a first material contained within the container. to maintain sufficient heat transfer properties to transfer the generated heat. must be selected. A further preferred example of this is that the opposite inner surfaces of the container contains two ribs.

Ribs extending into the first material from the inner surface of the container cause heating of the first material. promote and help.

Another embodiment according to the practice of the invention provides a second container having a long axis parallel to the long axis of the container. Using a heating rod like material. The heating rod is enclosed within the first material. or embedded. Preferably, the heating rod has a large surface in contact with the first material. of sufficient length and shape to provide a

-i the heating rod will extend almost the entire length of the container. Alternatively, add The thermal rod will extend through substantially all of at least the first material. This example is particularly effective since all of the radiant energy from the heating rod is transferred to the first material. It is. Additionally, this is done so that heating of the outer surface of the container is minimized. Heat the food from the inside out. Of course, the inner surface of the heating rod is also It is used simultaneously with a container containing two materials. Such an example is when heating Since it occurs from both directions of the first material, it provides extremely rapid heating of the first material. be.

Finally, a fourth embodiment according to the present invention provides a solid state upon heating to a predetermined temperature. or a first material that changes from a high viscosity state to a liquid state or a low viscosity state, at least in advance. heated to at least the predetermined temperature when subjected to microwave energy for a specified period of time a second material that is designed to be in a heat transfer relationship with the first material; and a container and device containing or encasing a second material. A disk comprising an outlet through which the first material is dispensed after being exposed to microwaves. Incorporates the use of an insulating jacket that substantially encloses or encloses the pencer. Ru. The insulating jacket may contain part of the container or may include a reusable sleeve into which the material is inserted and removed. In the former example includes dispenser and jacket once all materials in the container have been dispensed. All equipment is discarded. In the latter example, if all the ingredients are dispensers Once dispensed, the dispenser is pulled out of the sleeve and the new dispenser is dispensed. inserted so that the server can be reused.

According to this embodiment of the invention, the insulating jacket comprises at least one layer of insulating material. Other examples include preferably containing at least one layer of polymer, including an outer layer of may include multiple layers, one of which is preferably not an outer layer, but is made of glass fibers. Composed of fiber mats.

By using an insulating jacket, the first material can be brought into a solid or highly viscous state. the temperature at which the temperature changes from to a liquid or low viscosity state, or at which polymerization or curing begins. During heating sufficiently to reach cooled down.

Other features and advantages of the invention will be apparent from the following detailed description and accompanying drawings. It will be.

[Detailed description of preferred specific examples] In general, the present invention in its broadest concepts relates to improvements in devices for dispensing heat-sensitive materials and Regarding the modified embodiment, the device is composed of the following members (i) to (iv).

(i) from a solid or highly viscous state to a liquid state when heated to a predetermined temperature; or changes to a low viscosity state, or polymerization or curing of the first material begins. The first material to be activated in such a way; is heated to at least a predetermined temperature and is in a heat transfer relationship with the first material. a second material designed to; (i) A first material is arranged and is capable of containing or enveloping a second material. a container that can be used; and (iv) an outlet dispensing the first material after the device has been exposed to microwaves: Referring to the first material, second material and container used herein: This is about this general structure.

The first material used in the practice of the invention is in a solid state or or heat-sensitive materials that change from a high viscosity state to a liquid state or a low viscosity state, or activated such that when heated to a temperature, the first material begins to polymerize, or harden. It includes a variety of materials such as materials that can be used. Materials that match the former properties are often Characterized as hot melt. One such exemplary material is hard candy. foods such as chocolate, syrup, jam, etc.; solder: wax; and oil. The first materials with the latter properties are epoxy, polyester , polyurethane, polybutadiene, cyanate ester, bismaleimide, poly Heat cures such as imides, phenolics, alkyds, amine resins and silicones thermosetting resins and other thermosetting or thermopolymerizable materials.

When these latter materials are dispensed, prior to substantial curing or polymerization of the materials. to allow sufficient time to heat and dispense the material for its intended use. That is, it is particularly preferable to adjust the polymerization rate.

The present invention is particularly suited for use in heating and dispensing hot melt adhesives. In light of this and for ease and simplicity of discussion, the apparatus and methodology of the present invention will be specifically described. Let's discuss hot melt adhesives.

A hot melt adhesive suitable for these purposes is Product No. 2125 <7) Name It is manufactured and sold by the former B, Fuller Company. Of course, others Hot-melt adhesion of polyvinyl formal, polyvinyl butyral, and Vinyl acetate (EVA), H') knee f-1y (PE), H' ) 7”o HiL/7 (PP), polyamide, polyester, polyester Based on or containing amides and blends with the copolymers listed above. It can be used to carry out the invention.

A second material in a heat transfer relationship with the first material is at least When applied for a scheduled time, it is applied so that it is heated above the scheduled temperature. representative Generally speaking, these materials are commonly known as susceptors. and consists of microwave-absorbing particles. Suscept used in carrying out the present invention An exemplary example of a ter is that known in the use of microwave heating. So In the simplest embodiment, the susceptor is a specific component of the configuration of the device of the invention. Microwave absorbing material in the form of fine particles, spray type or film according to specific examples and methodologies Includes fees. The susceptor material itself is generally made of steel, aluminum and steel. metals such as stainless steel; ferrite, spinel and pinel ferrite metal oxides such as graphite, carbon black, and carbon black. This includes carbon particles such as carbon fibers.

Obviously, those skilled in the art will also know of other suspensions that may be used in the practice of the present invention. The material will be easily discernible.

In one particular example of a susceptor, the particulate microwave absorbing material is a high temperature polymer film. Attached to or embedded in the film matrix. The film is a layer in the equipment's components. - (layer). Optionally, particles of microwave absorbing material are placed in a container High temperature resistant polymer matte coated on the inner surface of the container, including one or more layers of distributed within the lix. Additionally, as discussed below, at least the first material such as heating lofts, compressible coils, or foam particles dispersed within a substantial portion of the The second material may also be attached to or dispersed within the structure. .

As mentioned above, one type of susceptor is fundamentally attached to a high temperature polymer film. Contains attached microwave energy absorbing particles. Preferred for use in carrying out the invention Suitable susceptors generally have optical densities in the range of 0.05 to 2.0. this Films with optical densities at the upper end of the range or higher generally have higher Has high reflective properties. In addition, the heat generated by the susceptor is extremely low and extremely high. Even smaller absorption features, such as high optical densities, are suitable for use in the present generation implementation. is not practical. Preferably, such a film susceptor has a 9 This type of industrially available susceptor with an optical density of 0.35 is Contains metal particles arranged in a high temperature polyimide film. Such materials are Cranbury.

Manufactured and sold by National Hetalizing, NJ . The basic polyimide film or substrate has the trade name “Kaptan” (7 ) Original E, 1. At DupontDe Nemours & Company Manufactured, sold and sold.

Other high temperature polyimide films used in the manufacture of such susceptors are commercially available. Product name old tem", Pittsfield, HA General Ele Manufactured and sold by ctric company.

Other high temperature films may also be made of various thermoplastic polymers including, for example, polyester. , synthetic resin, etc. can be used as a substrate for microwave absorbing particles. this The films also include the aforementioned Nat1o-nal Hetalizing Company. It is already commercially available from a variety of suppliers. susceptor film used alone or typically in conjunction with a second supporting film. can be done. In this latter condition the susceptor film is exposed to microwave Polymer films with absorbent particles attached to the top surface are high temperature resistant or even structurally comprising a portion of a film composite adhered to a supporting polymer film oriented in to be accomplished. The support film can be used, for example, in a porous film of the type mentioned above, as well as other high temperature materials. Including liimide film. The susceptor film is made of high temperature adhesive, e.g. Avery ProduCtS in Harino, California Adhere to the support film using Avery 1184 manufactured and sold by be done. In all cases, the backing or support layer consists of an outer susceptor filter. Provides a stable high temperature backing for systems. One particular example of this hybrid is a high temperature It is bonded to a microwave transparent polyimide film using an adhesive, and the micro Susceptor film, which is a polyester film attached with wave-absorbing particles includes. This concrete side is a susceptor, which will be further discussed in connection with the drawings. Another example of the use of It is something that is scattered. Suitable thermoplastic materials include the aforementioned polyesters, polyimides, This includes hard disks, silicon, etc. Such microwave absorbing particles-filled susceptors Typical examples of materials are carbon black filled silicone resin, ferrite filled silicone Including resin etc. Particulate microphones typically integrated into a polymer matrix The amount of the radio wave absorbing material is such that it can provide sufficient heating to the first material in a timely manner. Ru. Preferably, the amount of material incorporated into the polymer matrix resin is microwave absorbing. 5 to 50%, preferably based on the total weight of the material and polymer matrix resin. , 10 to 40% by weight. Although lower addition levels can be employed, The heating is insufficient or takes too long to be commercially viable. On the contrary, if we adopt a high loading of microwave absorbing material, such a high loading will be , heating rates that are too fast can also have adverse effects on the physical properties of the polymer matrix. will exceed the temperature to be achieved.

Particularly preferred microwave absorption to be employed or integrated into the susceptor The first material is in a solid state or a high viscosity state to a liquid state or a low viscosity state. or activated to initiate polymerization or curing of the first material. a temperature at least equal to the predetermined temperature and the first material is boiled. or which is inversely affected by the heat generated by the second material. the highest temperature that is lower than the ignition temperature of any of the materials used to refine the equipment. ferromagnetic material selected to have a temperature of

In a preferred embodiment, these ferromagnetic materials are recommended for use in containers. Safety - Use/Safety - Maximum curri temperature not more than 10°C above the temperature of exposure There will be degrees. Such ferromagnetic materials have the same heating properties, but typically It is desirable not to exceed the temperature of those cucumbers.

Such ferromagnetic materials are preferably ferrite, spinel, spinelferra It includes the

Particularly preferred ferromagnetic materials are those that have excellent magnetic heating properties. substantially Particularly preferred are those that do not charge electricity or have heat-resistant properties, and are most preferred. The material is essentially non-electrical and heat resistant. Regarding this latter, The saturation of the magnetic force and the Curie temperature occur when the material virtually ceases to be heated by the microwave transition. arrive at the same time. On the other hand, electrical or thermal resistance has no blockage point and therefore Due to the electrical or thermal resistance of the ferromagnetic material chosen, heating is much slower. Although it is still a short period of time, it will continue. The electrical or thermal resistance properties of such ferromagnetic materials A non-limiting assessment of the level of Somewhat elusive from the electrical interactions or impedance of magnetic materials. It will be done. In general, the lower the electrical interaction, i.e. the impedance The higher the value, the more preferable the material is.

The use of such ferromagnetic materials is important in the construction of dispensing equipment, especially in containers and insulating jackets. If the material used in the cut is substantially below the Curie temperature or Particularly desirable for applications with flash points that are not significantly high. If the first material is at a higher temperature temperature, or undergo boiling at such higher temperatures. It is also desirable to use ferromagnetic materials that are easily exposed. hot melt material When used as the first material, the hot melt material is in a liquid state or has a low viscosity. It is desirable to heat the material to a temperature at which the If the material is 1. material to a temperature substantially higher than its reaction temperature. It is also desirable to avoid heating.

Of course, there are 0 examples showing the effectiveness in regulating the heat generated by the susceptor material itself. For example, suspensions containing blocking agents such as calcium salts, zinc salts, zinc oxide, etc. It will be appreciated that other materials may be added to the adapter, such as silicone matrices. The susceptor material containing carbon black dispersed in the micro It will continue to heat up as long as it is exposed to wave energy. Remove the device from the microwave. If not removed, the device may ignite itself or cause the microwave assembly to ignite. It may be heated to a temperature that is Use such blocking agents with carbon bra. Used in conjunction with the There will be.

The first material contains a second material or a copolymer in which the second material is similarly arranged. placed inside the antenna. Generally, the container will have structural limitations on the dispensing device of the present invention. provide protection and security. The container itself has the desired structure and materials to be dispensed. one or more layers of material. Furthermore, the second material is inside the container. Between two non-susceptor layers that may be coated on a surface or contain a container or it may comprise an intermediate layer sandwiched between It would be fine to stay there.

The preferred materials used in the manufacture of the container will depend on the particular construction in which the device of the invention is formed. For example, if the second material is coated on the inner surface of the container, or contained within a container, the container has at least one portion in contact with the second material. a second material on the inner surface of the container; contained within the material.

Such high temperature resistant materials allow microwave energy to reach the second material. It must be microwave transparent. the container is made from the second material If the outer layer is in direct contact with the second material, The layer must be a microwave transparent, high temperature resistant material, preferably non-thermal transfer It is gender. At the same time, the inner layer, i.e. the layer between the second material and the first material, It must be made of a high temperature resistant, thermally conductive material so that heat can be transferred from the second material to the first material. and preferably do not impede microwave travel through the distribution device. It is transparent to microwaves.

Finally, if the container includes a second material, the container has a high temperature resistant , must be made from a microwave transparent, thermally conductive material.

Typical examples of materials used to manufacture containers are polyimide, high temperature polyester , a modified polyphenylene oxide resin, silicone and having the desirable properties mentioned above. and other thermoplastic polymers.

The selection of the particular material used in the manufacture of the container is dependent on the equipment being exposed to microwave energy. the second material for a suitable period of time to reach the appropriate temperature. depending somewhat on the temperature required to alter and/or harden the first material. will. Thus, for example, if the first material has a low temperature, a melting point of about 100°C, For hot melt adhesives, the container design and configuration should be The heating time does not exceed 3 minutes and the temperature achieved by the second material exceeds 150 °C Suitable for use in container manufacturing when it is expected that The high temperature material has a melting point of 180°C. High temperature hot melt at the same time (with a melting temperature of 250°C) is used, a correspondingly high temperature second materials would be used in combination with the same high temperature resistant polymers for containers. . Essentially, the choice of material depends on the proximity of the second material and the recommendation of this second material. Maximum temperature expected to be reached when receiving microwave energy over time Dependent. This latter condition means that the consumer will probably If the device is placed in a microwave oven for a period of time, and the recommended heating period is This may be caused by hot spots in the microwave oven. It considers the case of compensating for excessive heating even when

Finally, the outlet dispensing the first material is preferably in the form of a nozzle. Shigashi, Depending on the particular shape of the distributor as a whole, other outlets of the outlet are also suitable. Like Alternatively, a second material is also found at the nozzle or outlet. In this case, the container The nozzle, which is an integral part of the susceptor or a separate component attached to the container, The polymer material contains a dispersed polymeric material. Selectively nozzle susceptor covered with material or film susceptor. Combine the susceptor with the nozzle The purpose of this is to prevent heat loss in the first material and to disperse it through the nozzle. difference Otherwise, such heat loss may cause the outlet to solidify or clump. There will be.

In use, a dispensing device such as the one described above is capable of dispensing a first material in a solid or highly viscous state. or polymerization of the first material, i.e. to activate the reactive component containing the first material so as to initiate curing. , for a scheduled period of time sufficient to provide a frequency of microwave energy, the microwave Placed in a wave oven or exposed to a source of microwave energy. This distribution device , 400 watts to 800 watts and higher and around 2.5 GHz Suitable for use in ordinary household microwave ovens with high frequencies. Of course, that de Dispenser typically has a wattage of 900 watts and approximately 10 KHz to 100 GH commercial or industrial-Thailand with the same result but in a shorter time It can also be used in microwave ovens. Once the dispensing device has been heated for a sufficient time , the dispenser is removed from the furnace and the material is dispensed from there to the desired application site. It will be done. Dispensing typically involves squeezing or squeezing the container to force the first material through the outlet. is done by pressing. In this regard, it is commonly used as structural material for equipment. Low or moderate modulus materials, i.e. materials that are easily compressible, are used to It is preferable to choose, at the same time such materials are not particularly required However, when the compressive force is removed from the surface of the container, the container or its initial is essentially elastic in nature, returning to its original form and shape.

Such elastic properties allow the first material in the nozzle section to be sucked into the body of the container. It would be possible to do so.

In a most preferred embodiment, the dispensing device of the invention also implements a dispensing device as described above. Qualitatively includes a surrounding insulating jacket. This insulating jacket is microwave transparent. and includes at least one layer of insulating material. Particularly preferred are two or more layers, at least one of which is comprised of an insulating material. −Specific In examples, an insulating jacket includes one or more layers having insulating properties and and an outer layer having non-insulating properties.

In this connection, the outer layer may consist of a suitable polymeric material, paper, paperboard, etc., on which the Desired labels, colored wrapping paper, etc. are attached or printed. suitable absolute The edge layer can be made of e.g. polyethylene foam, polypropylene foam, modified polyphenylene. Foamed or puffy polymers such as oxide foams, polystyrene foams, etc. Includes body materials. Other suitable insulating materials are e.g. fiberglass, fiberglass mats. , injection molded high temperature glass fiber filled plastics, low thermal conductivity silicone, etc. do. If the thermally insulating jacket contains multiple layers, the jacket is made of fiberglass. Small fabrics made from materials such as non-woven fabrics, fiberglass mats, or foamed polymers. It is contemplated and preferred to include at least one intermediate insulating layer. Generally an insulating layer For example, the time it takes to heat the dispensing device in a microwave oven is about 500"F. Preferably, it is made from a flexible, elastic material that can withstand high temperatures.

The purpose and advantage of using an insulating jacket are twofold. The first is burns on the user's hands. so that the distribution device can be easily removed from the microwave oven by hand regardless of An insulating jacket provides a cool contact surface. Additionally, the insulation jacket is essentially Since the insulation jacket is non-thermal conductive within the container and therefore within the first material, The heat generated by the second material is retained. Therefore, such insulating sleeves Use is much longer after removal of the distribution device from the microwave energy source. Gives you more usage time. - In a specific example, the insulating jacket is located at the outlet, i.e. Envelop the entire dispensing device except for the leading edge of the tube. This also applies within the nozzle part as well. Contributes to retaining heat.

In one embodiment of this aspect of the invention, the insulating jacket is adhering to or encompassing the outer layer of the container. In this state, the first material is completely Once fully dispensed, the entire dispensing device is removed. Other (and preferred) examples In the insulating jacket, a dispensing device is used as described above, and the first material is Contains a sleeve that is removed and discarded after it has been fully dispensed. This example Consideration is given to the reuse of tubes and the minimization of costs and waste of raw materials.

Irrespective of the specific example employed, the insulating jacket is microwave transparent. and exposing the dispensing device to microwave energy, and then preventing dispensing of the first material. It is unavoidable that the material be constructed of a material that is sufficiently flexible and elastic to prevent this from occurring.

To facilitate a fuller understanding of the scope and nature of the invention, the applicant has included the following drawings: Various specific examples of the apparatus of the present invention will now be described.

FIG. 1 shows a perspective view of a distribution unit 10 according to a practical embodiment of the invention. Distribution Yu The knit 10 includes a dispenser 12 and its cover 14. The cover 14 The dispenser's stand is made to feel similar and serves as a cold dispensing aid It consists of a pair of side members 30 and 32 and a central member 34 therebetween. side Members 30 and 32 and central member 34 are integrally formed and each of the side members It has a hinge structure 36 integrally formed between the central members. Preferably cover 14 includes an opening 38 extending through the central member 34, each hinge structure 36 and each side. It is configured through the tops of members 30 and 32. The opening 38 is a dispenser -12 nozzles 24 are formed to fit therethrough.

Cover 14 is preferably formed from a relatively rigid, thermally insulating material of construction. cover A typical suitable material is bleached hardwood with a thickness of 0.01-0.02 inches. 1716~ of foamed polypropylene and/or foamed polyethylene on kraft paper This is a structure formed by laminating 3732 inches.

In general, the cover is disposed of when the cover is supported on a surface that is Hold the Spencer in an upright orientation. The hinge structure 36 has side members 30 and 32 Under the opposing force, the first material contained within the dispenser passes through the outlet 24. The dispenser is compressed and squeezed out so that it can be dispensed.

Figures 2 and 3 show cross-sectional views of two different dispenser embodiments.

A first material to be dispensed is placed in a container 22 coated on the inside with a layer of a second material 20. Contained in The second material 20 is, for example, a high temperature polyimide fibre, with metal particles. It consists of a sensitive film containing lume. Because the first material 18 expands due to heating , it is generally preferred to have a space 25 above the material, which is a dispensing unit. If the knit is exposed to microwave energy for a long time and the first material boils and tightens. is particularly important.

FIG. 3 shows that the container 22 is made up of a multilayer structure consisting of an outer layer 23, an intermediate second material layer 20, and an inner layer 40. 3 illustrates a similar embodiment formed in a layered structure. In this case, the second material or The susceptor film is preferably thermally conductive with a microwave transparent outer layer 23. is sandwiched between a microwave transparent inner layer 40. As shown in the example in Figure 2. The second material contains a polyimide film with metal particles deposited on its surface. do. The outer layer 23 and the inner layer 40 are made of the same material, e.g. polyimide, polyester, silicone. It may be made of a high temperature resistant thermoplastic resin such as Recon. The multilayer configuration is In particular, the first material 18 is in good health with the material contained within the sensitive layer 20 or the outer layer 23. No contact is recommended. Similarly, the use of inner layer 40 also allows first material 18 to Reactive materials that are adversely affected by the constituents contained within the receiving layer 20 or the outer layer 23 It is important that the

FIG. 4 is a cross-sectional view of the dispenser 12 shown in FIG. 2 taken along line A-A. be. In addition, this specific example includes a container 2 wrapped together with the sensitive layer 20 and the first material 18. 2 is shown.

5 and 6 illustrate other examples of dispensing units 50 made in accordance with the practice of the present invention. The nine dispensing unit 50 includes a dispenser 52 and a jacket 54 surrounding it. is wrapped around. Dispenser 52 supplies a first material 58 that is to be dispensed. The second material 60 and the first material 58 associated with the heat transfer of the materials are dispensed. Contains a mouth 61. The second material 60 is exposed to microwaves for at least a predetermined period of time. Sensitivity (su 5c) applied so that it is heated above a predetermined temperature when subjected to eptor). The susceptor is, for example, a polyester film Deposited onto a thin (48guage) microwave transparent polymer film such as Contains microwave absorbing particles. - In the example, the susceptor 60 is made of high temperature adhesive. (e.g. Avery 1184), such as polyimide film. A second microwave transparent inner sheet 62 is adhered. This inner sheet 62 is Provides a stable high temperature backing for the side susceptor film 60. Susceptor 6 0 and an inner microwave transparent sheet 62 is then bonded to the first material. coiled integrally around the material 58 and located on the outer surface of the tube. A tube-like container is formed with the susceptor. In this example, generally mixed The top edge of the film overlaps, and it also overlaps the bottom edge of the previously rolled composite film. This is particularly well illustrated in FIG.

In another example of this embodiment, the inner microwave transparent sheet 62 has a first The susceptor 60 is first wrapped helically around the material 58 and then the susceptor 60 is wrapped around the material 58. constant around the entire length of the inner microwave transparent sheet to form a container It is wrapped with a width of In this case, the susceptor is ``hotspots'' are formed along the length of the dispenser. be prevented from being In addition, the susceptor particles are microwave transparent on the outside directly attached to the outer surface of sheet 62, this single sheet is then coated with first material 58. The container is formed by being spirally wound around a tube. In any case, mix When the composite film is made, the high temperature adhesive binds the susceptor film 60 inside. It is used to bond to the microwave transparent sheet 62 on the side. In addition, the structure of the container If there is a hybrid structure overlap in the structure, this high temperature adhesive will also Apply between joints to reliably join sheets together.

As shown in FIGS. 5-7, a dispenser 52 so formed can be used Have a person firmly grasp the dispensing unit 50 and remove it from the microwave oven. Encased within an insulating jacket 54 containing one or more layers of edge material.

For example, in the particular example shown, the standoff jacket 54 is an outer standoff layer (sheath). 70, containing an intermediate isolation layer 72 and an inner isolation layer 74. Its outer isolation sheath 70 is provided with saw teeth and screws (not shown) to facilitate the user's understanding of heat dissipation. preferably polyethylene, polypropylene, polyimide or polyethylene. Made of a flexible, insulating material such as tyrene foam. Of course, the song is easy and elastic Other materials with some insulating ability can also be used. For example, the inner isolation layer 74 and The intermediate isolation layer 72 is also formed of a flexible, resilient, insulating material. For example, within The side isolation material 74 is a glass fiber mat, glass fiber filled high temperature injection molded thermoplastic. Or formed into a tubular shape from molded silicone. The intermediate insulation 72 is also made of non-woven glass fiber. It can be formed from materials such as fibers and other insulating materials. Furthermore, as mentioned above, Any one or more of the layers of the insulating jacket is at least one layer of insulating material. It may contain a non-insulating material as long as it contains.

Finally, in the embodiment shown in Figures 5-7, the distribution unit 50 is also based on It includes a nozzle 52 having an outlet 61 through which the first material 58 is dispensed. have The base 76 supports the dispensing unit 50 in a vertical direction (nozzles directed upwards). ), but the dispenser has been heated in a microwave oven and is not in use. stomach. The base 76 may be separately molded of other heat resistant material such as polypropylene. Ru. Optionally, the base 76 permanently disables the replacement dispenser 52 for reuse. A hinged or threaded connection (not shown) is provided for insertion into the bottom of the edge jacket 54. (2) is removably attached to the insulating isolation jacket.

Also, regarding hot melt adhesives, the adhesive is heated so that it can be easily applied to the object. and must be covered to avoid pressure build-up at dispenser S2. It seems important to leave the small nozzle 61 intact. dispenser 52 Hold the dispenser vertically during the heating process while the hot melt adhesive Prevent the agent from dripping.

However, the outer isolating layer 70 also contains droplets of hot melt adhesive from the nozzle 61. contained within the intermediate isolation layer 72 and slightly below the intermediate isolation layer 72 to prevent dripping on the outer surface of the cover. Crabs are formed high.

Another example of a distribution unit 5o made according to the invention is shown in FIGS. 8 and 9. It is. The dispensing unit 50 is now an isolation jacket containing the unit 52. Contains 54. As described above, the isolation jacket 54 includes a plurality of isolation layers 70 and 7. Contains 2.

Dispenser 52 includes a container 63 with a first material 58 and an end plug 81. have - In the embodiment, the inner surface of the container 63 is coated with a sensitive material 65. choice Also preferably, the container 63 contains a high temperature thermoplastic resin dispersing the second material. do. In this example, a high temperature, thermally conductive polymer film 65 may be included, if desired. The intermediate layer 65 acts as a chemical barrier between the container 63 and the first material 58. Optionally no such intermediate layer may be used.

9 shows a cross-sectional view of the distribution unit 50 of FIG. 8 taken along line 16-16. This figure also shows the capacitors essentially contained within the inner isolation layer 72 and the outer isolation layer 70. The first material 58 contained within the vessel 63 is shown. The distribution unit is the first material It simply dissolves when heated in a microwave oven for a sufficient period of time to cause alteration or activation of the Inward pressure is applied to the dispensing unit to dispense the first material 58 through the outlet 61 .

- Container 63 of dispenser 52 made according to this embodiment of the invention is preferred. or elastic, flexible thermoplastic or silicone rubber. The container 63 is also When containing a susceptor for hot melt dispenser 52, microwave ``Absorbent particles are dispersed within the polymer matrix that constitutes the container 63. this eye Exemplary materials suitable for this purpose are carbon black filled silicon and ferrite filled silicon. Includes Recon.

The more significantly effective and rapidly repeating dispensing unit depicted in FIGS. 8 and 9 is It is of the type shown in FIG. In particular, FIG. and includes two ribs 64 running along the inside of the container in a direction parallel to the longitudinal axis. 9 shows a cross-section of a distribution unit 50 similar to that shown in FIG. 8; In the conventional example In this case, the surface of the rib 64 is similar to the inner surface of the container 63, and the susceptor material 65 is It is attached on top of. On the other hand, the container 63 and the ribs 64 disperse microwave absorbing particles. a second material containing a polymeric matrix containing Furthermore, again The dispensing of the first material 58 from the dispenser 52 through the outlet 61 is shown in FIG. essentially by applying pressure to the outer surface of isolation cover 54, as shown by the arrows. It's brought to you. The radially opposed portions in this example configuration of dispenser 52 The use of ribs provides the best distribution of the first material 58.

The improved heating efficiency of the first material 58 resulting from the use of the ribs 64 is shown in Table 1. It is clear from the results shown. In particular, Table 1 shows the standard configuration tubes in Figures 8 and 9 and Figure 1. 0 ribbed configuration for use with two different types of ferrite susceptors. Figure 2 shows the heating rate of the dispenser manufactured using the same method.

Each dispenser contains 40% by weight of the same ferrite material. l　The injection molding grade silicone rubber used from Rubber is made by injection molding. manufactured by Standard EVA hot melt adhesive is placed inside the silicone tube. The tube is closed at its end to prevent loss of hot melt adhesive during heating. It can be folded at the end. The dispenser then receives microwave energy, The temperature of the internal hot melt adhesive is checked one by one using a glove.

[Table 1] Tube configuration STD Ribbed STD Ribbed Heating rate 2 minutes 203 319 302 3433 minutes 273 398 365 418 4 minutes 314 421 395 46 IP, T, FCX3242 1. (Hn/with saturation magnetism of 5000 Gauss and Curie temperature of 200 °C Zn modified ferrite, manufactured by Power Technology, Va l pa ra i so, CA) 2, Fair-Rite 77 (4600 Hn/Zn modified ferrite with Gaussian saturation magnetism and Curie temperature of 200°C (Fair-Rite, manufactured by ProduCtS, -all, NY) +, maximum glue temperature A final alternative embodiment of the device of the invention is shown in FIGS. 11 and 12. Especially in this example, the second material A material or susceptor is embedded within the first material 58. 5 depicts a dispensing unit 50 containing a heating rod 80. The heating rod 80 is the second material Alternatively, the heating rod 80 may include a substrate coated with a material, or the heating rod 80 may include a If made from a polymeric material in which the ceptor material is dispersed, the structure is made of a second material. You can let it happen. Figure 12 was taken along line 18-18 of the distribution unit of Figure 11. A cross-sectional view is shown. According to this example, the container 63 is within the addition range of the second material. The amount may be dispersed. or non-dispersed thermoplastic material or silicone rubber injection molded. Furthermore, this specific example also has a second layer on the inner surface of the container 63. It is observed that a layer of material is coated thereon. However, generally the second The presence of the material means that the heating rod 80 only requires 9 dispersion units for this configuration. The heating of the first material 58 occurs from the back side. This heating method is also suitable for containers Reduce the temperature reaching the outer surface of 63. In light of this, the container 63 Made of chroma wave transparent, heat insulating material. An example of such an embodiment is the isolation sleeve 5 Eliminate the need for 4.

In the embodiment shown in FIG. It includes a removably attached base 76.

The invention is not limited to the specific examples described or illustrated in the accompanying drawings. . Rather, these specific examples are provided by way of example and not limitation. Honmei Various substitutions and modifications of the specific examples described and illustrated in the specification may be made from the present invention. Modifications may be made by those skilled in the art in light of the teachings of the present invention without departing from the teachings of the present invention. Therefore, The invention covers all embodiments and modifications that may come within the scope of the appended claims. It is intended to include all types of people.

Fig, 5 Fig, 6 Fig, 8 Fig, 11 Procedural amendment February 10, 1995 2. Name of the invention Improved microwave hot melt dispenser 3, corrector Relationship to the case: Applicant Address: United States, 06106-5108. Hartoff, Connecticut Ford, Colombe included, Bowlebert, 1゜ (and 1 other person) 4. Agent Ginza Building, 3-3-12 Ginza, Chuo-ku, Tokyo (3561-0274, 5386) Amendment Patent application Hei 6-519192 (1) The scope of claims is amended as follows.

1.1) From a solid state or high viscosity state to a liquid or low activating the first material such that it changes to a viscous state or begins to polymerize or harden the first material. First material to be sexualized: 1) When receiving microwave energy for at least the scheduled amount of time, a second material that is designed to be heated to a predetermined temperature; A second material is also in thermal transfer relationship with the first material, but within the first material. Not decentralized.

111) A container in which the first material is placed and includes or contains the second material; ner; and iv) an outlet for exposing the device to microwaves to dispense the first material; Apparatus for dispensing heat-sensitive materials consisting of

2. The first material is hot melt adhesive, food product, solder, wax or uraka. 2. The device of claim 1, wherein the device is selected from:

3. The apparatus of claim 1, wherein the first material is a hot melt adhesive.

4. The first material is epoxide, polyester, polyurethane, polybutadiene. cyanate ester, bismaleimide, polyimide, phenols, alkyl a heat-activated polymerizable group selected from the group consisting of resins, amino resins, and silicones; 2. The device of claim 1, which is a synthetic material.

5. Is the second material particularly a microwave absorption sensitive material in the form of particulates or films? The apparatus according to any one of claims 1 to 4, comprising:

6. The second material is a high temperature polymeric film on which a microwave absorption sensitive material is placed. The apparatus according to any one of claims 1 to 5, comprising:

7. Microwave absorption sensitivity in the form of particles dispersed within a second material or high temperature polymeric material. 6. A device according to any one of claims 1 to 5, comprising a flexible material.

8. High-temperature polymer materials include polyimide, high-temperature polyester, and modified polyphenylene oil. 8. A device according to claim 6 or 7, wherein the device is selected from oxides and silicones.

9. Materials sensitive to microwave absorption include metals, metal oxides, ceramics and carbon. 9. A device according to claims 5 to 8, wherein the device is selected from the group consisting of particles.

10. Microwave absorption sensitive materials include ferrite, spinel and spinel ferrite. 10. The device according to claim 9, wherein the metal oxide is a finely divided metal oxide selected from the group consisting of:

The specific microwave absorption sensitive material has a minimum One temperature and the heat generated by the first material boiling or the second material create the opposite effect. and below the ignition temperature of either the first material or the container. The metal oxide according to any one of claims 5 to 10, which is a metal oxide having a maximum Curie temperature. Device.

+2. The microwave absorption sensitive material is primarily a ferromagnetic material with magnetic heating properties. The device according to any one of claims 9 to 11, wherein the device is a material.

13. Microwave absorption sensitive materials include aluminum particles, iron particles, and stainless steel. The device according to claim 9, wherein the device is a finely divided metal selected from the group consisting of steel particles. Place.

14. Microwave absorption sensitive materials include graphite, carbon black, and carbon. 10. The device according to claim 9, wherein the carbon particles are selected from carbon fibers.

15. The second material is a heating rod or compressible core embedded or wrapped within the first material. 15. The device according to any one of claims 1 to 14, which is in the shape of a file.

16. The device according to any one of claims 1 to 14, consisting of a second material or a container. Place.

17. A second material or a silicone with a microwave absorption sensitive material dispersed inside. 17. The apparatus of claim 16, comprising:

18. Claims 1 to 1, which is an inclusion between the second material or the first material and the container. 4. The device according to any one of 4.

19. Claim in which the second material is present as a coating on the inner surface of the container 19. The device according to any one of 1 to 14 and 18.

20 The container is essentially shaped like a tube with a longitudinal axis, and the tube at least one rib on its inner surface extending parallel to the inside of the longitudinal axis of the rib; 20. A device according to any one of claims 1 to 19.

21. The device of claim 20, wherein the container has two opposing ribs on its inner surface. Place.

22. Claim comprising an outlet or nozzle, wherein the second material is also disposed within the nozzle. 22. The device according to any one of 1 to 21.

23. An inner layer of high temperature resistant, thermally conductive material interposed between the first material and the second material. 23. A device according to any one of claims 1 to 22, characterized in that:

24. A device according to any of claims 1 to 23, characterized by a cover.

25. The cover of claim 24, wherein the cover includes a thermally insulating material and is capable of being held in an upright position. Device.

26, featuring a microwave-transparent insulating jacket that substantially encloses the container. 24. The device according to any one of claims 1 to 23.

27. The insulating jacket according to claim 26, wherein the insulating jacket contains at least one layer of insulating material. equipment.

28. The device of claim 27, wherein at least one layer of insulating material is a foamed polymer.

29. The insulating jacket is Any one of claims 26 to 28, wherein one layer is glass fiber or glass fiber mat. The device described.

30. The insulating jacket forms a reusable cannula for inserting and removing contents. 30. A device according to any one of claims 26 to 29.

31. Any one of claims 26 to 30, wherein the insulating jacket contains a non-insulating outer layer. The device described in.

Continuation of front page (51) Int, C1,' Identification code Office reference number BO5D 7/24 3 01 P 7717-4DB65D 83100 (72) Inventor: Haas, Vans, E. USA, 44224. ojai 3409 (72), Sto., Adaline, Drive, O. Inventor: Marowski -Pernert, M. USA, 06002. Connecticut.

Bloomfield, Duncaster, Lord, 12 (72) Inventor: Thompson, Richard, Tee USA, 0643 8. Connecticut.

Haddam, Haddam, View, Heights, 15 (72) Inventor Jaros, Sinte A.R. United States of America, 44094. Lizzy, Kirtland, Ohio Yency, Woods, Drive + 9262 I (72) Inventor Notchingham, John R. United States of America, 4402 2. Ohio, Hunting, Barry, Fairmont, Bowlebird, 3 8075 (72) Inventor Spark, John United States of America, 44022. Ohio, Moreland, Hills, Stone wood, drive, 50 (72) Inventor: Sanders, Craig, M. USA, 44116. 2126 Stratford Avenue, Rocky River, Ohio 0 (72) Inventor Brokaw, Ball, E. United States of America, 44123. Oha Io, Euclid 0. Lakeshore, Bowlebird, 24995

Claims (41)

[Claims] 1. i) From a solid or highly viscous state to a liquid state when heated to a predetermined temperature or change to a state of low viscosity, or the first material begins to polymerize or harden. ii) a first material activated to When subjected to energy, it is designed to heat to at least the predetermined temperature. a second material also dispersed within the first material; There is no heat transfer relationship with the material; iii) a container on which said first material is disposed and which includes or contains said second material; and iv) an outlet for exposing the device to microwaves to dispense the first material: 2. A device for dispensing a heat-sensitive material comprising: When the first material boils or the second material lower than the temperature adversely affected by the heat generated by the first material or containing a ferromagnetic material having a maximum Curie temperature lower than the combustion temperature of the antenna. The above distribution device. 2. When the first material is heated to a predetermined temperature for a predetermined time, it becomes a solid state. 2. The device according to claim 1, wherein the liquid state or low viscosity state changes from a liquid state or a low viscosity state. . 3. 3. The device of claim 2, wherein the first material is a hot melt adhesive. 4. The device of claim 1, wherein the first material is a heat-activated polymerizable composition. 5. Heat-activated polymerizable compositions include epoxy, polyester, polyurethane, and polybutane. Gen, cyanate ester, bismaleimide, polyimide, phenol, alkaline A thermosetting resin selected from the group consisting of kid, amino resin, and silicone. 5. The device according to claim 4. 6. 2. The device of claim 1, wherein the ferromagnetic material has primarily magnetic heating properties. 7. The device of claim 1, wherein the ferromagnetic material has substantially non-electrical or refractory properties. Place. 8. 2. The device of claim 1, wherein the ferromagnetic material has essentially no electrical or thermal properties. 9. The second material consists of a high temperature polymer film with an array of fine ferromagnetic particles. The device according to claim 1. 10. The second material includes fine ferromagnetic particles dispersed within the high temperature polymeric material. A device according to claim 1. 11. 11. The device of claim 10, wherein the high temperature polymeric material is silicone rubber. 12. Ferromagnetic materials selected from ferrite, spinel and spinel ferrite 2. The device according to claim 1. 13. 13. The device of claim 12, wherein the ferromagnetic material is a ferrite. 14. 13. The device of claim 12, wherein the ferromagnetic material is spinel ferrite. 15. 2. The apparatus of claim 1, wherein the container contains the second material. 16. the container is essentially tubular with a longitudinal axis extending over its inner surface; Contains at least one rib parallel to the longitudinal axis of the tube and extending inwardly 16. The apparatus according to claim 15. 17. a heating rod with a second material embedded or wrapped within the first material; 2. A device according to claim 1, wherein the device is present as: 18. i) When heated to a predetermined temperature, it changes from a solid or highly viscous state to a liquid state. or change to a low viscosity state, or the first material begins to polymerize or harden. ii) microwave energy for at least a predetermined period of time; The first a second material that is not dispersed within the material, but is also in a heat transfer relationship; iii) a container having a longitudinal axis and in which the first material is placed; the container contains or has a second material disposed therein; , and at least one rib extending inwardly parallel to the longitudinal axis on the inner surface thereof; A container with: A device for dispensing heat-sensitive materials consisting of: 19. 19. The container according to claim 18, wherein the container has two opposing ribs on its inner surface. equipment. 20. The container itself contains microscopic microphones dispersed within the polymer matrix. 19. The device of claim 18, comprising a second material comprising a radio wave absorbing material. 21. Fine-grained microwave absorbing materials include metal particles, metal oxide particles, and ceramic particles. 21. The device of claim 20, wherein the device is selected from the group consisting of carbon particles and carbon particles. 22. Particulate materials include aluminum particles, iron particles and stainless steel particles 22. The device of claim 21, wherein the metal particles are selected from the group consisting of: 23. Fine particle material selected from ferrite, spinel and spinel ferrite 22. The device according to claim 21, wherein the device is a metal oxide particle. 24. Particulate material is made from graphite, carbon black and carbon fiber 22. The device of claim 21, wherein the carbon particles are selected. 25. The inner surface of the container and the surface of the ribs are coated with a second material. 19. The device according to claim 18. 26. 19. The device of claim 18, wherein the surface of the rib is coated with a second material. 27. i) When heated to a predetermined temperature, it changes from a solid or highly viscous state to a liquid state. or change to a low viscosity state, or start polymerization or curing of the first material. ii) a first material activated for at least a predetermined period of time with microwave energy; said first material is heated to at least a predetermined temperature when receiving said first material; a second material that is not dispersed within the material but is in a heat transfer relationship with the material; iii) having a longitudinal axis with a first material disposed therein and a second material disposed therein; a container containing or containing; iv) an outlet through which the first material is dispensed after exposing the device to microwaves; Apparatus for dispensing a heat-sensitive material comprising: a second material on an axis of a container; a feature having parallel longitudinal axes and being encased or embedded in the first material; A device that exists in the form of a thermal rod. 28. Claim 27, wherein the heating rod contains dispersed particulate microwave absorbing material. The device described. 29. Claim in which particulate microwave absorbing material is dispersed within a polymeric matrix 29. The device according to item 28. 30. A particulate microwave absorbing material is embedded in a substantially non-microwave absorbing matrix. 29. The apparatus of claim 28. 31. Fine-grained microwave absorbing materials include metal particles, metal oxide particles, and ceramic particles. 29. The device of claim 28, wherein the device is selected from the group consisting of carbon particles and carbon particles. 32. Particulate materials include aluminum particles, iron particles and stainless steel particles 32. The device of claim 31, wherein the metal particles are selected from the group consisting of: 33. Fine particle material selected from ferrite, spinel and spinel ferrite 32. The device of claim 31, wherein the device is a metal oxide particle. 34. Particulate material is made from graphite, carbon black and carbon fiber 32. The device of claim 31, wherein the carbon particles are selected. 35. i) When heated to a predetermined temperature, it changes from a solid or highly viscous state to a liquid state. or change to a low viscosity state, or start polymerization or curing of the first material. ii) a first material activated for at least a predetermined period of time with microwave energy; said first material is heated to at least a predetermined temperature when receiving said first material; a second material that is not dispersed in the material but is in a heat transfer relationship with the material; iii) having a longitudinal axis in which the first material is disposed and a second material; a container containing or containing; iv) an outlet through which the first material is dispensed after the device has been exposed to microwaves; , v) a microwave transparent isolation jacket substantially enveloping the container; A device for dispensing a heat-sensitive material containing. 36. 36. The insulating jacket according to claim 35, wherein the insulating jacket comprises at least one layer of insulating material. equipment. 37. 37. The device of claim 36, wherein at least one layer of insulating material is a foamed polymer. 38. The insulating jacket comprises at least two layers including an outer layer, one of which is the outer layer. 37. The fiberglass material according to claim 36, which is not a fiberglass or a fiberglass mat. equipment. 39. 36. The apparatus of claim 35, wherein the insulating jacket is attached to the container. 40. The insulating jacket is inserted into and removed from the container to provide a reusable 36. The apparatus of claim 35 forming a rib. 41. 36. The device of claim 35, wherein the insulating jacket includes a non-uniformly insulating outer layer.