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Microwavable heat releasing and absorbing composition and container
| Details |
Inventors: Johnson, Michael L.;
Assignee: Dura Therm Inc. (Oak Grove, LA)
Primary Examiner: Jones; Larry
Assistant Examiner:
Attorney, Agent or Firm: Litman; Richard C.
A microwavable heat releasing and absorbing composition comprises paraffin wax, distilled water, polyacrylamide, mineral oil, glycerin, polypropylene glycol, acid and corn starch. By variation of the relative ratios of the components, the composition can take on a variety of consistencies and viscosities. The composition is capable of retaining its temperature for an extended period of time despite surrounding variations in temperature. It is also capable of maintaining its pliability and consistency over a wide range of temperatures. The composition has a high vapor point and is well-suited for heating in a microwave oven, or cooling in a freezer. The composition when placed in a suitable container can be used in hot-and-cold packs, as well a variety of other applications. Preferably, the container is enclosed in a vinyl package with transverse ribs. |
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DETAILED DESCRIPTION The present invention provides a microwavable heat releasing and absorbing composition comprising paraffin wax, distilled water, polyacrylamide, mineral oil, glycerin, polypropylene glycol, acid and corn starch.
By variation of the relative ratios of the components, the composition can take on a variety of consistencies and viscosities.
The composition has a high effective specific heat, and thus is capable of retaining its temperature for an extended period of time despite surroundng variations in temperature.
It is also capable of maintaining its consistency over a wide range of temperatures.
The composition has a high vapor point and is well-suited for heating in a microwave oven, or cooling in a freezer.
The invention can be used in hot-and-cold packs, as well as variety of other applications.
Preferably, it is enclosed in a vinyl package with transverse ribs.
Accordingly, it is a principal object of the invention to provide a microwavable composition that will absorb and release a substantial amount of heat.
It is another object of the invention to provide a composition which avoids vaporization, even when heated rapidly in a microwave oven to a temperature near the boiling point of water.
It is a further object of the invention to provide a composition, the consistency, texture, and pliability of which can be varied by variation of the relative ratio of components.
Yet a further object of the invention is to provide a composition having a consistency such that it will not spill out of a container containing it, even if the container is ruptured.
Yet another object of the invention is to provide a composition that will retain a moisture storing substance in uniform distribution.
A still further object of the invention is to provide a microwavable heating and cooling composition in a container constructed in such a way that the container maintains its integrity and the composition avoids puffing, despite microwaving.
Yet a further object of the invention is to provide a composition that will not deteriorate or become unusable, despite repeated, frequent, rapid heatings to high or non-uniform temperatures
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