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US 6,270,836 B1Granted
Gel-coated microcapsules
AssigneeFrisby Technologies, Inc.
InventorMark E. Holman
Life of this patent
Estimating the term…
Abstract
The invention relates to gel-coated microcapsules which have improved mechanical stress- and flame-resistance. A method for making the gel coated microcapsules is also provided. Phase change materials can be included in the microcapsules to provide thermal control in a wide variety of environments.
Claims24
Thermal control material comprising:
- a base material;
- and
- a plurality of gel-coated microcapsules within the base material wherein the microcapsules comprise a phase-change material encapsulated in a polymeric shell, including a continuous metal oxide gel coating.
A method of imparting flame-resistant temperature stabilization to microcapsules in a foam, the method comprising:
- providing a foam of the type having a base material with a plurality of gel-coated microcapsules in a manner so that the microcapsules are embedded within the base material, wherein the microcapsules comprise a phase-change material encapsulated in a polymeric shell, including a continuous metal oxide gel coating.
A heat transfer fluid comprising:
- the gel-coated microcapsules wherein the microcapsules comprise a phase-change material encapsulated in a polymeric shell, including a continuous metal oxide gel coating, and
- a carrier fluid.
A method of heating a thermal control material, said method comprising:
- a) providing a base material with a plurality of gel-coated microcapsules, wherein the microcapsules comprise a phase-change material encapsulated in a polymeric shell, including a continuous metal oxide gel coating;
- and
- b) exposing the thermal control material to a microwave source for time sufficient to cause heating of said thermal control material.
Dependencies are inferred from the claim text.