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US 10,568,233 B2Granted
Thermally conductive substrate article
Assignee3M Innovative Properties Company
InventorsRui Yang, Hui Luo, Carl E. Fisher
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Abstract
A thermally conductive article including a polymeric layer comprising a nonwoven polymeric material. In particular, a flexible thermally conductive polymeric layer comprising an epoxy resin and a long-strand polymeric nonwoven material embedded in the epoxy resin. The polymeric nonwoven material may be heat stable at about 280 C.
Claims20
An article comprising:
- a flexible thermally conductive polymeric layer comprising an epoxy resin and a long-strand polymeric nonwoven material embedded in the epoxy resin, wherein the polymeric nonwoven material is heat stable at about 280° C., and wherein the polymeric nonwoven material is a chemically etched polymeric nonwoven material having a density less than about 7 g/m2.
A method of making an article comprising a flexible thermally conductive layer, the method comprising:
- providing a long-strand nonwoven material, the long-strand nonwoven material being heat stable at about 280° C.;
- chemically etching the long-strand nonwoven material in order to reduce a density of the long-strand nonwoven material and to thereby form an etched polymeric nonwoven material, the etched polymeric nonwoven material having a density less than about 7 g/m2;
- embedding the etched polymeric nonwoven material in an epoxy resin;
- and
- curing the epoxy resin to form the thermally conductive layer.
2 more elements
Dependencies are inferred from the claim text.