Patent ID: 8598245
Filing Date: 2013-12-03
Classification: C08G,C08K,C09D

Abstract:
1. A method of forming an insulating material, comprising: combining a polysilazane, a filler, a cross-linking compound, and a gas-generating compound to form a reaction mixture, the gas-generating compound selected from the group consisting of water, an alcohol, an amine, and combinations thereof; the cross-linking compound selected from the group consisting of an isocyanate, an epoxy resin, and combinations thereof; and the filler selected from the group consisting of fumed silica, glass microspheres, boron carbide, zinc borate, and expanding graphite; reacting the polysilazane with at least one of the gas-generating compounds and an epoxy resin cross-linking compound to form a gaseous product in the reaction mixture; and curing the reaction mixture to form a modified polysilazane comprising a plurality of pores.