Patent ID: 6143360
Filing Date: 2000-11-07
Classification: C09D,H01L

Abstract:
A method for forming a nanoporous silicon resin on a substrate comprising the steps of(A) forming an alkylhydridosiloxane resin by contacting a hydridosilicon containing resin with a 1-alkene comprising about 8 to 28 carbon atoms in the presence of a platinum group metal-containing hydrosilation catalyst effecting formation of an alkylhydridosiloxane resin where at least 5 percent of silicon atoms are substituted with at least one alkyl group comprising about 8 to 28 carbon atoms and at least 45 percent of silicon atoms are substituted with at least one hydrogen atom,(B) coating on to a substrate the alkylhydridosiloxane resin, and(C) heating the coated substrate to a temperature sufficient to effect curing of the alkylhydridosiloxane resin coating and thermolysis of alkyl groups comprising about 8 to 28 carbon atoms of the alkylhydridosiloxane thereby forming a nanoporous silicone resin coating on the substrate.