Patent ID: 6184260
Filing Date: 2001-02-06
Classification: C09D,H01L

Abstract:
A method for preparing a nanoporous silicone resin comprising the steps of(A) 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 and(B) heating the alkylhydridosiloxane resin of step (A) at a temperature sufficient to effect thermolysis of alkyl substituents comprising about 8 to 28 carbon atoms of the alkylhydridosiloxane resin thereby forming a nanoporous silicone resin.