SILICONE COMPOSITION FOR WATER-REPELLENT COATING

摘要

A silicone composition for a water-repellent coating comprising (A) a polydimethylsiloxane expressed by the general formula: (RO)3Si-Q-{(CH3)2SiO}n-(CH3)2Si-Q-Si(OR)3, where R is a C1 to C10 monovalent hydrocarbon group, Q is an oxygen atom or a C2 to C10 alkylene group, and n is an integer from 10 to 1000; (B) an alkoxysilane partial hydrolysate/condensate, where the alkoxysilane is described by general formula: R<1>xSi(OR<2>)4-x, where R<1> is a C1 to C6 monovalent hydrocarbon group, R2 is a C1 to C6 alkyl group, and x is an integer from 0 to 3; (C) an organotitanium-based catalyst; (D) an aliphatic hydrocarbon solvent or ester-based solvent; and (E) an alcohol-based solvent.