发明授权
US06232424B1 Soluble silicone resin compositions having good solution stability 有权
具有良好溶液稳定性的可溶性有机硅树脂组合物

Soluble silicone resin compositions having good solution stability
摘要:
Soluble silicone resin compositions having good solution stability and a method for their preparation. The silicone resin comprises the reaction product of a mixture comprising (A) 15-70 mol % of a tetraalkoxysilane described by formula Si(OR1)4,  where each R1, is an independently selected alkyl group comprising 1 to about 6 carbon atoms, (B) 12 to 60 mol % of an organosilane described by formula R4SiX3,  where R4, is selected from the group consisting of alkyl groups comprising 1 to about 6 carbon atoms and phenyl and each X is an independently selected hydrolyzable substituent, (C) 15 to 70 mole percent of an organotrialkoxysilane described by formula R2Si(OR3)3,  where R2, is a hydrocarbon group comprising about 8 to 24 carbon atoms or a substituted hydrocarbon group comprising a hydrocarbon chain having about 8 to 24 carbon atoms and each R3, is an independently selected alkyl group comprising 1 to about 6 carbon atoms; in the presence of (D) water, (E) hydrolysis catalyst, and (F) organic solvent for the reaction product.
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