| 摘要 |
<p>The present invention refers to soluble silicone resin compositions having good solution stability, to a method for their preparation, to nanoporous silicone resins and coatings and to a method of making those. The silicone resins comprise the reaction product of a mixture comprising (A) 15-70 mol% of a tetraalkoxysilane described by formula Si(OR<1>)4, where each R<1> is an independently selected alkyl group comprising 1 to 6 carbon atoms, (B) 12 to 60 mol% of a hydrosilane described by formula HSiX3, where each X is an independently selected hydrolyzable substituent, (C) 15 to 70 mole percent of an organotrialkoxysilane described by formula R<2>Si(OR<3>)3, where R<2> is a hydrocarbon group comprising 8 to 24 carbon atoms or a substituted hydrocarbon group comprising a hydrocarbon chain having 8 to 24 carbon atoms and each R<3> is an independently selected alkyl group comprising 1 to 6 carbon atoms; in the presence of (D) water, (E) hydrolysis catalyst, and (F) organic solvent for the reaction product.</p> |
