PRIMER ADHESION PROMOTER AND PRIMER COMPOSITION

摘要

A mixture of an organosiloxane of four to 20 silicon atom and containing at least three silicon-bonded hydrogen atoms and a modified organosiloxane of five to 21 silicon atoms and containing an average of one unit of (CH3COO)3SiCH2CH2 (CH3)SiO or (CH3COO)3SiCH2CH2(CH3)2SiO and at least two silicon-bonded hydrogen atoms is an adhesion promoter in primer compositions for adhering silicone elastomers to substrates.