Patent ID: 8476379
Filing Date: 2013-07-02
Classification: C08G,C08K,C09D

Abstract:
1. A silphenylene skeleton-containing silicone type polymer comprising a repeating unit represented by the following general formula (1) and having a weight average molecular weight of 5,000 to 40,000, wherein R wherein Z and W are each a divalent organic group selected from groups represented by the following formulae; m and p are each 0 or 1; n is 0, 1 or 2; R 5 and R 6 are each an alkyl or alkoxyl group having 1 to 4 carbon atoms and may be the same or different from each other; and R 7 to R 10 are each a hydrogen atom or a carboxyl-containing organic group and may be the same or different from each other, wherein at least one of R 7 to R 10 is a carboxyl-containing organic group.