NOVEL SILPHENYLENE SKELETON-CONTAINING SILICONE TYPE POLYMER COMPOUND HAVING A CARBOXYL GROUP AND A METHOD FOR PRODUCING THE SAME

摘要

PURPOSE: A silphenylene skeleton-containing silicone type polymer is provided to satisfy both chemical resistance and adhesiveness to a substrate and to enable the use as a material for a thermosetting resin for forming coatings for protecting substrates, circuits, and interconnections.;CONSTITUTION: A silphenylene skeleton-containing silicone type polymer comprises a repeating unit represented by chemical formula (1) and has a weight average molecular weight of 5,000 to 40,000. In chemical formula (1), R1 to R4 are each a monovalent hydrocarbon group having 1 to 12 carbon atoms and may be the same or different from each other; k is an integer of 1 to 100; a and b are each 0 or a positive number, and c and d are each a positive number, and they satisfy 0(c+d)/(a+b+c+d)=1.0; X is a divalent organic group represented by chemical formula (2); and Y is a divalent organic group represented by chemical formula (3).;COPYRIGHT KIPO 2012