WATER-TREE STABLE ELECTRICAL INSULATING POLYMERIC COMPOSITIONS

摘要

POLYMER COMPOSITION A composition suitable for use as electrical insulation comprises a polymeric component and a water tree retardant additive which is (A) an organo orthoborate or partial ester of boric acid having the general formula B(OR)(OR1)(OR2) in which R is an alkyl, aryl, aralkyl, alkaryl or cycloalkyl group having from 4 to 24 carbons and R1 and R2 are individually hydrogen or an alkyl, aryl, aralkyl, alkaryl or cycloalkyl group having from 4 to 24 carbon atoms or (B) an organo orthoborate or partial ester of boric acid with a polyhydric hydrocarbyl alcohol.