Water-tree stable electrical insulating polymeric compositions

C - Chemistry – Metallurgy – 08 – K

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C08K 5/55 (2006.01) H01B 3/30 (2006.01)

Patent

CA 1290933

ABSTRACT OF THE DISCLOSURE 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.

541545

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