Photopolymerizable mixture including a cationically...

Details Photopolymerizable mixture including a cationically... Photopolymerizable mixture including a cationically...

C - Chemistry, Metallurgy

08

J

204/91.32, 402/1

C08J 3/28 (2006.01) C08F 2/50 (2006.01) C08G 59/68 (2006.01) C08K 5/00 (2006.01)

Patent

CA 1157995

Abstract Cationically plymerisable compounds, for example epoxide compounds, can be polymerised photochemically using a catalyst combination consisting of an aromatic iodonium salt and a ketone of the formula I, II or III Image I Image II Image III in which n is 1 or 2 and Ar, X, X', R1, R2 and R3 are as defined in claim 1. In this combination, the ketones act as a co-catalyst and drastically accelerate the photopolymerisation, although they are not able to initiate a cationic photopolymerisation on their own.

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