Polymerisation by means of sulfoxonium salts

Details Polymerisation by means of sulfoxonium salts Polymerisation by means of sulfoxonium salts

C - Chemistry, Metallurgy

08

J

402/256, 402/263

C08J 3/24 (2006.01) C08G 8/28 (2006.01) C08G 59/68 (2006.01) C08G 85/00 (2006.01) C08J 3/28 (2006.01) C08K 5/00 (2006.01) C08K 5/41 (2006.01) C08L 87/00 (2006.01) G03F 7/029 (2006.01)

Patent

CA 1134537

ABSTRACT Substances (I) capable of being converted into higher-molecular weight materials under the influence of a cationic catalyst, such as 1,2- epoxides, aminoplasts, vinyl monomers or prepolymers, or phenoplasts, are so converted by exposure to actinic irradiation or by heating in the presence of as aryloxysulphoxonium salt formula Image II where either R6 and R7 separately denote lower alkyl (optionally sub- stituted by halogen and interrupted in the chain by -O- or -SO2-), or an aryl or aryloxy group, or R6 and R7 together denote a divalent group forming with the S atom a heterocyclic radical; R8 denotes a aryl group; M denotes an atom of a metal or metalloid; X denotes a halogen atom; and n is 4, 5, or 6 for instance, p-chlorophenoxy-p-tolyl-p-phenoxysulphoxonium hexaflourophosphate and 1-phenoxy-1-oxidotetrahydrothiophenium tetraflourborate. When I is an epoxide resin or a resol resin, it may be photopolymerised by means of II and subsequently crosslinked with a latent heat-curing agent.

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