Photopolymerizable and thermally polymerizable compositions

Details Photopolymerizable and thermally polymerizable compositions Photopolymerizable and thermally polymerizable compositions

1980-06-09

1981-11-10

Nielsen, Earl A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

20415911, 20415924, 525337, 525341, 525343, 525505, 526193, 526195, 526222, 528 89, 528 90, 528138, 528139, 528141, 528143, 528236, 528240, 528242, 528361, 528408, 528409, C08F 400, C08G 810, C08G 1212, C08G 5968

Patent

active

042999383

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 an aryloxysulfoxonium salt of formula ##STR1## where either R.sup.6 and R.sup.7 separately denote lower alkyl (optionally substituted by halogen and interrupted in the chain by --O-- or --SO.sub.2 --), or an aryl or aryloxy group, or R.sup.6 and R.sup.7 together denote a divalent group forming with the S atom a heterocyclic radical; R.sup.8 denotes an 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,

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Chalkley et al., "Synthesis of Aryloxysulphoxonium Salts", J. Chem. Soc., 1970, 682-686.

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