Mercaptophenyl ketones as initiators for the photopolymerization

Details Mercaptophenyl ketones as initiators for the photopolymerization Mercaptophenyl ketones as initiators for the photopolymerization

1979-05-16

1981-07-21

Anderson, Harold D.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

526208, 526222, 430286, C08F 246

Patent

active

042797217

ABSTRACT:
Mixtures of (A) a mercaptophenyl ketone of the formula I ##STR1## in which n is 1 or 2, Ar is an unsubstituted or substituted aryl radical or a hetero-aromatic radical, R.sup.1 is hydrogen, alkyl or, if n is 1, also --SCH.sub.2 X and X, if n is 1, is one of the groups --CH(R.sup.2)--OH, --CH(R.sup.2)--O--CO--R.sup.5, --CH.sub.2 SH or --(CH.sub.2).sub.1-3 --NR.sup.3 R.sup.4, in which R.sup.2 is hydrogen, methyl, phenyl or one of the groups --CH.sub.2 OH, --CH.sub.2 --NR.sup.3 R.sup.4 or --CH.sub.2 --OR.sup.6, R.sup.3 and R.sup.4 independently of one another are hydrogen, alkyl or hydroxyalkyl, or R.sup.3 and R.sup.4 together are 1,4-butylene, 1,5-pentylene or 3-oxa-1,5-pentylene, and R.sup.5 and R.sup.6 are monovalent hydrocarbon radicals, and X, if n is 2, is alkylene, vinylene, phenylene or one of the divalent groups --CH.sub.2 S--SCH.sub.2 --, --CH(R.sup.2)--O--CO--O--CH(R.sup.2)--, --CH(R.sup.2)--O--CO--R.sup.7 --CO-- OCH(R.sup.2)--, --CO--O--R.sup.8 --O--CO--, --CH.sub.2 COO--R.sup.8 --OOCCH.sub.2 -- or --CH(OH)--CH.sub.2 --O--R.sup.8 --O--CH.sub.2 --CH(OH)--, in which R.sup.7 is a divalent hydrocarbon radical or --NH--R.sup.9 --NH--and R.sup.8 and R.sup.9 are divalent hydrocarbon radicals, and (B) an organic amine are effective initiators for the photopolymerization of ethylenically unsaturated compounds or for the photochemical crosslinking of polyolefins.

REFERENCES:
patent: 3386904 (1968-06-01), Petropoulos
patent: 3720635 (1973-03-01), Metzner et al.
patent: 3759807 (1973-09-01), Osborn et al.
patent: 3903322 (1975-09-01), Ravve et al.
patent: 4054682 (1977-10-01), Kuesters et al.
patent: 4054684 (1977-10-01), Ceintrey et al.

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