Light curable dental composition

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Compositions to be polymerized by wave energy wherein said...

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522 8, 522120, 522121, 522 77, 522 24, 522 46, 523116, 526320, 4332281, A61K 608, C08F 250, C08F 414, C08F 436

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047466855

ABSTRACT:
A light curable dental composition is provided. The composition comprises an ethylenic unsaturated compound and a light polymerization initiator. The light polymerization initiator is selected from a combination of an organic peroxide and a pyrylium salt compound of: ##STR1## Wherein R.sub.1, R.sub.2, and R.sub.3 each represents a hydrogen atom, an alkyl group and the like, X stands for an oxygen or sulfur atom and Y for an anionic functional group; a polyperoxy ester containing a benzophenone group; and a combination the polyperoxy ester and an .alpha.-diketone.

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patent: 4474868 (1984-10-01), Yamaoka
patent: 4525232 (1985-06-01), Rooney
patent: 4533446 (1985-08-01), Conway
Ishimaru "Photosensitive--" Chemical Abstracts vol. 91, No. 10, Abstract No. 81587a, 1979.
Hitachi (Ishimaru) "Photosensitive--" Derwent Abstract 79-28693 B/15, 1979.
Chimia Y Technologia, vol. 6, 1980, pp. 23-25.
Komai, J59-197401 of Nov. 9, 1984, Japio Abstract No. 84-197401.
Komai, EP-126541-A of 28 Nov. 1984, Derwent Abstract No. 84-295941/48.

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