Ternary photoinitiator system for curing of epoxy/polyol resin c

Details Ternary photoinitiator system for curing of epoxy/polyol resin c Ternary photoinitiator system for curing of epoxy/polyol resin c

1997-04-11

1999-12-07

Berman, Susan W.

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

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

522 25, 522146, 522170, 522908, 522100, 522103, 4302801, 4302811, C08F 250, G03F 7029, C08G 6528, C08L 6310

Patent

active

059984953

ABSTRACT:
Photocurable, addition polymerizable compositions contain an epoxy resin and a photoinitiator system containing (a) an epoxy resin, (b) a hydroxyl containing material and (c) a photoinitiator system comprising: (i) an iodonium salt; (ii) a visible light sensitizer; and (iii) an electron donor compound, wherein the photoinitiator system has a photoinduced potential of at least about 100 mV relative to a standard solution of 2.9.times.10.sup.-5 moles/g diphenyl iodonium hexafluoroantimonate and 1.5.times.10.sup.-5 moles/g camphorquinone in 2-butanone. The compositions cure on exposure to light in the visible spectrum and are useful in a variety of applications, including dental adhesives and composites.

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