Ternary photoinitiator system for curing of epoxy resins

Details Ternary photoinitiator system for curing of epoxy resins Ternary photoinitiator system for curing of epoxy resins

1997-04-11

2000-02-15

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 15, 522 25, 522170, 522908, 523116, 528307, 528406, 528421, 528408, C08F 250, A61K 608, C08G 6504

Patent

active

060254068

ABSTRACT:
Photocurable, addition polymerizable compositions contain an epoxy resin and a photoinitiator system containing (a) an epoxy resin and (b) 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 0 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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