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Ternary photoinitiator system for curing of epoxy/polyol resin compositions
Ternary photoinitiator system for curing of epoxy/polyol resin compositions
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机译:用于固化环氧树脂/多元醇树脂组合物的三元光引发剂体系
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摘要
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 sa (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 2.9x10-5 moles/g diphenyl iodonium hexafluoroantimonate and 1.5x10-5 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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