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US 5,397,813 AGranted
Premium release UV curable epoxysilicone compositions
AssigneeGeneral Electric Company
InventorsRichard P. Eckberg, Roy Griswold
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Abstract
Blends of high viscosity epoxysilicone polymers prepared from pre-crosslinked silicones with polyalkylsiloxy polymers containing long chains of non-functionalized polyalkylsiloxy groups and an effective amount of a suitable iodonium photocatalyst provide an ultraviolet curable low release silicone coating composition.
Claims9
An ultra-violet curable silicone coating composition comprising:
- (a) a polydialkyl-alkylepoxysiloxane fluid having a viscosity of approximately 10 to 2,000 centistokes at 25.degree. C.;
- (b) a pre-crosslinked dialkylepoxysiloxy- or trialkylsiloxy- chain-stopped polydialkyl-alkyl epoxy siloxane fluid having a viscosity of approximately 100 to 100,000 centistokes at 25.degree. C.;
- and
- (c) an effective amount of a bis-(dodecylphenyl) iodonium salt photocatalyst said photocatalytic salt being selected from the salts of the group of acids consisting of hexafluoroantimonic acid, hexafluoroarsenic acid, hexafluorophosphoric acid, and tetrafluoroboric acid.
1 more element
Dependencies are inferred from the claim text.