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US 4,348,454 AGranted
Ultraviolet light curable acrylic functional silicone compositions
AssigneeGeneral Electric Company
InventorRichard P. Eckberg
Life of this patent
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Abstract
Acrylic functional siloxane polymer compositions which are especially useful for ultraviolet curable silicone release coating applications are provided as a reaction product of omega-chloro-1-alkenes, dialkylhydrogen chainstopped polydialkylalkylhydrogen siloxane copolymers, catalytic amounts of precious metal complexes and acrylic functional monomers.
Claims17
An acrylic functional polyorganosiloxane composition comprising:
- the reaction product of (A) an omega-haloalkene;
- (B) a dialkylhydrogen chainstopped polydialkylalkylhydrogensiloxane copolymer;
- (C) an amount of precious metal catalyst effective for catalyzing a hydrosilation reaction between said alkene and said siloxane copolymer;
- and (D) an acrylic functional monomer.
1 more element
A process for providing acrylic functional polyorganosiloxane compositions comprising the steps of reacting (A) 1 to 50 parts by weight of an omega-chloro-1-alkene;
- (B) 50 to 99 parts by weight of a dialkylhydrogen chainstopped polydialkyl-alkylhydrogen siloxane copolymer and;
- (C) an amount of precious metal catalyst effective for catalysing a hydrosilation reaction between said alkene and said siloxane copolymer;
- and thereafter further reacting (D) 0.2 to 30 parts by weight of an acrylic functional moiety effective for providing a siloxane copolymer having 0.5 to 50 weight percent acrylic siloxy units.
Dependencies are inferred from the claim text.