Copolymer of silicone macromonomer and alicyclic epoxy monomer
AssigneeDow Corning Toray Silicone Co., Ltd.
InventorsRyuko Manzouji, Tadashi Okawa
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Abstract
There is disclosed a novel silicone-grafted, alicyclic epoxy-functional vinyl polymer prepared by copolymerizing (A) 1 to 80 weight % of a silicone macromonomer which bears a vinyl-polymerizable group at one molecular chain terminal; (B) 5 to 90 weight % of a vinyl-polymerizable, alicyclic epoxy-functional monomer; and (C) 0.01 to 94 weight % of a vinyl-polymerizable non-silicone monomer that is free of alicyclic epoxy functionality. The alicyclic epoxy functionality imparts improved reactivity and the grafted polymer according to the invention provides cured films which exhibit good release and water-repellency.
Claims10
A silicone-grafted, alicyclic epoxy-functional vinyl polymer prepared by copolymerizing
- (A) 1 to 80 weight % of a silicone macromonomer which bears a vinyl-polymerizable group at one molecular chain terminal;
- (B) 5 to 90 weight % of a vinyl-polymerizable, alicyclic epoxy-functional monomer of the formula ##STR11## wherein X is a vinyl-polymerizable group and Y is an alicyclic epoxy group;
- and
- (C) 0.01 to 94 weight % of a vinyl-polymerizable non-silicone monomer that is free of alicyclic epoxy functionality, the total weight percent of components (A), (B) and (C) being 100.
A method for the preparation of a silicone-grafted, alicyclic epoxy-functional vinyl polymer, said method comprising copolymerizing in the presence of a radical polymerization initiator
- (A) a silicone macromonomer which bears a vinyl-polymerizable group at one molecular chain terminal;
- (B) a vinyl-polymerizable, alicyclic epoxy-functional monomer of the formula ##STR12## wherein X is a vinyl-polymerizable group and Y is an alicyclic epoxy group;
- and
- (C) a vinyl-polymerizable non-silicone monomer that is free of alicyclic epoxy functionality.
Dependencies are inferred from the claim text.