Vinyl acetate-silicone copolymer resin and method for producing same

A vinyl acetate-silicone copolymer resin obtained by graft polymerization of vinyl acetate (B) onto an organopolysiloxane (A) of the following general formula (1), wherein

• a weight ratio of the organopolysiloxane (A) to the vinyl acetate (B) is (A):(B)=30:70 to 70:30,
• wherein R1 is the same or different substituted or unsubstituted monovalent hydrocarbon group of 1 to 20 carbon atoms selected from the group consisting of alkyl groups, cycloalkyl groups, aryl groups, alkenylaryl groups, alkenylaralkyl groups, a substituted one in which a part or all hydrogen atoms of the above groups are substituted with a halogen atom, a carboxyl group, an alkoxy group, an alkenyloxy group, an amino group, and an alkyl-, alkoxy- or (meth)acryloxy-substituted amino group, R2 is a mercapto, acryloxy or methacryloxy group-substituted alkyl group having 1 to 6 carbon atoms, or a vinyl group, X is the same or different substituted or unsubstituted monovalent hydrocarbon group of 1 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, or a hydroxyl group, Y is the same or different group of X or —[O—Si(X)2]d—X, at least one of Y being a hydroxyl group or —[O—Si(X)2]d-X, at least two of X and Y being hydroxyl groups, Z is an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, or a hydroxyl group, a is a positive number of 0 to 1,000, b is a positive number of 100 to 10,000, c is a positive number of 1 to 10, and d is a positive number of 1 to 1,000, and wherein the vinyl acetate-silicone copolymer resin is an emulsion having a viscosity (25° C.) of 1 to 500 mPa·s.