Abstract: There is disclosed a silicone-grafted vinyl polymer and a method for the preparation thereof, said polymer having grafted silicone side chains of the formula: ##STR1## as well as grafted silicone side chains of the formula: ##STR2## wherein R independently represents a monovalent hydrocarbon group which is free of aliphatic unsaturation, R.sup.1 is a divalent group selected from hydrocarbon groups or alkyleneoxyalkylene groups, a is 0 or 1 and n is an integer having a value of at least 1.

Abstract: A process for preparing a compound having the formula ##STR1## is disclosed, said process comprising hydrolyzing an organosilicon compound of the formula ##STR2## wherein X is a radically polymerizable group-functional organic group, R.sup.1 is independently selected from monovalent hydrocarbon groups that are free of aliphatic unsaturation, R.sup.2 is independently selected from the group consisting of hydrogen and a monovalent hydrocarbon group and m is an integer having a value of 1 to 3.

Abstract: The present invention relates to a radiation curable silicone release coating composition comprising (A) an alicyclic epoxy-functional silicone graft copolymer, (B) an organic compound having at least 2 alicyclic epoxy groups, and (C) a photocuring catalyst. The compositions of this invention are highly adhesive to a variety of substrates, have excellent coatability, and the release resistance values of films having the composition of this invention cured thereon can be adjusted over a wide range of values.

Abstract: The present invention relates to a radiation curable silicone release coating composition comprising an alicyclic epoxy-functional silicone graft copolymer and a photocuring catalyst. The release coatings of this invention upon curing by exposure to UV light form release films that are highly adhesive for a variety of substrates, have an excellent coatability, and its release resistance can be adjusted over a wide range of values.

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.

Abstract: A highly efficient method for preparing an organopolysiloxane which contains little low molecular weight organosiloxane is disclosed, said method comprising:(I) polymerizing(A) cyclic trisiloxane having the formula ##STR1## wherein R is a monovalent hydrocarbon radical, excluding aryl radical, using as a polymerization initiator(B) a lithium compound having the formula ##STR2## in which R' is independently selected from monovalent hydrocarbon radicals, X and X' are selected from the group consisting of hydrogen and lithium, with the proviso that one of X and X' must be lithium, and m is an integer having a value of at least 1, optionally, in the presence of(C) a molecular-weight regulator selected from the group consisting of water and a compound having the formula ##STR3## in which R' has its previously defined meaning and p is an integer having a value of at least 1,said polymerization taking place in the presence of both(D) a nitrile compound and(E) an active hydrogen-free polar solvent; and(II) terminatin