Patent ID: 7767747

Claim:
A method of making a silicone polymer and organic polymer containing alloy emulsion composition comprising; (i) preparing an emulsion containing a linear silicone polymer free of trifunctional T units RSiO 3/2 and tetrafunctional Q units SiO 4/2 by emulsion polymerization in which (a) the ring of a cyclic siloxane oligomer is opened, in which (b) an hydroxy endblocked siloxane oligomer is condensed, using an acid or base catalyst in the presence of water, or in which (c) an hydrogen endblocked siloxane oligomer and a vinyl endblocked siloxane oligomer are reacted by hydrosilylation using a catalyst; (ii) adding to the emulsion in (i) one or more ethylenically unsaturated organic monomer components for preparing an organic polymer emulsion by free radical emulsion polymerization; and (iii) heating the emulsion from (ii); wherein the polymer alloy emulsion compositions are substantially two-phase emulsion particles composed of a silicone phase and an organic phase, in which there exists no grafting monomers in the composition, and in which there is no chemical crosslinking between the silicone and organic polymer chains in the emulsion.