Patent ID: 8597624

Claim:
A method of producing an aqueous emulsion of a polyorganosiloxane and a wax, wherein an organopolysiloxane is polymerized in an admixture with a molten wax, thereby forming a blend of the wax with an organopolysiloxane of increased molecular weight, and the blend of polymer and molten wax is emulsified in water in the presence of a surfactant, wherein the organopolysiloxane is a substantially linear organopolysiloxane containing at least one hydroxyl or hydrolysable group bonded to silicon and is polymerized by catalysed condensation of the hydroxyl or hydrolysable group(s) to form siloxane bonds or wherein the organopolysiloxane comprises a cyclic organopolysiloxane and is polymerized by a catalysed process of ring opening of the cyclic organopolysiloxane to form siloxane bonds.