Patent ID: 6232396
Filing Date: 2001-05-15
Classification: C08G,C08J

Abstract:
A process for making a silicone emulsion comprising:a) preparing a neutral aqueous surfactant by adding to water an anionic surfactant and a base, and mixing to form a uniform neutral aqueous surfactant having a pH of about 7;b) forming a mixture of approximately equal portions of the surfactant and a polysiloxane;c) homogenizing the mixture to form an emulsion, wherein the emulsion is homogenized until a desired particle size is achieved;d) cooling the homogenized emulsion;e) adding an acid to the cooled emulsion and condensing the emulsion to form a polymer, wherein the polymer is condensed until the viscosity reaches the desired level; andf) neutralizing the condensed emulsion with an effective amount of a neutralizing agentwherein the level of cyclic siloxanes in the emulsion is less than one percent by weight.