Patent ID: 8580862
Filing Date: 2013-11-12
Classification: B29C,C08J

Abstract:
1. A continuous process of making a silicone-in-water emulsion in an extruder, comprising: (i) forming a silicone polymer having a viscosity of at least 10,000 mm (ii) optionally, neutralizing or stripping the silicone polymer in the extruder, wherein stripping can occur before, after, or without addition of a neutralizing agent; (iii) cooling the silicone polymer in a cooling zone of the extruder at a temperature between about 0° C. and about 60° C.; (iv) optionally, mixing one or more emulsifiers with the silicone polymer in the extruder; (v) optionally, adding water to the silicone polymer in the extruder; (vi) applying shear to form a silicone-in-water emulsion in the extruder; (vii) optionally, diluting the emulsion in the extruder;