Patent ID: 6013701
Filing Date: 2000-01-11
Classification: B29B,B29C,B29K,C08G,C08L

Abstract:
A method for continuously manufacturing a high consistency or liquid silicone rubber base, comprising continuously kneading the following components in a multiple-stage shear single-screw extruder:(A) a freely-flowable powdered silicone rubber comprising (a) a cross-linkable polydiorganosiloxane with a viscosity exceeding 1.times.10.sup.5 mPa.multidot.s at 25.degree. C. and (b) an inorganic filler, and(B) a high consistency silicone rubber base comprising (a) a cross-linkable polydiorganosiloxane with a viscosity exceeding 1.times.10.sup.5 mPa.multidot.s at 25.degree. C. and (c) a reinforcing silica filler, ora liquid silicone rubber base comprising (d) a cross-linkable polydiorganosiloxane with a viscosity below 1.times.10.sup.5 mPa.multidot.s at 25.degree. C. and (c) a reinforcing silica filler.