Silicone-modified thermoplastic resin.

摘要

There is disclosed a thermoplastic resin composition comprising a thermoplastic resin and an organopolysiloxane having a viscosity of at least 150,000 centistokes at 25 DEG C, wherein the organopolysiloxane contains no more than 2,000 parts per million by weight of low molecular weight siloxane species having a vapor pressure of >/= 10 mm Hg at 200 DEG C. These compositions are particularly useful as injection molding resins and show superior results to prior art systems with respect to mold staining during molding, absence of gloss at molding surfaces, lack of "silver streaks" in molded objects and improved weld line strength.