Abstract: An impact resistant polycarbonate composition having improved resistance to polymer degradation comprises an aromatic polycarbonate in admixture with an elastomer-modified graft copolymer that is the product of an emulsion polymerization process, wherein composition is a product of compounding the aromatic polycarbonate and the elastomer-modified graft copolymer in the presence of a buffer comprising a potassium salt of phosphoric acid.

Abstract: Disclosed herein are methods and compositions of blended polycarbonate compositions with improved mold release characteristics. The resulting compositions, comprising one or more polycarbonate polymers, an impact modifier, a polycarbonate-siloxane copolymer, and an alkyl sulfonate salt, can be used in the manufacture of articles requiring improved mold release characteristics while still retaining the advantageous physical properties of blended polycarbonate compositions. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

Abstract: An impact resistant polycarbonate composition having improved resistance to polymer degradation comprises an aromatic polycarbonate in admixture with an elastomer-modified graft copolymer that is the product of an emulsion polymerization process, wherein composition is a product of compounding the aromatic polycarbonate and the elastomer-modified graft copolymer in the presence of a buffer comprising a potassium salt of phosphoric acid.

Abstract: This disclosure relates generally to methods for the manufacture of transparent polymer compositions exhibiting refractive indices similar or even identical to the refractive index of polycarbonate. Also disclosed are polymer blends comprising the disclosed polymer compositions blended with one or more convention polycarbonate.

Abstract: This disclosure relates generally to methods for the manufacture of transparent polymer compositions exhibiting refractive indices similar or even identical to the refractive index of polycarbonate. Also disclosed are polymer blends comprising the disclosed polymer compositions blended with one or more convention polycarbonate.

Abstract: A thermoplastic composition comprising in combination a polycarbonate, an impact modifier composition comprising ABS or BABS, a second impact modifier different from BABS or ABS, an aromatic vinyl copolymer, and a gel-type low gloss additive, wherein the 60° gloss of the thermoplastic composition is measured to be less than or equal to 11.3 GU on 3 millimeter chips having a textured surface when measured according to ASTM D2457, and wherein a molded sample of the thermoplastic composition has a low temperature notched Izod impact at ?40° C. of at least 30 KJ/m2 when measured according to ISO 180/1A is disclosed. The composition has low gloss and a significantly improved balance of properties.

Abstract: A thermoplastic composition comprising in combination a polycarbonate, a polycarbonate-polysiloxane copolymer, an impact modifier composition comprising ABS or BABS, a second impact modifier different from BABS or ABS, an aromatic vinyl copolymer, and optionally a gel-type low gloss additive, wherein the 60° gloss of the thermoplastic composition is measured to be less than or equal to 14 GU on 3 millimeter chips having a textured surface when measured according to ASTM D2457, and wherein a molded sample of the thermoplastic composition has a low temperature notched Izod impact at ?40° C. of at least 65 KJ/m2 when measured according to ISO 180/1A is disclosed. The composition has low gloss, high low temperature impact, and a significantly improved balance of properties.

Abstract: A thermoplastic composition comprising a polycarbonate, a polycarbonate-polysiloxane copolymer, an impact modifier composition comprising ABS or BABS, a second impact modifier different from BABS or ABS, and an aromatic vinyl copolymer is disclosed. The thermoplastic composition has improved molding capability.

Abstract: A thermoplastic composition comprising a polycarbonate, an impact modifier, an aromatic vinyl copolymer, and a polyorganosiloxane has excellent mechanical properties, in addition to suitable low gloss performance. An article may be formed by molding, extruding, shaping or forming such a composition to form the article.

Abstract: A thermoplastic composition comprising a polycarbonate, a polycarbonate-polysiloxane copolymer, an impact modifier composition comprising ABS or BABS, a second impact modifier different from BABS or ABS, and an aromatic vinyl copolymer is disclosed. The thermoplastic composition has improved molding capability.

Abstract: A thermoplastic composition comprising in combination a polycarbonate, a polycarbonate-polysiloxane copolymer, an impact modifier composition comprising ABS or BABS, a second impact modifier different from BABS or ABS, an aromatic vinyl copolymer, and optionally a gel-type low gloss additive, wherein the 60° gloss of the thermoplastic composition is measured to be less than or equal to 14 GU on 3 millimeter chips having a textured surface when measured according to ASTM D2457, and wherein a molded sample of the thermoplastic composition has a low temperature notched Izod impact at ?40° C. of at least 65 KJ/m2 when measured according to ISO 180/1A is disclosed. The composition has low gloss, high low temperature impact, and a significantly improved balance of properties.

Abstract: A thermoplastic composition comprising in combination a polycarbonate, an impact modifier composition comprising ABS or BABS, a second impact modifier different from BABS or ABS, an aromatic vinyl copolymer, and a gel-type low gloss additive, wherein the 60° gloss of the thermoplastic composition is measured to be less than or equal to 11.3 GU on 3 millimeter chips having a textured surface when measured according to ASTM D2457, and wherein a molded sample of the thermoplastic composition has a low temperature notched Izod impact at ?40° C. of at least 30 KJ/m2 when measured according to ISO 180/1A is disclosed. The composition has low gloss and a significantly improved balance of properties.

Abstract: A method is provided for making siloxane polycarbonate copolymers and blends of other polycarbonates with such copolymers wherein the copolymers and blends have excellent transparency and physical characteristic.

Abstract: A method is provided for making siloxane polycarbonate copolymers and blends of other polycarbonates with such copolymers wherein the copolymers and blends have excellent transparency and physical characteristic.

Abstract: Low temperature ductile and impact resistant compositions are provided which comprise a polycarbonate resin and a dual graft multi-stage polyorganosiloxane/polyvinyl-based graft polymer composition. Also provided are thermally stabilized multi-stage polyorganosiloxane/polyvinyl-based graft polymers which have improved color-imparting and impact resistance-imparting properties and thermoplastic compositions containing the same.