A screw for a multiple screw extruder comprises at least two conveying sections for
transporting a composition comprising a polymeric resin from the feed end to the discharge …

BACKGROUND [0002] The invention generally relates to a block copoly mer that comprises
at least one poly (arylene ether) block and at least one other polymer block. Further, the …

Applicants have discovered a Superior process for the production of polycarbonate using an
ester-substituted car bonate. In accordance with an embodiment of the present invention …

4,110,843 A 8/1978 Skidmore 5,283,021. A 2/1994 Shih 4,117,548 A 9/1978 Craig
5,324,795. A 6/1994 Suenaga 4,161,470 A 7/1979 Calundann 5,338,112 A 8/1994 Boden et …

(57) ABSTRACT A thermoplastic composition is disclosed, comprising the reaction product
of a polyester polycarbonate comprising a polyester unit and a polycarbonate unit; a …

US6924350B2 - Method of separating a polymer from a solvent - Google Patents
US6924350B2 - Method of separating a polymer from a solvent - Google Patents Method of …

A method of separating a polymer-solvent mixture is described wherein a polymer-solvent
mixture is heated prior to its introduction into an extruder comprising an upstream vent …

Polycarbonates incorporating terminal carbonate groups derived from ester-substituted
activated carbonates, for example terminal methyl salicyl carbonate (TMSC) derived from the …

(57) ABSTRACT A method of making polycarbonate includes the steps of forming
polycarbonate by a melt transesterification method using an activated diaryl carbonate, and …

US7326764B2 - Transparent compositions, methods for the preparation thereof, and
articles derived therefrom - Google Patents US7326764B2 - Transparent compositions …