Polyester molding composition

US6066694A · kind A · utility

Assignee

• General Electric Company · US

Inventors

• Bret Ja Chisholm · Clifton Park, US
• Robert R. Gallucci · Greenwood, US
• William P. England · Evansville, US
• Patricia A. Hubbard · Olmsted Falls, US
• William D. Richards · Cambridge, US
• Jenny Z. Bu · Newburgh, US

Key dates

• Filing date: Mar 4, 1998
• Grant date: May 23, 2000
• Expiry date: Mar 4, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G63/6884
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A thermoplastic resin composition comprising: PA1 (a) Alkylene aryl polyester copolymers having metal sulfonate units represented by the formula IA: ##STR1## or the formula IB: EQU (M.sup.+n O.sub.3 S).sub.d --A--(OR"OH).sub.p where p=1-3, d=1-3, p+d=2-6, n=1-5, and A is an aryl group containing one or more aromatic rings where the sulfonate substituent is directly attached to an aryl ring, R" is a divalent alkyl group and the metal sulfonate group is bound to the polyester through ester linkages; PA1 (b) An essentially amorphous polycarbonate, polyester carbonate or polyarylate polymer containing recurring units of the formula II: ##STR2## wherein Ar is divalent aromatic residue of a dicarboxylic acid or mixture of dicarboxylic acids and Ar' is the divalent aromatic residue of a dihydric phenol or mixture of dihydric phenols. The composition may further comprise acidic phosphorus based quenchers, rubbery impact modifiers, mineral fillers or reinforcements.