Patent Number: 7,709,576

Title: Process for the preparation of sulfonate and sulfonate salt capped polyarylate resins with improved flow

Abstract: A process for preparing a sulfonate terminated polyarylate comprises blending a polyarylate resin with an organic compound to form a reaction mixture, wherein the organic compound contains at least one aliphatic primary amine functional group and at least one other functional group selected from the group consisting of sulfonic acids, sulfonic acid salts, and mixtures thereof, and heating the reaction mixture to a temperature of 225 to C. The temperature of heating is above the glass transition temperature of the polyarylate resin. Sulfonate terminated polyarylates and compositions prepared using the above process, and articles comprising the sulfonate terminated polyarylate compositions, are also disclosed.

Inventors: Gallucci; Robert Russell (Mt. Vernon, IN)

Assignee: SABIC Innovative Plastics IP B.V.

International Classification: C08G 63/685 (20060101); C08G 63/688 (20060101); C08G 63/88 (20060101)

Expiration Date: 5/04/12018