General Electric Company

Martin John Lindway

Robert Russell Gallucci

Yimin Jin

Sterling B Brown

James Robert Wilson

Peter Joseph Codella

Raymond Lee Utley

Dennis Allen Kopp

Jenny Z Bu

Jennifer L David

Kang Xi

Harry Van Baal

A composition useful in the manufacturing of plastic cookware includes a polyetherimide resin and an acidic additive selected from the group consisting of aliphatic carboxylic acids having a vapor pressure less than one atmosphere at 300&deg; C., aromatic carboxylic acids having a vapor pressure less than one atmosphere at 300&deg; C., and combinations comprising at least one of the foregoing acidic additives. In one embodiment, the composition further comprises an additional resin, such as a polyester resin. The acidic additive is effective in improving the mold release and increasing the melt flow of the composition. Articles including the composition and a method for preparing the composition are also described.

Polyetherimide composition, method, and article

A process for the preparation of a reactive friable polyimide powder comprises dissolving an aromatic dianhydride and an organic diamine in a high-boiling, aprotic organic solvent to form a reaction solution; heating the reaction solution under imidization conditions to form an insoluble reactive polyimide and to effect substantially complete distillation of the water of reaction out of the reaction solution; and separating the insoluble reactive polyimide from the reaction solution to form a reactive friable polyimide powder.

Preparation of polyimide polymers

A molded article suitable for direct application of a reflective metal coating includes an amorphous thermoplastic or thermoplastic blend having a glass transition temperature greater than about 170&deg; C. and at least one thermally stable colorant that contributes to the article's dark appearance. The article has excellent dimensional stability, and the surface to which a metal coating can be applied exhibits low gloss. Application of a metal coating to the molded article produces a metalized surface with high total reflectivity, low diffuse reflectivity, and low haze. Compositions and methods for forming the article are described.

Dark colored thermoplastic compositions, articles molded therefrom, and article preparation methods

Color stable thermoplastic resin compositions include a polyetherimide resin, polyester resin and phosphorus and/or phenol containing color stabilizers, and exhibit resistance to elevated temperature, elimination of black specks, and improved mechanical properties.

Polyetherimide resin/polyester resin blends

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Newburgh, IN, United States of America

Martin John Lindway