General Electric Company

Deborah L Allen

Richard B Allen

Robert A Wiercinski

Homogenous blends of polyetherimide polymers and ethylene vinyl acetate copolymers prepared by solution blending techniques or melt blending are characterized by high impact strengths. Further disclosed are laminates of polyetherimide and ethylene vinyl acetate copolymers that are characterized by strong bonding strengths between the layers of the laminates.

Blends of polyetherimide and ethylene vinyl acetate copolymers

Resinous composition comprised of, in physical admixture: (i) at least one copolyester-carbonate resin, (ii) at least one polyarylate resin, and (iii) at least one resin selected from polyphenylene ether resins, polystyrene resins, and mixtures thereof.

Resinous compositions

New and improved thermoplastic compositions are disclosed comprising a blend of an aromatic polycarbonate and a copolymer derived from a glycol portion comprising 1,4-cyclohexanedimethanol and ethylene glycol present in molar ratios of 1:4 to 4:1 respectively and an acid portion comprising an aromatic dicarboxylic acid selected from terephthalic acid, isophthalic acid, and mixtures thereof. The compositions are compatible with, and advantageously contain impact modifiers and flame retardants. The copolymer of the subject invention has a heat distortion temperature of from 60.degree. C. to 70.degree. C. and when incorporated in the thermoplastic compositions of this invention provides polycarbonate-based compositions which exhibit lower heat distortion temperatures while retaining good tensile, flexural and impact strengths. The lower heat distortion temperatures of the compositions permits them to be molded and processed at lower temperatures thereby avoiding the degradation of the materials with concomitant loss in impact strength observed with higher conventional molding temperatures employed with earlier compositions.

High strength, reduced heat distortion temperature thermoplastic

A silicone modified polyetherimide which contains a polyetherimide and a flow-modifying amount of a polyorganosiloxane. Modification of polyetherimides in accordance with this invention results in lower torsional forces and increased throughput rates in extrusion and injection molding operations.

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Dalton, MA, United States of America

Deborah L Allen