Amoco Corporation

Union Carbide Corporation

James E Harris

Lloyd Mahlon Robeson

Markus Matzner

Louis M Maresca

Paul A Winslow

Robert A Clendinning

James H Kawakami

George T Kwiatkowski

Stephen B Rimsa

Abe Berger

Vilas M Chopdekar

Gary T Brooks

Robert J Cotter

James Spanswick

Lee P McMaster

John P Gavula

Michael Duane Cliffton

Herbert S Chao

Donald R Kelsey

Michael J Michno, Jr

Bernard H Eckstein

John L Melquist

M Jamal El-Hibri

Robert Barclay, Jr

Kenneth E Builta

Kynn J Schulte

Billy K Gore

This application relates to miscible blends of biphenyl containing poly(aryl sulfones) and isopropylidene based polyimides. These blends are suitable for printed wiring board substrates, flexible printed circuit boards, electrical connectors and fabricated articles requiring heat and chemical resistance. A method for extruding these articles is taught.

Miscible blends of imide containing polymers with poly(aryl sulfones)

Blends of a polyether sulfone and the polyimide of the dianhydride sulfonyl bis(phthalic anhydride) ('SPAN') and the diamine 1,4-bis(p-aminocumyl)benzene ('BAP'). The blends will comprise from about 10 to about 90 wt % polyether sulfone, preferably greater than about 50 wt % polyether sulfone, based on the total weights of polyether sulfone and polyimide. The blends exhibit good toughness and improved thermal performance over polyether sulfone alone while remaining readily processable, and have good mechanical properties including unexpectedly high stiffness as determined by high tensile modulus values. Blends of this invention also are surprisingly miscible, defined as exhibiting a single Tg value.

Blends of polyether sulfones and polyimides

Described herein are miscible blends of a poly(aryl ether ketone) and an imide-containing polymer which are useful in the manufacture of extruded film, continuous fiber composites and injection molded articles.

Miscible blends of a poly(aryl ether ketone) and an imide containing

Described are blends of a crystalline poly(aryl ether ketone) and a polyarylate and/or a liquid crystalline polyarylate. These blends exhibit improved mechanical properties and environmental stress rupture resistance.

Blends of a poly(aryl ether ketone) and a polyarylate

A method for the preparation of miscible blends comprising biphenyl-containing poly(aryl sulfones) and polyimides is disclosed. The process comprises adding the monomeric polycarboxylic acid and aromatic diamine components of the polyimide to a suitable polyaryl sulfone in a vented extruder and melt-processing the resulting mixture, thereby polymerizing the monomers to form the polyimide component of the blend.

Process for miscible blends of imide containing polymers with poly(aryl

This invention is directed to novel crystalline chain extended polymers containing segments of crystalline poly(aryl ether ketones). The novel materials are easy to prepare and display excellent toughness, fabricability and very good high temperature and solvent resistance.

Chain-extended poly(aryl ether ketones)

Described herein is a molding composition comprising a blend of a select poly(aryl ketone) and a polyetherimide. These blends have an improved ultimate use temperature and stress crack resistance.

Blends of poly(aryl ketone) and a polyetherimide

This invention is directed to a molded electrical device comprising an electrically conductive pathway and an insulating material, and capable of interconnecting with external circuitry said insulating material comprising a blend of a particular amorphous polymer and a particular crystalline thermoplastic polymer. Also, this invention is directed to a composition suitable for use as an insulating material in an electrical device comprising from about 35 to about 65 weight percent of an amorphous polymer selected from a polyarylethersulfone resin, a polyarylether resin, a polyetherimide or a polyarylate, and from about 65 to about 35 weight percent of a crystalline polymer selected from a poly(arylene sulfide), a polyester or a polyamide.

Molded electrical device and composition therefore

Described herein are miscible blends of polycarbonomides, defined as amide and/or imide containing polymers, and a polyarylate or arylate-carbonate copolymer which are useful in the manufacture of extruded sheets, high temperature connectors, aircraft and mass transportation vehicle interiors, injection molded articles, and extruded profiles and thermoformable articles.

Miscible blends of an amide and/or imide containing polymer and a

Described are blends of a poly(amide imide) and a poly(aryl ether ketone) and, optionally, a poly(arylene sulfide). Three blends exhibit improved solvent resistance and hydrolytic stability.

Blends of a poly(amide imide) and a poly(aryl ether ketone)

Described herein are novel heat-stabilized poly(aryl ether ketone) compositions. Stability is imparted by blending a poly(aryl ether ketone) with an aromatic phosphorus compound and an organic acid having a dissociation constant within a well-defined range.

Stabilized poly(aryl ether ketone) compositions

Described are crystalline block copolymers displaying high glass transition temperatures, excellent mechanical properties, excellent chemical and thermal stability, and good melt processability. These block polymers contain segments of crystalline poly(aryl ether ketones).

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Piscataway, NJ, United States of America

James E Harris