Standard Oil Company (indiana)

Amoco Corporation

The Standard Oil Company

Robert B Hanson

James R Stephens

Gary T Brooks

Ronald E Bockrath

Bill W Cole

Gary T Brooke

Jeffrey D Felberg

The present invention is directed to fibers which are sized or coated on the surface with a polyamide-amic acid, an amide-imide polymer, an amide-imide copolymer or mixtures of these materials and to composites prepared from the sized fibers.

Polyamide-imide sized fibers

Polyamide-imides derived from trimellitic acid compounds and an aromatic diamine are improved in moisture resistance when from 10 to about 90 mole % of the trimellitic acid compound is replaced by a biphenyl tetracarboxylic acid compound.

Amide-imide resin of lowered water absorption for molding and composite

Novel polymers and molding compositions are prepared from acyl halide derivatives of tricarboxylic acids and diamines and about 1 to about 10 percent by weight of phthalic anhydride, trimellitic anhydride or aniline moieties. The polymers are useful in engineering plastics.

Injection moldable polyamide imide from trimellitic anhydride end capped

Novel polymers and molding compositions are prepared from acyl halide derivatives of tricarboxylic acids and diamines and about 1 to about 10 percent by weight of phthalic anhydride, or trimellitic anhydride or aniline moieties. The polymers are useful in engineering plastics.

Injection moldable polymer comprising phthalic anhydride, aniline and

Novel copolymers and molding compositions are prepared from acyl halide derivatives of dicarboxylic acids, acyl halide derivatives of tricarboxylic aromatic anhydrides and aromatic diamines and about 1 to about 10 percent by weight of phthalic anhydride moieties. Also, glass filled copolymers are prepared. The copolymers are useful as engineering plastics.

Injection moldable polymers containing phthalic anhydride

Novel copolymers and molding compositions are prepared from acyl halide derivatives of dicarboxylic acids, acyl halide derivatives of tricarboxylic aromatic anhydrides and aromatic diamines. Also glass filled copolymers are prepared. The copolymers are useful as engineering plastics.

Glass filled polyamide-imide phthalamide copolymer

An improved process for preparing amide-imide polymers which at a percent solids of 98.+-.2% have a melt flow in the range of about 1 to about 200 g/10 min. by the addition of an effective amount of trimellitic acid anhydride to 4-trimellitoyl anhydride halide (4-TMAH) and one or more aromatic diamines during reaction in an organic solvent.

Process for controlling the melt flow of amide-imide polymers

Water-soluble polyesterimide resin compositions are prepared by in situ reaction of a mixture of glycol and triol with organic diacid and trimellitic anhydride/aromatic primary diamine. The product is reacted with additional trimellitic anhydride for use as wire enamel in water-base solution and chelated ethanolamine titanate is added to the solution as a crosslinking agent.

Water-soluble polyester-imides

Polyamides are prepared by reacting aromatic diacid with aromatic or aliphatic diamine in the molar ratio of about 1:0.5 to about 1:0.9 and then reacting this product with at least 0.1 to about 0.5 up to about 0.75 moles of an aromatic or an aliphatic diisocyanate. The products are useful as wire enamels, coatings, and molding resins as well as films, fibers, adhesives, and impregnating materials.

Products and process for preparation of polyamides and shaped articles

Polyamide-imides are prepared by reacting trimellitic acid with an aromatic or an aliphatic diamine in the molar ratio of about 1:0.55 to 1:0.95 and then reacting this product with at least 0.45 to about 0.75 moles to about 0.05 to about 0.35 moles of an aromatic diisocyanate. The products are useful as wire enamels and coatings when they are formulated into wire enamels and coated on electrical conductors. They may also be used as molding resins.

Growing community of inventors

Oswego, IL, United States of America

Robert B Hanson