General Electric Company

Occidental Chemical Corporation

Laurel Industries, Inc.

Ronald L Markezich

Tohru Takekoshi

Walter Karl Olander

Robert J Axelrod

Clayton B Quinn

Gary L Freimiller

Flame retardant composition

Thermoplastic polyester and polyesterether compositions having improved flame retardance, smoke generation and heat aging, reduced blooming and superior high temperature processability comprise a thermoplastic polyester or polyesterether resin derived from 1,4-butanediol and dimethyl terephthalate, antimony oxide, optionally fiberglass, and a chlorinated bisimide of the formula ##STR1##

Fire retardant thermoplastic polyester and polyesterether compositions

Flame retardant polyesterether elastomer compositions having superior high temperature processability and heat aging properties, resistance to blooming, improved flame retardance, and reduced smoke generation and reduced dripping during burning, comprise

Polyesterether elastomer compositions having improved flame retardant

Thermally stable polycarbonate compositions are obtained by admixing with a high molecular weight aromatic polycarbonate resin a stabilizing amount of a dioxane phosphite.

Thermally stable polycarbonate compositions

Halo-(carbonyldioxyaryl)ethylenes are prepared by a catalytic process which comprises contacting a halo-bis(hydroxyaryl)ethylene, carbon monoxide, an oxidant, a base, and a Group VIIIB element selected from ruthenium, rhodium, palladium, osmium, iridium or platinum. The resulting halo-(carbonyldioxyaryl)-ethylenes are useful as flame retardents for thermoplastic polymeric materials.

Halo-(carbonyldioxyaryl)ethylenes

Thermally stable polycarbonate compositions are obtained by admixing with a high molecular weight aromatic polycarbonate resin a stabilizing amount of a bisphosphite.

Thermally stable polycarbonate compositions are obtained by admixing with a high molecular weight aromatic polycarbonate resin a stabilizing amount of a hindered phenol phosphite.

Hindered phenol phosphites

Thermally stable polycarbonate compositions are obtained by admixing with a high molecular weight aromatic polycarbonate resin a stabilizing amount of a phosphonite oxetane.

Thermally stable polycarbonate compositions comprising oxetane

A process is disclosed for producing copolyester-carbonates employing diacid chlorides and following a pH processing profile. The copolyester-carbonates produced exhibit physical properties similar to those of high molecular weight aromatic polycarbonates.

Process for producing copolyester-carbonates

A method is described for making organic polycarboxylic acids or anhydrides, such as aromatic ether bis(phthalic acid)s, based on a cyclic imide-cyclic anhydride exchange reaction at elevated temperatures in the presence of water. In addition to making organic polycarboxylic acid and organic imides there are also generated certain imide carbonyl compounds such as ##STR1##

Imide carbonyl compounds and method for making

A method is described for making organic polycarboxylic acids or anhydrides, such as aromatic ether bis(phthalic acid)s, based on a cyclic imide-cyclic anhydride exchange reaction at elevated temperatures in the presence of water. In addition to making organic polycarboxylic acid, organic imides are also generated.

Method for making organic polycarboxylic acids

A continuous method is provided for making an N-alkylphthalimide, such as N-methylphthalimide, by effecting reaction between an alkylamine and phthalic anhydride at a temperature of at least 150.degree. C, while providing for the removal of water of reaction. The N-alkylphthalimides are valuable precursors for making nitrophthalimide, organic dianhydrides and organic polymers.

Method for making n-alkylphthalimides

This invention covers a novel bisphenol-A diacid and a bisphenol-A anhydride.

2-[4-(3,4-Dicarboxyphenoxy)phenyl]-2-(4-hydroxyphenyl)propane and the

A method is provided for making aromatic bis(ether dicarboxylic acid) useful for making high performance injection moldable polyetherimides. An aromatic bis(ether N-organo phthalimide) is hydrolyzed directly to the corresponding tetra-acid by heating the aromatic bis(ehter N-organo phthalimide) in a closed system in the presence of acetic acid, water, and a mineral acid.

Method for making aromatic bis(ether dicarboxylic acid)

Aromatic bisimides can be prepared by effecting reaction between a 3- or 4-nitro-N-substituted phthalimide with an aromatic dihydroxy compound in the presence of a certain class of solid alkali-metal fluorides and using a dipolar aprotic compound as a solvent.

Growing community of inventors

Scotia, NY, United States of America

Ronald L Markezich