General Electric Company

Other

Dwain M White

Laura A Socha

George R Loucks

David G Keyes

William R Haaf

Harold F Giles, Jr

Gary William Yeager

Susan Adams Nye

Robert O Matthews

Sterling B Brown

John Robert Campbell

James Edward Pickett

Fred F Holub

John B Yates

Roelof F Van Der Meer

Arnold Factor

David Winfield Woodruff

Daniel Edwin Floryan

Margaret Louise Blohm

Allan S Hay

Timothy J Shea

Janet L Gordon

Jane M Terry

Factir Arnold

Arnold Factoe

A method for making polyarylene ethers comprises the step of melt polymerizing phenolic monomers in the presence of oxygen and oxidative coupling catalysts without employing environmentally unfriendly solvents.

Solventless method for making polyarylene ethers

A method for making polyarylene ethers comprising the step of melt polymerizing 2,6-disubstituted-4-alkylphenols in the presence of an oxidative coupling catalyst and in the absence of environmentally unfriendly solvents.

Method for making polyarylene ethers from mesitol

A method for making polyarylene ethers is described and the method comprises the step of polymerizing hydroxyaromatic monomers or oligomers prepared therefrom in the presence of pyridine catalysts.

Method for making polyarylene ethers with pyridine catalysts

Novel polymer compositions that comprise high 1,2-enrichment are described herein. Said polymer compositions have up to about 50% by weight of 1,2 units wherein about 25% to about 75% by weight of all 1,2 units are present in the polymer backbone. Additionally a novel process is disclosed for producing polymer compositions by dissolving a polydiene in a monomeric diene during emulsion polymerization conditions.

Process for producing high 1,2-enriched polybutadiene latices

Macrocyclic polyimide oligomers are converted to linear polyimides by heating with a primary amine in the presence of a tertiary amine, tertiary phosphine, quaternary ammonium salt, quaternary phosphonium salt or hexaalkylguanidinium salt or heterocyclic analog thereof as a macrocyclic polyimide polymerization catalyst.

Method for converting macrocyclic polyimide oligomers to linear

A composition and method of making copolymers of salicylic acid and dicarboxylic acid by reacting at least one salicylic acid with at least one dicarboxylic acid and at least one acetic anhydride for every salicylic and dicarboxylic acid present. The composition is useful for functionalizing polyphenylene ethers that are capable of forming copolymers useful for compatibilizing blends of polyphenylene ethers and polyamides.

Copolymers of dicarboxylic acids and salicylic acids

Disclosed are polymer blends and compolymers of polyphenylene ethers, functionalized by copolymers of dicarboxylic acid and salicylic acid, which react with polyamides and are capable of compatibilizing blends of polyphenylene ethers and polyamides.

Polyphenylene ether-polyamide compositions from dicarboxylate-capped

A composition and method of making polyphenylene ethers capped by copolymers of salicylic acid and dicarboxylic acid by reacting at least one polyphenylene ether with at least one of the aforementioned copolymers. The composition is useful to form copolymers capable of compatibilizing blends of polyphenylene ethers and polyetherimides.

Preparation of functionalized polyphenylene ether using copolymers of

Disclosed are blends comprising from about 40 to 70 wt. % of a polyetherimide and the remainder one or more polyamides. The blends generally have a tensile strength which is greater than the tensile strength of polyetherimide-polyamide blends which do not contain from about 40 to 70% polyetherimide, while still retaining a good combination of other physical properties such as heat distortion characteristics and impact strength. In addition, the blends of the invention may have a flexural strength which is greater than that of other polyetherimide-polyamide blends which do not contain from about 40 to 70% polyetherimide.

Polyetherimide-polyamide blends

An odor free polyphenylene ether is made from polymerization grade phenolic monomer which has been crystallized from a solvent. An amine free catalyst is used to polymerize the monomer. The polyphenylene ether is useful as a packaging material for food which is to be stored at a low temperature and/or cooked in the package at a high temperature.

Low odor polyphenylene ether produced in the absence of odor causing

Polymer blends and copolymers made therefrom, of anhydride-functionalized polyphenylene ether and polyetherimide. The components of the blends have improved compatibility, resulting in more homogeneous blends. The blends exhibit good mechanical properties and are suitable for forming films, molded products and other useful articles of manufacture. The copolymers have utility as compatibilizers for blends of polyphenylene ether and polyetherimide.

Blends and copolymers of polyetherimide and functionalized polyphenylene

Odor components are removed from polyphenylene ether resins by extracting the resin with a ketone, preferably acetone. Odor components removed by this method include 7-methyldihydrobenzofuran, dihydrobenzofuran, 2,4,6-trimethylanisole, 2,6-dimethylcyclohexanone, and 2-ethylhex-2-enal, as well as dibutylamines and various unsaturated amines.

Method for removing odor components from polyphenylene ether resins with

Extrudate of polyphenylene ether-styrene resin blends having effective amounts of an organoamine salt has been found to have improved flame retardance.

Flame retardant extrudate of polypheylene ether blends, and method of

Polyphenylene ether-polyamide compositions which are compatibilized and have high impact strength and solvent resistance are prepared by melt blending a carboxy-functionalized polyphenylene ether with a polyamide. The carboxy-functionalized polyphenylene ethers contain at most one carbon atom separating the carboxy group from the aromatic ring and may be prepared by such reactions as metalation-carbonation or redistribution (equilibration).

Compatibilized polyphenylene ether-polyamide compositions and method of

Polysalicylates are prepared according to the present invention by the reaction of salicylic acid with a carboxylic acid derivative such as acetic anhydride or acetyl chloride. The reaction is carried out under conditions which yield greater than about 90% by weight linear polysalicylate product.

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Schenectady, NY, United States of America

Dwain M White