General Electric Company

General Electric Corporation Gmbh

Adrianus J F M Braat

Juraj Liska

Ruud Trion

Hua Guo

Hugh Ingelbrecht

Gary William Yeager

Herbert Shin-I Chao

Hugo G E Ingelbrecht

Rene De Jongh

Peter Alexander Knops

Hugo G E Engelbrecht

Kenneth Paul Zarnoch

Amy Rene Freshour

Adrie Landa

Benny Ezekiel David

Hugo Ingelbrecht

Herb Chao

The invention relates to a polyphenylene ether resin containing residual aliphatic unsaturation as well as composites, blends, and articles made from the polyphenylene ether resin containing residual aliphatic unsaturation. Also included are reaction products between the polyphenylene ether resin containing residual aliphatic unsaturation and other resins and unsaturated resin formulations, e.g., thermosetting polyesters, acrylics, bismaleiimides, silicones, and allylics, and thermoplastics such as polyolefins, styrenics, rubbers, etc.

Compositions comprising functionalized polyphenylene ether resins

A process for removal of a catalyst from a polymerization reaction mixture, comprises adding at least one polar solution to the reaction mixture to form a first at least two phase mixture, wherein one phase of the first at least two phase mixture is a first polymer phase; liquid/liquid centrifuging the first at least two phase mixture to separate the phases; removing the first polymer phase from the first at least two phase mixture; adding water to the first polymer phase to form a second at least two phase mixture, where one phase of the second at least two phase mixture is a second polymer phase; and separating the second polymer phase from the second at least two phase mixture.

Poly (arylene ether) and process for making the same

A composition comprises a bitumen and a poly(arylene ether) having an intrinsic viscosity less than 0.40 deciliters per gram. The composition exhibits high softening and flow temperatures, and high hardness.

Poly (arylene ether) composition, method for the preparation thereof, and articles derived therefrom

Poly(arylene ether) resins having intrinsic viscosities greater than about 0.8 dL/g are produced in the reaction of a phenol with oxygen in the presence of an organic solvent and a metal complex catalyst, the phenol concentration being about 5 to about 15 weight percent of the sum of phenol and solvent, and the molar ratio of metal in the metal complex catalyst to the phenol being about 1:100 to about 1:200.

Preparation of high intrinsic viscosity poly(arylene ether) resins

The invention relates to a novel process for the manufacture of functionalized polyphenylene ether resins through redistribution with a functionalized phenolic compound in the polyphenylene ether resin polymerization reaction solution without the addition of an added redistribution catalyst or promoter. The invention also relates to the functionalized polyphenylene ether resin made by the process as well as blends and articles containing the functionalized polyphenylene ether resin made by the process.

Process for the manufacture of low molecular weight polyphenylene ether resins through redistribution

An elastomer-thermoplastic composition comprising styrene butadiene random copolymer and poly(arylene ether) resin and methods of making the composition are disclosed.

Preparation process and properties of styrene butadiene random copolymer/poly(arylene ether) compositions

Process for the manufacture of low molecular weight polyphenylene ether resins

The invention relates to a novel process for the manufacture of very low molecular weight polyphenylene ether resin, typically within the intrinsic viscosity range of about 0.08 dl/g to about 0.16 dl/g as measured in chloroform at 25&deg; C. The method preferably comprises 2,6-dimethylphenol as a monovalent phenol species. The invention also relates to the polyphenylene ether resin made by the process as well as blends and articles containing the polyphenylene ether resin made by the process.

The invention relates to a novel process for preparing functionalized PPE, the process comprising oxidative coupling in a reaction solution at least one monovalent phenol species using an oxygen containing gas and a complex metal catalyst to produce a PPE; and functionalizing the PPE prior to and/or during at least one isolation step for devolatilization of the reaction solvent. The invention also relates to the polyphenylene ether resin made by the process as well as blends and articles containing the polyphenylene ether resin made by the process.

Process for the manufacture of functionalized polyphenylene ether resins

The present invention relates to substantially pure poly(arylene ether), e.g. purities exceeding about 99%, and to a method for making the same. The method which eliminates multiple rinses with a complexing reagent includes removing the catalyst from the polymerization mixture by mixing the polymerization mixture with a complexing reagent and liquid/liquid centrifuging the multiphase mixture. Water is then added to the polymer phase prior to a subsequent liquid/liquid centrifuge process. Once the catalyst has been sufficiently removed, the polymer can be concentrated in a flash vessel (which is not heated) by introducing a heated polymer phase to the vessel at a high pressure and quickly reducing the pressure. The concentrated polymer can then be introduced to an extruder to produce the high purity polymer. Due to the introduction of low molecular weight poly(arylene ether) at the intake zone of the extruder, essentially pure poly(arylene ether) can be isolated by this process. By combining the extruder process with an underwater pelletizer, thus providing extremely rapid cooling of the polymer melt when it exits the extruder and contacts air, much better color and lower amount of black specs in the final product is obtained.

Poly(arylene ether) and process for making the same

The invention relates to a novel process for the manufacture of polyphenylene ether resin containing residual aliphatic unsaturation. The invention also relates to the polyphenylene ether resin containing residual aliphatic unsaturation as well as composites, blends, and articles made from the polyphenylene ether resin containing residual aliphatic unsaturation. Also included are reaction products between the polyphenylene ether resin containing residual aliphatic unsaturation and other resins and unsaturated resin formulations, e.g., thermosetting polyesters, acrylics, and thermoplastics such as polyolefins.

Composition and process for the manufacture of functionalized polyphenylene ether resins

The invention relates to methods of capping poly(phenylene ether) resin having an intrinsic viscosity between 0.05 and 0.35 dl/g. More particularly, the methods comprise capping a poly(phenylene ether) resin having an intrinsic viscosity between 0.05 and 0.35 dl/g in a solvent to produce a capped poly(phenylene ether) resin having an intrinsic viscosity between 0.05 and 0.35 dl/g and isolating the capped poly(phenylene ether) resin by removal of the solvent, preferably in a process other than precipitation. The invention also relates to the capped poly(phenylene ether) resin having an intrinsic viscosity between 0.05 and 0.35 dl/g.

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Roosendaal, Netherlands

Adrianus J F M Braat