General Electric Company

David Mobley, LLC

David Paul Mobley

Mohan Mark Amaratunga

Gary Charles Davis

David Key Dietrich

John Henry Lobos

Sukhendu Bikash Hait

Gary Keith Shank

Peter David Phelps

Mark Erik Nelson

James Lawrence Spivack

Joseph James Salvo

Thomas Joseph Fyvie

Andrew J Caruso

A customized musical instrument support for use in supporting a musical instrument on or against a portion of an instrument player's body, includes a universal component having a standardized configuration and attachable to various sized single-type instruments for use by multiple instrument players, and an individually customized element attachable to the universal component. The individually customized element has an individually customized surface contoured corresponding to an impression to substantially fit to the instrument player's contoured body surface which is in proximity to placement of the customized musical instrument support on the instrument player during playing of the musical instrument.

Individually customized musical instrument supports, customized elements and methods for forming the same

Individually customized musical instrument supports, customized elements, and methods for forming the same

Aliphatic tricarboxylic acids, as exemplified by 9-carboxy-1,18-octadecanedioic acid, may be prepared by the biotransformation of an olefinic monocarboxylic acid such as oleic acid to the corresponding olefinic dicarboxylic acid, preferably 1,18-octadec-9-enedioic acid, in the presence of a strain of yeast, such as a strain of followed by the carboxylation of the olefinic dicarboxylic acid by reaction with carbon monoxide and water in the presence of a catalyst. The product tricarboxylic acids are useful as branching agents for polycarbonates.

Tricarboxylic acids, method, and branched polycarbonates prepared therefrom

Aliphatic tricarboxylic acids, as exemplified by 9-carboxy-1,18-octadecanedioic acid, may be prepared by the biotransformation of an olefinic monocarboxylic acid such as oleic acid to the corresponding olefinic dicarboxylic acid, preferably 1,18-octadec-9-enedioic acid, in the presence of a strain of yeast, such as a strain of , followed by the carboxylation of the olefinic dicarboxylic acid by reaction with carbon monoxide and water in the presence of a catalyst. The product tricarboxylic acids are useful as branching agents for polycarbonates.

Copolyestercarbonates comprising carbonate structural units derived from at least one dihydroxyaromatic compound, preferably bisphenol A, and ester units derived from a dihydroxyaromatic compound and a composition comprising at least one C dimer acid may be prepared by an interfacial phosgenation method conducted at a pH in the range of about 9-11. The copolyestercarbonates have properties which are often superior to those of corresponding polymers prepared, for example, from dodecanedioic acid.

Copolyestercarbonates derived from dimer acids and method for their preparation

A method for preparing a polyestercarbonate copolymer using solid state polymerization and polyestercarbonates prepared thereby is described. The method comprises preparing a mixture comprising partially crystalline bisphenol A polycarbonate oligomer and hydroxy acids, aliphatic diacids, cycloaliphatic diacids, aromatic diacids or aromatic triacids and subjecting that mixture to solid state polymerization to afford a polyestercarbonate copolymer.

Polyestercarbonates and methods for the direct incorporation of acids into polycarbonate chains by SSP

Robust process for the synthesis of polyestercarbonates

This invention relates to polyestercarbonates comprising residues of at least one branched aliphatic dicarboxylic acid, and methods for preparation of polyestercarbonates comprising residues of at least one branched aliphatic dicarboxylic acid. This invention further relates to articles and methods of making articles from the polyestercarbonates.

Polyestercarbonate comprising residues of branched diacids

This invention provides a low-cost method of producing .alpha.,.omega.-alkanedicarboxylic acids. Particular bioconversion conditions result in highly efficient conversion of fatty acid, fatty acid ester, or alkane substrates to diacids. Candida tropicalis AR40 or similar yeast strains are grown in a medium containing a carbon source and a nitrogen source at a temperature of 31.degree. C. to 38.degree. C., while additional carbon source is continuously added, until maximum cell growth is attained. Within 0-3 hours of this point, substrate is added to the culture to initiate conversion. An .alpha.,.omega.-alkanedicarboxylic acid made according to this method is also provided.

Method for high specific bioproductivity of

This invention describes a low cost biofermentation medium, and an economical method using the medium, for the manufacture of .alpha., .omega.-alkanedicarboxylic acids. The invention provides a biofermentation medium and a method of bioproduction for these important diacids which makes their large scale commercial production economically feasible using a biocatalyst. This method of production obviates the need for chemical synthesis using expensive starting materials from fossil fuels, and does not generate a costly hazardous waste stream.

Fermentation medium and method for producing .alpha., .omega.

A. parasiticus is employed to hydroxylate 2'-hydroxyterphenyl compounds to terphenyltriols, which can be used to form branched polycarbonates. The hydroxylation reaction is enhanced by maintaining a sufficient amount of a carbon source in the culture medium-reaction medium to maintain the ammonium level below 300 ppm. during the bioconversion phase. Employment of a mutant strain of A. parasiticus which was isolated following ultraviolet light mutagenesis to reduce its tendency to produce aflatoxins is preferred.

Fungal strain used to make 2',4,4'-m-terphenyltriols

A. parasiticus is employed to hydroxylate biphenyls or terphenyls. The hydroxylation reaction is enhanced by gradually adding a carbon source to the culture medium-reaction medium, preferably in an amount to maintain the ammonium level below 300 ppm. during the bioconversion phase. Employment of a mutant strain of A. parasiticus which was isolated following ultraviolet light mutagenesis to reduce its tendency to produce aflatoxins is preferred.

Method for microbiologically hydroxylating biphenyl and terphenyl

Polyphenylene oxides are prepared by the catalytic reaction of oxygen with a monohydroxyaromatic compound such as 2,6-xylenol in a continuous-flow tubular reactor containing multiple agitated zones. In the case of a copper catalyst system, it is often preferred to pre-mix the non-gaseous constituents of the reaction mixture in an inert atmosphere, and also to use a reactor with various agitator and zone dimensions in various regions.

Process for continuous preparation of polyphenylene oxide in agitated

Polyphenylene oxides are prepared by the catalytic reaction of oxygen with at least one monohydroxyaromatic compound in a system which includes an organic solvent and an aqueous phase comprising a solution of at least one inorganic halide salt, preferably sodium bromide. This system enables the reaction to be conducted in the presence of the aqueous phase without deactivating the oxidative coupling catalyst. This system preferably also contains a minor amount of at least one surfactant selected from the group consisting of cationic surfactants having an HLB within the range of about 12-15 and amphoteric surfactants. The presence of a surfactant facilitates polymer recovery by promoting formation of readily filterable solid polymer particles in the aqueous system.

Polyphenylene oxide preparation in an aqueous dispersion

Polyphenylene oxides are prepared by the catalytic reaction of oxygen with a monohydroxyaromatic compound such as 2,6-xylenol in a solvent for reactants and product, in a two-stage process. The first stage is effected continuously in at least one and preferably not more than two back-mixed (e.g., tank) reactors, and the second stage in one or more batch reactors or, preferably, in a reaction system with limited back-mixing, typically a cylindrical reactor containing multiple agitated zones. In the case of a copper catalyst system, it is also preferred to pre-mix the non-gaseous constituents of the reaction mixture in an inert atmosphere.

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Niskayuna, NY, United States of America

David Paul Mobley