General Electric Company

Zhaohui Su

Paul Dean Sybert

Gregory Allen O'Neil

Daniel Joseph Brunelle

Gary Charles Davis

Niles R Rosenquist

James Manio Silva

Mark Erik Nelson

David Michel Dardaris

Tiberiu Mircea Siclovan

Joseph Anthony Suriano

James Louis DeRudder

Glen David Merfeld

Rainer Koeniger

Matthew Robert Pixton

Ali Ersin Acar

A method is provided for making siloxane polycarbonate copolymers and blends of other polycarbonates with such copolymers wherein the copolymers and blends have excellent transparency and physical characteristic.

Transparent and high-heat polycarbonate-polysiloxane copolymers and transparent blends with polycarbonate and a process for preparing same

A coating composition comprising components A, B and optionally C, wherein component A comprises at least one hydroxy-terminated polyarylate. Component B is an organic species which can react with the hydroxy terminal groups of component A, and component C is a catalyst or mixture of catalysts. The hydroxy-terminated polyarylates are prepared by a solution polymerization method.

Coating compositions, their preparation, and coated articles made therefrom

Thermally stable block copolyestercarbonates comprising chain members derived from at least one dihydroxy-substituted aromatic hydrocarbon moiety and at least one aromatic dicarboxylic acid moiety, said polymer being substantially free of anhydride linkages linking at least two mers of the polyester chain segments, are prepared by a method comprising the steps of: (a) preparing a hydroxy-terminated polyester intermediate comprising structural units derived from at least one dihydroxy-substituted aromatic hydrocarbon moiety and at least one aromatic dicarboxylic acid moiety; and (b) conducting a reaction of the polyester intermediate with phosgene in a reaction mixture comprising water, a substantially water-immiscible organic solvent, and a base, wherein base and phosgene are added simultaneously to the reaction mixture at a substantially constant molar ratio of base to phosgene for a time period of at least about 60% of the total amount of phosgene added.

Method for copolyestercarbonate synthesis

Polyphthalate polyesters or polyester/polycarbonates are prepared from phthalates and 4,4&prime;-&lsqb;1-methyl-4-(1-methyl-ethyl)-1,3-cyclohexandlyl&rsqb;-bisphenol.

Bis-hydroxyphenyl menthane polyesters and polyester/polycarbonates and methods for preparing same

Thermally stable polymers comprising resorcinol arylate chain members are prepared using an interfacial method comprising the steps of: interfacial method for preparing polymers comprising resorcinol arylate polyester chain members substantially free of anhydride linkages linking at least two mers of the polymer chain, comprising the steps of: (a) preparing an aqueous solution comprising at least one resorcinol moiety, said solution having a pH less than or equal to about 5; (b) after step (a), preparing a mixture comprising the resorcinol moiety, at least one catalyst and at least one organic solvent substantially immiscible with water; and (c) adding to the mixture from (b) at least one dicarboxylic acid dichloride while maintaining the pH between 3 and 8.5 through the presence of an acid acceptor, wherein the total molar amount of acid chloride groups is stoichiometrically deficient relative to the total molar amount of phenolic groups.

Thermally stable polymers, method of preparation, and articles made therefrom

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Evansville, IN, United States of America

Zhaohui Su