General Electric Company

Sabic Innovative Plastics IP B.v.

Dow Global Technolgoies LLC

Sabic Global Technologies B.v.

Ganesh Kailasam

Robert Russell Gallucci

Patrick Joseph McCloskey

Godavarthi S Varadarajan

Daniel Joseph Brunelle

James Alfred Day

Peter David Phelps

Elliott West Shanklin

Larry Neil Lewis

Paul Michael Smigelski, Jr

David Winfield Woodruff

James Anthony Cella

Roy Ray Odle

Eugene Pauling Boden

Paul Edward Howson

Norman Enoch Johnson

Pradeep Jeevaji Nadkarni

Mark Alan Sanner

Raul Eduardo Ayala

Thomas Link Guggenheim

Eric James Pressman

Farid Fouad Khouri

Erik Christopher Hagberg

Timothy Brydon Burnell

Gurulingamurthy M Haralur

William A Kernick, Iii

Alberto Nisoli

Utpal Mahendra Vakil

Susanta Banerjee

John Yaw Ofori

Thomas Joseph Fyvie

Amy Rene Freshour

Paul Russell Wilson

Angel Sanchez Gonzalez

Julia L Lee

Sheldon J Shafer

Ignacio Vic Fernandez

Paul William Buckley

Kapil Chandrakant Sheth

David Bruce Hall

Rajat Duggal

William Aaron Koonce

Nathan Wilmot

Juan Carlos Medina

Rajendra Kashinath Singh

Kamesh R Vyakaranam

Joseph John Caringi

Lioba Maria Kloppenburg

Ling Zhang

Larry Allen Divins

Xiaolan Wei

Donald Frank Rohr

William Lee Gately

Kenneth Michael Carroll

Judith Ann Serth-Guzzo

Maria Tomas Martinez

Vutukuru Lakshmi Narasimha Murthy

David Domingo

Ignacio Fernandez Vic

Qiwei He

Allen Wai Yee Ko

Alfredo Lopez Carretero

Thomas Joseph Fyve

Bansal Amitabh

Susarla Prameela

Venkataraman Karthik

William A Iii Kernick

Kameswara Vyakaranam

Embodiments of the invention provide for methods of producing a composition comprising a crosslinkable silane-terminated polymer having at least one crosslinkable silyl group in each molecule. The method comprises providing a polymer having at least one unsaturated group and at least one alcoholic hydroxyl group in each molecule, adding to the polymer a compound having a hydrogen-silicon bond and a crosslinkable silyl group in each molecule and a hydrosilylation catalyst to thereby carry out a hydrosilylation reaction to form a composition comprising hydrosilylated polyoxyalkylene polymers, reacting the hydrosilylated polyoxyalkylene polymers with at least one isocyanate in the presence of a first tin-free catalyst to form an isocyanate reacted hydrosilylated polymer, and optionally reacting the isocyanate reacted hydrosilylated polymer with a polyol having a nominal functionality of at least 2 to form a polyol reacted crosslinkable silane-terminated polymer.

Tin free silyl-terminated polymers

Disclosed herein are polysiloxane/polyimide block copolymer blends and the application of these blends in conductive wires.

Conductive wire comprising a polysiloxane/polyimide copolymer blend

A method of making a thermoplastic composition comprises melt blending two polysiloxane/polyimide block copolymers. Both of the block copolymers have extended polysiloxane blocks.

Process for making polysiloxane/polymide copolymer blends

Disclosed herein is a polysiloxane/polyimide block copolymer having a siloxane content of 5 to 30 weight percent, based on the total weight of the block copolymer and comprising repeating units of Formula (I) 

Polysiloxane/polyimide copolymers and blends thereof

Compositions comprise phase separated polyetherimide/polyphenylene ether sulfone blends. The dispersed phase has an average cross sectional size of 0.1 to 10 micrometers. The composition retains has good hydrolytic stability and is capable of withstanding steam autoclaving at temperatures of 130 to 138&#xb0; C.

Polyetherimide/polyphenylene ether sulfone blends

A composition comprises a blend of an aromatic polyketone and a polysiloxane/polyimide block copolymer. The composition can further comprise one or more additives.

Aromatic polyketone and polysiloxane/polyimide block copolymer composition

Blends of polysulfones, polyethersulfones and polyphenylene ether sulfones with resorcinol based polyesters, or resorcinol based polyester carbonate polymers, and silicone copolymers have improved flame resistance. Peak heat release energy is reduced and the time to reach peak heat release is increased.

Flame retardant polysulfone blends

Unexpected corrosion of downstream sections of a dialkyl carbonate manufacturing apparatus has been traced to alkyl chloroformate impurities, which slowly decompose to yield hydrochloric acid. An improved process and apparatus for dialkyl carbonate synthesis reduce corrosion by physically removing or chemically decomposing the alkyl chloroformate impurities within the corrosion-resistant upstream sections of the apparatus.

Method for preparing a dialkyl carbonate, and its use in the preparation of diaryl carbonates and polycarbonates

Unexpected corrosion of downstream sections of a dialkyl carbonate manufacturing apparatus has been traced to alkyl chloroformate impurities, which slowly decompose to yield hydrochloric acid. An improved process and apparatus for dialkyl carbonate synthesis reduce corrosion by physically removing or chemically decomposing the alkyl chloroformate impurities within the corrosion-resistant upstream sections of the apparatus. The alkyl chloroformate may be decomposed by passing it through a passageway at a temperature of about 30&#xb0; C. to about 130&#xb0; C. for a time of about 0.5 hour to about 10 hours. The passageway may include one or more holding vessels or a tubular section that promotes plug flow.

Method and apparatus for preparing a dialkyl carbonate, and its use in the preparation of diaryl carbonates and polycarbonates

A method and apparatus for continuously producing an alkyl aryl ether and a diaryl carbonate by reacting a dialkyl carbonate and an aromatic alcohol in presence of a transesterification catalyst.

Method and apparatus for production of alkyl aryl ether and diaryl carbonate

A method of making a polyether polymer comprises reacting a salt of a dihydroxy-substituted aromatic hydrocarbon with a substituted aromatic compound of formula (I)Z(A&#x2014;X)&#x2003;&#x2003;(I)in the presence of a catalyst to form an intermediate polymer having endgroups, wherein the molar ratio of the salt of a dihydroxy-substituted aromatic hydrocarbon to the substituted aromatic compound is less than 1, Z is an activating radical, Ais an aromatic radical and Xis fluoro, chloro, bromo or nitro; determining the additional amount of the salt of a dihydroxy-substituted aromatic hydrocarbon needed to form a final polyether polymer with a predetermined molecular weight and adding the additional amount of the salt of a dihydroxy-substituted aromatic hydrocarbon to the intermediate polymer.

Method for producing polyether polymers

The present invention provides a method of making polycarbonate oligomers, polycarbonate, molded articles formed from polycarbonate, and an apparatus for making polycarbonate. An oligomer mixture is first prepared by the steps of providing an equilibration system comprising a vessel, a reaction mixture contained within the vessel, and means for mixing the reaction mixture contained within the vessel wherein the reaction mixture comprises a melted activated diaryl carbonate composition, and a catalyst present in sufficient amount to initiate an oligomerization reaction between a dihydroxy composition and the activated diaryl carbonate to form polycarbonate oligomers. The method further includes the steps of introducing a melted dihydroxy composition to the reaction mixture contained within the equilibration system, maintaining the reaction mixture contained within the vessel at an oligomerization temperature, said oligomerization temperature being below the melting point the dihydroxy composition, and sufficiently high to allow formation of a homogeneous melt within the vessel, and continuously drawing off a product stream from the equilibration system, wherein the product stream comprises a polycarbonate oligomer mixture. This polycarbonate oligomer mixture is suitably used as a feed stock for producing polycarbonate in a polycondensation system. The polycarbonate is suitably used for the preparation of molded articles.

Method for preparing a polycarbonate oligomer mixture at low temperature for manufacturing polycarbonate

High yields of ester-substituted diary carbonates such as bis-methyl salicyl carbonate were obtained by the condensation of methyl salicylate with phosgene in the presence of a phase transfer catalyst (PTC) in an interfacial reaction system in which the pH of the aqueous phase was greater than 9.3. Using the method of the present invention conversions of greater than 99% were obtained whereas under standard conditions using triethylamine as the catalyst conversions were limited to 70-75% of the methyl salicylate starting material even with a 20 mole % excess of added phosgene. The optimized conditions of the of the present invention use only a slight excess of phosgene and represent an attractive route for the manufacture of bis methyl salicyl carbonate and ester-substituted diaryl carbonates generally.

Interfacial method of preparing ester-substituted diaryl carbonates

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Evansville, IN, United States of America

Ganesh Kailasam