Patents Represented by Attorney, Agent or Law Firm S. Bruce Brown
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Patent number: 6583256Abstract: Block copolyestercarbonates may be prepared by first conducting a reaction between at least one of resorcinol or an alkyl- or haloresorcinol and at least one aromatic dicarboxylic acid dichloride, preferably isophthaloyl dichloride, terephthaloyl dichloride or a mixture thereof, to produce a hydroxy-terminated polyester intermediate, and then conducting a reaction of the intermediate with a carbonate precursor, preferably in the presence of a dihydroxy compound such as bisphenol A. The products have excellent physical properties, including a high degree of weatherability. They may be blended with other polymers such as polycarbonates, poly(alkylene dicarboxylates), polyarylates, polyetherimides, and addition polymers to improve the weatherability thereof.Type: GrantFiled: January 3, 2001Date of Patent: June 24, 2003Assignee: General Electric CompanyInventors: Peter Hendrikus Theodorus Vollenberg, Hongyi Zhou, Bimal Ramesh Patel
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Patent number: 6576718Abstract: Powder coating compositions comprising at least one thermosetting resin and at least one poly(phenylene ether) are disclosed.Type: GrantFiled: October 4, 2000Date of Patent: June 10, 2003Assignee: General Electric CompanyInventors: Gary William Yeager, Michael Teruki Takemori
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Patent number: 6572796Abstract: A method of predicting optimal injection molding cycle time includes the steps of performing a thermal analysis through a thickness of a part made using an injection mold, calculating shrinkage as a function of cooling time, calculating friction forces between the part and mold, calculating ejection forces based on the coefficient of friction and the calculated shrinkage calculating the induced stress in selected high stress areas on the part, and comparing the induced stress with material yield stress to determine an optimal cycle time window within which the part can be ejected without being damaged.Type: GrantFiled: October 27, 2000Date of Patent: June 3, 2003Assignee: General Electric CompanyInventors: Dong-Ming Gao, Wit Cezany Bushko
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Patent number: 6559270Abstract: Block copolyestercarbonates may be prepared by first conducting a reaction between at least one of resorcinol or an alkyl- or haloresorcinol and at least one aromatic dicarboxylic acid dichloride, preferably isophthaloyl dichloride, terephthaloyl dichloride or a mixture thereof, to produce a hydroxy-terminated polyester intermediate, and then conducting a reaction of the intermediate with a carbonate precursor, preferably in the presence of a dihydroxy compound such as bisphenol A. The products have excellent physical properties, including a high degree of weatherability. They may be blended with other polymers such as polycarbonates, poly(alkylene carboxylates), polyarylates, polyetherimides, and addition polymers to improve the weatherability thereof.Type: GrantFiled: October 12, 1999Date of Patent: May 6, 2003Assignee: General Electric CompanyInventors: Tiberiu Mircea Siclovan, Jimmy Lynn Webb, Sterling Bruce Brown, Donald Joseph Buckley, Jr., James Edward Pickett, Joseph Anthony Suriano, Paul Dean Sybert, Daniel Joseph Brunelle, Margaret Louise Blohm, Hongyi Zhou, Georgia Dris Fishburn
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Patent number: 6552133Abstract: Carboxy-functionalized polyphenylene ethers containing structural units with a carboxyalkyl group in the 2-position are prepared by redistribution of a polyphenylene ether with a 2-carboxyalkylphenol such as 2-(3-carboxypropyl)phenol (melilotic acid), or by oxidative coupling of a suitable phenol with such a 2-carboxyalkylphenol. The products form compatibilizing copolymers with polymers containing carboxylic acid-reactive functional groups, such as polyesters, polyamides and epoxy resins.Type: GrantFiled: May 31, 2001Date of Patent: April 22, 2003Assignee: General Electric CompanyInventors: Gary William Yeager, Yiqun Pan
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Patent number: 6538065Abstract: Block copolyestercarbonates substantially free of anhydride linkages linking at least two mers of the polymer chain may be prepared by a method which comprises the steps of: (A) preparing a hydroxy-terminated polyester intermediate in a molten reaction mixture comprising at least one 1,3-dihydroxybenzene moiety and at least one aromatic dicarboxylic acid diarylester under transesterification conditions, said polyester intermediate having a degree of polymerization of at least 4; and (B) conducting a reaction of said polyester intermediate with a carbonate precursor in a two-phase system comprising an aqueous phase and a water-immiscible organic solvent. Articles comprising the copolyestercarbonates are another aspect of the invention.Type: GrantFiled: July 26, 2001Date of Patent: March 25, 2003Assignee: General Electric CompanyInventors: Joseph Anthony Suriano, Tiberiu Mircea Siclovan, Gregory Allen O'Neil, Daniel Joseph Brunelle, Jimmy Lynn Webb
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Patent number: 6537636Abstract: Polymer blends suitable for use in optical article. The polymer blends comprise a first and second polycarbonate and have properties particularly suited for use in high density optical data storage media.Type: GrantFiled: June 5, 2000Date of Patent: March 25, 2003Assignee: General Electric CompanyInventors: Marc Brian Wisnudel, Irene Dris, Gary Charles Davis, Ramesh Hariharan, Cornelis Jan Maria Rijken, Jeroen Johannes Cornelis van Ginneken, Steven Frederick Hubbard
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Patent number: 6521777Abstract: A process for catalytic production of diaryl carbonates by oxidative carbonylation of aromatic hydroxy compounds with carbon monoxide and oxygen achieves water removal during reaction by a process comprising the steps of: removing a liquid stream from an oxidative carbonylation reaction mixture in a reaction vessel and transferring the stream to a disengagement vessel, transferring a stream from the disengagement vessel to a flash vessel and subjecting the liquid stream to reduced pressure, and returning at least a portion of dried liquid stream to the reaction vessel. Typical catalyst systems for oxidative carbonylation contain (A) at least one Group 8, 9, or 10 metal having an atomic number of at least 44 or a compound thereof; (B) at least one guanidinium salt or onium salt; (C) at least one metal co-catalyst; and (D) at least one base.Type: GrantFiled: September 24, 2001Date of Patent: February 18, 2003Assignee: General Electric CompanyInventors: John Yaw Ofori, Eric James Pressman, Kirill Vladimirovich Shalyaev, Eric Douglas Williams, Richard Anthony Battista
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Patent number: 6512134Abstract: A method and catalyst system for economically producing aromatic carbonates from aromatic hydroxy compounds is disclosed. In one embodiment, the present invention provides a method of carbonylating aromatic hydroxy compounds by contacting at least one aromatic hydroxy compound with oxygen and carbon monoxide in the presence of a carbonylation catalyst system that includes an effective amount of at least one Group 8, 9, or 10 metal source; an effective amount of at least one bromide composition; an effective amount of at least one activating organic solvent; an effective amount of a combination of inorganic co-catalysts comprising at least one titanium source and at least one copper source; and an effective amount of at least one base.Type: GrantFiled: May 20, 2002Date of Patent: January 28, 2003Assignee: General Electric CompanyInventors: Kirill Vladimirovich Shalyaev, Grigorii Lev Soloveichik, Bruce Fletcher Johnson
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Patent number: 6507049Abstract: A packaged solid state device having a package, a chip, and an encapsulate having an epoxy resin, a boron containing catalyst that is essentially free of halogen. A LED device having a package, a LED chip, a encapsulate having a cycloaliphatic epoxy resin and a boroxine catalyst essentially free of halogen. A method of encapsulating a solid state device whereby a solid state device is placed into a package, and an encapsulant comprising an epoxy resin, and a boron containing catalyst that is essentially free of halogen, are provided.Type: GrantFiled: September 1, 2000Date of Patent: January 14, 2003Assignee: General Electric CompanyInventors: Gary William Yeager, Malgorzata Rubinsztajn
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Patent number: 6506924Abstract: A method is disclosed for recovering a substantially water-soluble solvent from a reaction mixture comprising at least about 35% by weight aromatic hydroxy compound, which comprises the steps of: (i) extracting a reaction mixture at least once with aqueous acid wherein the solvent remains substantially in the organic phase; and (ii) recovering solvent from the organic phase.Type: GrantFiled: March 30, 2001Date of Patent: January 14, 2003Assignee: General Electric CompanyInventors: Marsha Mottel Grade, John Yaw Ofori, Eric James Pressman
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Patent number: 6500984Abstract: A method is disclosed for producing phosgene which in one embodiment comprises contacting in at least one reactor a mixture comprising carbon monoxide and chlorine sequentially with a first catalyst followed by contacting the resulting gaseous reaction mixture comprising phosgene with at least one second catalyst of higher relative activity than a first catalyst. In another embodiment a method is disclosed for producing phosgene which comprises contacting in at least one reactor a mixture comprising carbon monoxide and chlorine with at least one catalyst bed comprising a first catalyst wherein at least a portion of said first catalyst is diluted with a second catalyst of higher relative activity than a first catalyst.Type: GrantFiled: January 25, 2002Date of Patent: December 31, 2002Assignee: General Electric CompanyInventors: Francis Anthony Via, Grigorii Lev Soloveichlk, Philip George Kosky, Walter Vladimir Cicha
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Patent number: 6498271Abstract: 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 Candida tropicalis, 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.Type: GrantFiled: January 10, 2002Date of Patent: December 24, 2002Assignee: General Electric CompanyInventors: David Paul Mobley, Mohan Mark Amaratunga, John Henry Lobos
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Patent number: 6472551Abstract: A process for catalytic production of diaryl carbonates by oxidative carbonylation of aromatic hydroxy compounds with carbon monoxide and oxygen achieves water removal during reaction by a process comprising the steps of: removing a liquid stream from an oxidative carbonylation reaction mixture in a reaction vessel, subjecting the liquid stream to reduced pressure, and returning at least a portion of dried liquid stream to the reaction vessel. Typical catalyst systems for oxidative carbonylation contain (A) at least one Group 8, 9, or 10 metal having an atomic number of at least 44 or a compound thereof; (B) at least one alkali metal salt; (C) at least one metal co-catalyst; (D) at least one activating organic solvent; and (E) optionally, at least one base.Type: GrantFiled: April 11, 2002Date of Patent: October 29, 2002Assignee: General Electric CompanyInventors: John Yaw Ofori, Eric James Pressman, Kirill Vladimirovich Shalyaev, Eric Douglas Williams, Richard Anthony Battista
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Patent number: 6469205Abstract: Xylene derivatives, such as chloro-ortho-xylene, are oxidized in the absence of solvent or added promoter in the presence of at least one metal catalyst. The primary products are chlorophthalic anhydride and chlorotoluic acid.Type: GrantFiled: November 14, 2000Date of Patent: October 22, 2002Assignee: General Electric CompanyInventor: Tohru Takekoshi
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Patent number: 6465685Abstract: Xylene derivatives, such as chloro-ortho-xylene, are oxidized in a solvent in the presence of at least one metal catalyst with addition of promoter after the reaction has proceeded to an intermediate stage of conversion to product mixture. The product comprises chlorophthalic acid or chlorophthalic anhydride.Type: GrantFiled: November 20, 2000Date of Patent: October 15, 2002Assignee: General Electric CompanyInventors: Peter David Phelps, Donald Frank Rohr, Jr., Sheree Lynell Schattenmann
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Patent number: 6465675Abstract: A method and catalyst system for economically producing aromatic carbonates from aromatic hydroxy compounds. In one embodiment, the present invention provides a method of carbonylating aromatic hydroxy compounds by contacting at least one aromatic hydroxy compound with oxygen and carbon monoxide in the presence of a carbonylation catalyst system that includes an effective amount of a Group VIII B metal source; an effective amount of a bromide composition; an effective amount of an activating organic solvent; an effective amount of a combination of inorganic co-catalysts comprising a lead source and a copper source; and an effective amount of a base.Type: GrantFiled: October 2, 2000Date of Patent: October 15, 2002Assignee: General Electric CompanyInventors: Grigorii Lev Soloveichik, Kirill Vladimirovich Shalyaev, Marsha Mottel Grade, Bruce Fletcher Johnson
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Patent number: 6465101Abstract: Multilayer plastic composite articles comprise at least one poly (alkylene naphthalate) surface layer which is adherent to at least one surface of a substrate which is formed of a thermoplastic resin. Decorative layers can be located between the substrate and the poly (alkylene naphthalate) surface layers.Type: GrantFiled: April 28, 1998Date of Patent: October 15, 2002Assignee: General Electric CompanyInventors: Amy Kathleen MacGregor, Donald George LeGrand, Sterling Bruce Brown, Kenneth Lee Lilly
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Patent number: 6462168Abstract: In one embodiment the present invention is a polycarbonate comprising structural units derived from at least one dihydric phenol, a carbonate precursor, and at least one member selected from the group consisting of an oxanilide-comprising compound, an oxamate-comprising compound, and mixtures thereof. In another embodiment the present invention is a method for making a polycarbonate comprising structural units derived from at least one dihydric phenol and at least one member selected from the group consisting of an oxanilide-comprising compound, an oxamate-comprising compound, and mixtures thereof, which comprises the step of contacting under reactive conditions at least one dihydric phenol, a carbonate precursor, and at least one member selected from the group consisting of an oxanilide-comprising compound, an oxamate-comprising compound, and mixtures thereof. In still another embodiment the present invention is an article comprising a polycarbonate comprising oxanilide structural units.Type: GrantFiled: April 25, 2001Date of Patent: October 8, 2002Assignee: General Electric CompanyInventors: Tiberiu Mircea Siclovan, Daniel Joseph Brunelle, James Edward Pickett, Joseph Anthony Suriano
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Patent number: 6462217Abstract: Organolead compounds such as tetraethyllead are useful in catalyst compositions for the oxidative carbonylation of hydroxyaromatic compounds to diaryl carbonates. They are employed in combination with a Group 8, 9, or 10 metal such as palladium, or a compound thereof, and a bromide or chloride such as tetraethylammonium bromide.Type: GrantFiled: October 30, 2000Date of Patent: October 8, 2002Assignee: General Electric CompanyInventors: Kirill Vladimirovich Shalyaev, Bruce Fletcher Johnson