Patents Represented by Attorney, Agent or Law Firm Bernadette M. Bennett
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Patent number: 6667411Abstract: A method for the preparation of organooxysilanes containing at least one silicon-carbon bond is provided which comprises reacting at least one tetraorganooxysilane with at least one transition metal organo compound.Type: GrantFiled: February 26, 2001Date of Patent: December 23, 2003Assignee: General Electric CompanyInventor: Florian Johannes Schattenmann
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Patent number: 6646090Abstract: Condensation curable poly(fluoroorgano)siloxane-poly(silarylene)siloxane block copolymer compositions having a glass transition temperature not exceeding about −54° C. and excellent solvent resistance have been found useful as sealants. Polyalkoxysilylorgano compounds, such as 1,4-bis[trimethoxysilyl(ethyl)]benzene have been found to be effective as cross-linkers.Type: GrantFiled: July 22, 2002Date of Patent: November 11, 2003Assignee: General Electric CompanyInventors: Navjot Singh, John Thomas Leman, John M. Whitney, Herman Otto Krabbenhoft
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Patent number: 6639008Abstract: A silicone composition that includes at least one functionalized polydiorganosiloxane, at least one cure catalyst, at least one reactive diluant, and at least one thermally conductive filler is provided in the present invention. Further embodiments of the present invention include a method for substantially increasing the thermal conductivity of a silicone composition and a thermal interface material containing the aforementioned silicone composition.Type: GrantFiled: November 27, 2001Date of Patent: October 28, 2003Assignee: General Electric CompanyInventors: Larry Neil Lewis, Steven Kennth Gifford, Slawomir Rubinsztajn
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Patent number: 6630525Abstract: A polycarbonate is provided which contains residues of a dihydric phenol, at least one comonomer of a siloxane functional bisphenol, optionally, a branching agent and optionally, a flame retardant. Further embodiments of the present invention includes a method for producing a flame retardant polycarbonate.Type: GrantFiled: October 9, 2001Date of Patent: October 7, 2003Assignee: General Electric CompanyInventors: James Anthony Cella, James Ross Fishburn, James Alan Mahood
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Patent number: 6619294Abstract: A composition and method for making a silicone composition is provided which comprises at least one polysiloxane or silicone resin containing at least one linker, and at least one molecular hook.Type: GrantFiled: July 14, 2000Date of Patent: September 16, 2003Assignee: General Electric CompanyInventors: Matthew David Butts, Susan Adams Nye, Christopher Michael Byrne
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Patent number: 6608163Abstract: The present invention provides polycarbonate copolymers having improved hydrolytic stability, solvent resistance, or combinations thereof. In particular, certain of the copolymers of the invention have improved resistance to dilute caustic solution. Thus, the copolymers of the present invention are particularly useful as structural elements in applications where such elements routinely come in contact with caustic solutions, such as in automatic dishwashing equipment. Preferred comonomers include 4,4′-biphenol, bis-(4-hydroxyphenyl)terephthalamide (“BHPT”), and a bisimide bisphenol obtained by reacting Bisphenol A dianhydride (BPADA) with 4,4′-isopropylidene phenol aniline. The comonomers are utilized along with 2,2-bis(4-hydroxyphenyl)propane (Bisphenol A) in concentrations in a range between about 1 and about 50 weight percent of the repeating units in the polycarbonate.Type: GrantFiled: January 17, 2001Date of Patent: August 19, 2003Assignee: General Electric CompanyInventors: Christian Maria Emile Bailly, Tiberiu Mircea Siclovan
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Patent number: 6592997Abstract: A polydiorganosiloxane with a polar radical with a dipole moment greater than 2 debye provides a polydiorganosiloxane with an initial viscosity in a range between about 100 centipoise and about 50,000 centipoise. Further embodiments of the present invention include a silicone composition, a method for substantially increasing the thermal conductivity of a silicone composition, and a thermal interface material containing a silicone composition wherein the silicone composition includes the aforementioned polydiorganosiloxane.Type: GrantFiled: June 25, 2001Date of Patent: July 15, 2003Assignee: General Electric CompanyInventors: Larry Neil Lewis, Steven Kenneth Gifford
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Patent number: 6593425Abstract: The invention relates to transparent blends of polymers suitable for use in optical articles; the polymers contain residues of BCC and its derivatives, and have properties particularly suited for use in high density optical data storage media. The polymers further contain residues of other polymers, such as &agr;-methyl polystyrene and polystyrene derivatives; bisphenols, such as bisphenol A; cycloaliphatic polyester resins, such as PCCD and its derivatives or some combination of each.Type: GrantFiled: May 17, 2001Date of Patent: July 15, 2003Assignee: General Electric CompanyInventors: Ramesh Hariharan, Gary Charles Davis, Marc Brian Wisnudel
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Patent number: 6582825Abstract: A hydrophobicity imparting particulate is provided in the present invention. A silicone composition comprises (A) a silicone polymer and (B) a hydrophobicity imparting particulate filler that imparts a hydrophobicity property to the composition. An insulator comprises a housing portion that includes a cured product of (A) a silicone polymer and (B) a hydrophobicity imparting particulate filler. A hydrophobicity recovery property of a silicone polymer composition can be improved by determining a target hydrophobicity recovery property for the cured silicone composition, selecting a hydrophobicity imparting particulate (HIP) to impart the hydrophobicity recovery property to the silicone polymer composition and compounding a blend of (A) a silicone polymer and (B) the selected inorganic filler and heating to cure the blend.Type: GrantFiled: August 30, 2001Date of Patent: June 24, 2003Assignee: General Electric CompanyInventors: Jayantha Amarasekera, John Raymond Krahn
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Patent number: 6562470Abstract: A method for making a coated substrate, a system, and articles made thereby are provided wherein the coated substrate comprises a coating composition and a substrate. The coating composition comprises an alkenyl functional compound and a hydride functional compound, and the substrate comprises a catalytically effective amount of a platinum group metal catalyst having the formula ZxPt(0)Ly wherein L comprises an electron-withdrawing ester ligand, a quinone-based ligand, or combination thereof, y is in a range between about 1 and about 4, Z comprises a coordinating ligand, and x is in a range between 0 and about 3 wherein x+y is in a range between about 2 and about 4.Type: GrantFiled: January 10, 2001Date of Patent: May 13, 2003Assignee: General Electric CompanyInventors: John Thomas Leman, Judith Stein, Kathryn Ann Shaffer
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Patent number: 6552122Abstract: Aqueous emulsions of amine functionalized organopolysiloxane particles useful in personal care applications and methods for making are described. Useful compositions can be made by contacting at elevated temperatures, aqueous emulsions of organopolysiloxane particles having a volume average particle diameter in a range between about 300 nanometers and about 1 micron with an amine functionalized organosilicon source material, such as an aminoorganopolyalkoxysilane or an aminoorganopoly(diorganosiloxane) fluid.Type: GrantFiled: February 20, 2001Date of Patent: April 22, 2003Assignee: General Electric CompanyInventors: Daniel Horace Craig, Wayne Francis Morgan
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Patent number: 6521810Abstract: The present invention provides a method for treating contaminated media. The method comprises introducing remediating ions consisting essentially of ferrous ions, and being peroxide-free, in the contaminated media; applying a potential difference across the contaminated media to cause the remediating ions to migrate into contact with contaminants in the contaminated media; chemically degrading contaminants in the contaminated media by contact with the remediating ions; monitoring the contaminated media for degradation products of the contaminants; and controlling the step of applying the potential difference across the contaminated media in response to the step of monitoring.Type: GrantFiled: June 27, 2001Date of Patent: February 18, 2003Assignee: General Electric CompanyInventors: Andrew Philip Shapiro, Roy Fred Thornton, Joseph James Salvo
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Patent number: 6518218Abstract: A catalyst system and method for making carbon fibrils is provided which comprises a catalytic amount of an inorganic catalyst comprising nickel and one of the following substances selected from the group consisting of chromium; chromium and iron; chromium and molybdenum; chromium, molybdenum, and iron; aluminum; yttrium and iron; yttrium, iron and aluminum; zinc; copper; yttrium; yttrium and chromium; and yttrium, chromium and zinc. In a further aspect of the invention, a catalyst system and method is provided for making carbon fibrils which comprises a catalytic amount of an inorganic catalyst comprising cobalt and one of the following substances selected from the group consisting of chromium; aluminum; zinc; copper; copper and zinc; copper, zinc, and chromium; copper and iron; copper, iron, and aluminum; copper and nickel; and yttrium, nickel and copper.Type: GrantFiled: March 28, 2000Date of Patent: February 11, 2003Assignee: General Electric CompanyInventors: Xiao-Dong Sun, Navjot Singh, Lionel Monty Levinson
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Patent number: 6518357Abstract: A flame retardant polycarbonate composition includes (A) at least one polycarbonate and (B) a silsesquioxane flame retardant. The flame retardant polycarbonate composition can be made by providing a polycarbonate and incorporating a flame retardant amount of a silsesquioxane into the polycarbonate. An article can be molded from the composition.Type: GrantFiled: October 4, 2000Date of Patent: February 11, 2003Assignee: General Electric CompanyInventors: Padmavathy Rajagopalan, John Robert Campbell, Larry Neil Lewis
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Patent number: 6514617Abstract: A polymer comprising a tagging material is provided wherein the tagging material comprises at least one organic fluorophore dye, at least one inorganic fluorophore, at least one organometallic fluorophore, at least one semi-conducting luminescent nanoparticle, or combination thereof, wherein the tagging material has a temperature stability of at least about 350° C. and is present in a sufficient quantity such that the tagging material is detectible via a spectrofluorometer at an excitation wavelength in a range between about 100 nanometers and about 1100 nanometers. Further embodiments of the present invention include a method for identifying a polymer and an article comprising a polymer wherein the polymer contains the aforementioned tagging material.Type: GrantFiled: July 11, 2001Date of Patent: February 4, 2003Assignee: General Electric CompanyInventors: Steven Frederick Hubbard, Radislav Alexandrovich Potyrailo, Philippe Schottland, Verghese Thomas
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Patent number: 6515098Abstract: The damping performance of an article and a polycarbonate composition is improved and a storage medium for data is provided with a glass transition temperature greater than about 150° C.Type: GrantFiled: July 2, 2001Date of Patent: February 4, 2003Assignee: General Electric CompanyInventors: Ramesh Hariharan, Kathryn Lynn Longley, Gary Charles Davis, Grant Hay
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Patent number: 6506371Abstract: A composition and method for making a silicone composition is provided which comprises at least one polysiloxane or silicone resin, at least one molecular hook, and at least one linker.Type: GrantFiled: July 14, 2000Date of Patent: January 14, 2003Assignee: General Electric CompanyInventors: Matthew David Butts, Susan Adams Nye, Christopher Michael Byrne
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Patent number: 6501219Abstract: An environmentally favorable method is described for treating an incandescent lamp with a heat curable substantially organic solvent free silicone composition to improve the shatter resistance of the lamp.Type: GrantFiled: July 29, 1999Date of Patent: December 31, 2002Assignee: General Electric CompanyInventors: Laurence Bigio, Ferenc Horkay, Richard Joseph Uriarte, Richard Albert Striker, Juliana Piukaso-Vich Reisman
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Patent number: 6488921Abstract: A composition and method for making a silicone composition is provided which comprises at least one polysiloxane or silicone resin, at least one linker, and at least one molecular hook wherein the molecular hook comprises a heterocyclic trimethylpyrimidinium compound.Type: GrantFiled: July 14, 2000Date of Patent: December 3, 2002Assignee: General Electric CompanyInventors: Matthew David Butts, Susan Adams Nye, Christopher Michael Byrne, Alan Roy Katritzky, Jon Walter Merkert
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Patent number: 6489501Abstract: A method for forming at least one product silane, comprising reacting a transition metal hydride with a starting silane in a presence of a catalyst and at a temperature that exceeds a threshold temperature associated with said reacting.Type: GrantFiled: February 26, 2001Date of Patent: December 3, 2002Assignee: General Electric CompanyInventor: Florian Johannes Schattenmann