Patents by Inventor John Robert Campbell
John Robert Campbell has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20040034132Abstract: Disclosed are flame retardant resinous compositions comprising (i) at least one aromatic polycarbonate, (ii) at least one a rubber modified graft copolymer, (iii) at least one silyl borate ester, (iv) at least one organophosphorus compound, and (v) at least one fluoropolymer additive. The compositions exhibit improved surface properties in molded parts.Type: ApplicationFiled: August 16, 2002Publication date: February 19, 2004Applicant: General Electric CompanyInventors: John Robert Campbell, Thomas Miebach
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Patent number: 6613824Abstract: Disclosed are flame retardant resinous compositions comprising (i) at least one aromatic polycarbonate; (ii) at least one of a second polymer having structural units derived from one or more monomers selected from the group consisting of vinyl aromatic monomers, monoethylenically unsaturated nitrile monomers, and C1-C12 alkyl (meth)acrylate monomers; (iii) at least one rubber modified graft copolymer; (iv) at least one polymeric or non-polymeric organic phosphorus species; (v) at least one antidrip agent; and (vi) at least one perfluoroalkanesulfonate salt present in an amount in a range between about 0.01 wt % and about 0.25 wt %, based on the weight of the entire composition. Also disclosed are methods for making said compositions.Type: GrantFiled: November 12, 2001Date of Patent: September 2, 2003Assignee: General Electric CompanyInventors: John Robert Campbell, Thomas Miebach, Monica Marugan, Thomas Arnold Ebeling
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Publication number: 20030139504Abstract: Disclosed are flame retardant resinous compositions comprising (i) at least one aromatic polycarbonate, (ii) at least one silicone source, (iii) at least one boron source, and (iv) optionally at least one member selected from the group consisting of an antidrip agent, a second thermoplastic resin which is not a polycarbonate resin, and a rubber modified graft copolymer. Also disclosed are methods for making said compositions.Type: ApplicationFiled: November 12, 2001Publication date: July 24, 2003Applicant: General Electric CompanyInventors: Thomas Miebach, John Robert Campbell, Monica Marugan, Thomas Arnold Ebeling
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Publication number: 20030109650Abstract: Disclosed are flame retardant resinous compositions comprising (i) at least one aromatic polycarbonate; (ii) at least one of a second polymer having structural units derived from one or more monomers selected from the group consisting of vinyl aromatic monomers, monoethylenically unsaturated nitrile monomers, and C1-C12 alkyl (meth)acrylate monomers; (iii) at least one rubber modified graft copolymer; (iv) at least one polymeric or non-polymeric organic phosphorus species; (v) at least one antidrip agent; and (vi) at least one perfluoroalkanesulfonate salt present in an amount in a range between about 0.01 wt % and about 0.25 wt %, based on the weight of the entire composition. Also disclosed are methods for making said compositions.Type: ApplicationFiled: November 12, 2001Publication date: June 12, 2003Applicant: General Electric CompanyInventors: John Robert Campbell, Thomas Miebach, Monica Marugan, Thomas Arnold Ebeling
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Patent number: 6569929Abstract: The present invention relates to a method for preparing phosphoramides having a glass transition temperature in one embodiment of at least about 0° C., in another embodiment of at least about 10° C., and in still another embodiment of at least about 20° C., the phosphoramides being substantially free of acidic, basic, or halide impurities, or their precursors. The invention also relates to resin compositions comprising at least one thermoplastic resin and at least one phosphoramide having a glass transition temperature of at least about 0° C., wherein the phosphoramide is prepared by the method of the invention.Type: GrantFiled: May 4, 2001Date of Patent: May 27, 2003Assignee: General Electric CompanyInventors: Neal Steven Falcone, John Robert Campbell, James Ross Fishburn
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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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Publication number: 20020111405Abstract: A thermoplastic resin composition with improved heat performance contains an aromatic carbonate resin, a rubber modified graft copolymer comprising a discontinuous rubber phase dispersed in a continuous rigid thermoplastic phase, wherein at least a portion of the rigid thermoplastic phase is chemically grafted to the rubber phase, and a flame retarding amount of an alkali metal or alkaline earth metal salt of an aromatic sulfone sulfonic acid flame retardant.Type: ApplicationFiled: December 20, 2000Publication date: August 15, 2002Applicant: General Electric CompanyInventors: John Robert Campbell, Greg Randall Bradtke
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Patent number: 6433046Abstract: The present invention provides resin compositions comprising a thermoplastic resin, at least one phosphoramide having a glass transition point of at least about 0° C. preferably of at least about 10° C., and most preferably of at least about 20° C.; and at least one adjunct flame retardant. The present invention also relates to articles made from the resin compositions. The present invention also provides methods to make the resin compositions having improved heat properties over compositions known in the art.Type: GrantFiled: October 30, 2000Date of Patent: August 13, 2002Assignee: General Electric CompanyInventors: John Robert Campbell, Hendrik Verhoogt, Walter Van Der Heijden, Egidius Hubertus Johannes Van Der Veeken, Neal Steven Falcone, Johannes Martinus Dina Goossens, Luc Carlos Govaerts, Richard Lucas, James Ross Fishburn
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Patent number: 6388046Abstract: The present invention provides resin compositions comprising a thermoplastic resin and at least one phosphoramide having a glass transition point of at least about 0° C., preferably of at least about 10° C., and most preferably of at least about 20° C. The present invention also relates to articles made from the resin compositions. The present invention also provides methods to make the resin compositions-having improved heat properties over compositions known in the art.Type: GrantFiled: October 30, 2000Date of Patent: May 14, 2002Assignee: General Electric CompanyInventors: John Robert Campbell, John Jeffrey Talley, Neal Steven Falcone, Johannes Martinus Dina Goossens, Luc Carlos Govaerts, Hendrik Verhoogt, Richard Lucas, James Ross Fishburn, Nirajkumar Chaturbhai Patel, Matthew Ladd Reitz
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Publication number: 20020019466Abstract: The present invention relates to a method for preparing phosphoramides having a glass transition temperature in one embodiment of at least about 0° C., in another embodiment of at least about 10° C., and in still another embodiment of at least about 20° C., the phosphoramides being substantially free of acidic, basic, or halide impurities, or their precursors. The invention also relates to resin compositions comprising at least one thermoplastic resin and at least one phosphoramide having a glass transition temperature of at least about 0° C., wherein the phosphoramide is prepared by the method of the invention.Type: ApplicationFiled: May 4, 2001Publication date: February 14, 2002Inventors: Neal Steven Falcone, John Robert Campbell, James Ross Fishburn
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Publication number: 20020013488Abstract: High purity sterically hindered diaryl chlorophosphates, having a purity of at least 98% by weight and a proportion of the corresponding aryl dichlorophosphate less than 1.5% by weight, are prepared by a method including the steps of gradually introducing POCl3 into a mixture of a sterically hindered hydroxyaromatic compound such as 2,6-xylenol and a catalyst such as magnesium chloride, and gradually increasing the temperature of the reaction mixture to a final level in the range of about 135-150° C. The products are capable of reaction with amines such as piperazine to produce sterically hindered phosphoramidates.Type: ApplicationFiled: August 22, 2001Publication date: January 31, 2002Applicant: General Electric CompanyInventors: John Robert Campbell, Paul Edward Howson, Matthew Ladd Reitz
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Patent number: 6291700Abstract: Sterically hindered phosphoramidates such as N,N′-bis[di-(2,6-xylyl)phosphoryl]piperazine are prepared by the reaction of a sterically hindered diaryl chlorophosphate, such as di-(2,6-xylyl) chlorophosphate, with a basic nitrogen compound containing at least two basic N—H groups, preferably a heterocyclic compound such as piperazine, in the presence of an acid acceptor such as triethylamine. The reaction is conducted in methylene chloride or an aromatic hydrocarbon such as toluene as solvent. If an aromatic hydrocarbon is employed, there is also present at least one dipolar aprotic nitrogen compound, such as 4-dimethylaminopyridine, in an amount effective to increase the reaction rate.Type: GrantFiled: March 30, 2000Date of Patent: September 18, 2001Assignee: General Electric CompanyInventors: James Anthony Cella, John Robert Campbell, Paul Edward Howson
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Patent number: 6277988Abstract: Sterically hindered phosphoramidates such as N,N′-bis[di-(2,6-xylenoxy)phosphinyl]piperazine are prepared by the reaction of a sterically hindered diaryl chlorophosphate, such as di-(2,6-xylyl) chlorophosphate, with a basic nitrogen compound containing at least two basic N—H groups, preferably a heterocyclic compound such as piperazine, in a predominantly liquid, solvent-free reaction mixture. The reaction may be conducted in the melt or in the presence of a non-solvent carrier, typically an aliphatic hydrocarbon. An excess of the basic nitrogen compound is employed as an acid acceptor.Type: GrantFiled: February 29, 2000Date of Patent: August 21, 2001Assignee: General Electric CompanyInventors: John Robert Campbell, James Anthony Cella, Gregory Ronald Gillette, John Edward Kochanowski, Matthew Ladd Reitz
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Patent number: 6228912Abstract: The present invention provides resin compositions comprising a thermoplastic resin, at least one phosphoramide having a glass transition point of at least about 0° C., preferably of at least about 10° C., and most preferably of at least about 20° C.; and at least one adjunct flame retardant. The present invention also relates to articles made from the resin compositions. The present invention also provides methods to make the resin compositions having improved heat properties over compositions known in the art.Type: GrantFiled: July 8, 1999Date of Patent: May 8, 2001Assignee: General Electric CompanyInventors: John Robert Campbell, Neal Steven Falcone, Johannes Martinus Dina Goossens, Luc Carlos Govaerts, Hendrik Verhoogt, Richard Lucas, James Ross Fishburn
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Patent number: 6221939Abstract: The present invention provides resin compositions comprising a thermoplastic resin and at least one phosphoramide having a glass transition point of at least about 0° C., preferably of at least about 10° C., and most preferably of at least about 20° C., of the formula: wherein Q1 is oxygen or sulfur; R1 is an amine residue, and R2 and R3 are each independently an alkyloxy, alkylthio, aryloxy, or arylthio residue, or an aryloxy or arylthio residue containing at least one alkyl substitution; or an amine residue. The present invention also relates to articles made from the resin compositions. The present invention also provides methods to make the resin compositions having improved heat properties over compositions known in the art.Type: GrantFiled: July 8, 1999Date of Patent: April 24, 2001Assignee: General Electric CompanyInventors: John Robert Campbell, John Jeffrey Talley, Neal Steven Falcone, Johannes Martinus Dina Goossens, Luc Carlos Govaerts, Hendrik Verhoogt, Richard Lucas, James Ross Fishburn
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Patent number: 6204313Abstract: Flame retardant blends comprising at least one polyestercarbonate, at least one addition polymer such as a styrene-acrylonitrile or ABS copolymer, and at least one phosphoryl flame retardant have high temperature stability properties superior to those of similar blends containing polycarbonate in place of polyestercarbonate.Type: GrantFiled: July 8, 1999Date of Patent: March 20, 2001Assignee: General Electric CompanyInventors: Jos Herman Peter Bastiaens, John Robert Campbell, Luc Carlos Govaerts
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Patent number: 6174942Abstract: Flame retardant blends comprising a polycarbonate portion containing spirobiindane units, at least one addition polymer such as a styrene-acrylonitrile or ABS copolymer, and at least one phosphoryl flame retardant have high temperature stability properties superior to those of similar blends not containing the spirobiindane units. Blends in which the polycarbonate portion contains such units in amounts up to 5 mole percent also have excellent ductility.Type: GrantFiled: July 8, 1999Date of Patent: January 16, 2001Assignee: General Electric CompanyInventors: Jos Herman Peter Bastiaens, John Robert Campbell, Gary Charles Davis, Luc Carlos Govaerts
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Patent number: 5973041Abstract: Bisphosphoramidates such as N,N'-bis[di-(2,6-xylenoxy)phosphinyl]piperazine are effective flame retardant agents for thermoplastic polymers and blends thereof. In addition, the blends containing such bisphosphoramidates have excellent high temperature properties, as demonstrated by high heat deflection temperatures and a low tendency to decrease glass transition temperature.Type: GrantFiled: August 31, 1998Date of Patent: October 26, 1999Assignee: General Electric CompanyInventors: John Robert Campbell, John Jeffrey Talley
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Patent number: 5939490Abstract: Compositions are provided for compatibilized blends comprising compatibilizing poly(phenylene ether) resins and epoxy-functional polyolefins that exhibit improved resistance to delamination while providing high impact strength and other improved physical properties. Articles made from the compositions are useful for automotive lighting and under hood components.Type: GrantFiled: June 12, 1997Date of Patent: August 17, 1999Assignee: General Electric CompanyInventors: Sterling Bruce Brown, John Robert Campbell, Chorng-Fure Robin Hwang, Steven Thomas Rice, Patric A. Rodgers, James Joseph Scobbo, Jr., John Bennie Yates
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Patent number: 5770652Abstract: There is provided a process for making a gel-containing additive concentrate by mixing a reactive polymer such as SAN and a substantially immiscible carrier polymer such as polycarbonate or polystyrene and reactively extruding the reactive polymer and carrier polymer in the presence of a multi-functional crosslinking agent and catalystType: GrantFiled: November 17, 1995Date of Patent: June 23, 1998Inventors: William David Richards, Greg R. Bradtke, Robert Howard Wildi, Linda McAdam Gemmell, Jack Alvon Hill, Vinod Kumar Berry, Catherine Marie Monique Pottier-Metz, John Robert Campbell, Jack Lew Little, Kenneth Gordon Powell