Patents by Inventor Brian Benicewicz
Brian Benicewicz 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: 20100216051Abstract: The present invention relates to a proton-conducting polymer membrane which comprises polyazole blends and is obtainable by a process comprising the steps A) preparation of a mixture comprising polyphosphoric acid, at least one polyazole (polymer A) and/or one or more compounds which are suitable for forming polyazoles under the action of heat according to step B), B) heating of the mixture obtainable according to step A) under inert gas to temperatures of up to 400° C., C) application of a layer using the mixture from step A) and/or B) to a support, D) treatment of the membrane formed in step C) until it is self-supporting, wherein at least one further polymer (polymer B) which is not a polyazole is added to the composition obtainable according to step A) and/or step B) and the weight ratio of polyazole to polymer B is in the range from 0.1 to 50.Type: ApplicationFiled: May 10, 2010Publication date: August 26, 2010Applicant: BASF Fuel Cell GmbHInventors: Oemer Uensal, Joachim Kiefer, Gordon Calundann, Michael J. Sansone, Brian Benicewicz, Eui W. Choe
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Patent number: 7745030Abstract: A proton-conducting polymer membrane comprising polyazoles containing sulfonic acid groups is obtainable by a process comprising: A) mixing one or more aromatic or heteroaromatic tetraamino compounds with one or more aromatic or heteroaromatic carboxylic acids or derivatives thereof which contain at least two acid groups per carboxylic acid monomer, with at least part of the tetraamino compounds or the carboxylic acids comprising at least one sulfonic acid group, or mixing of one or more aromatic or heteroaromatic diaminocarboxylic acids, of which at least part comprises sulfonic acid groups, in polyphosphoric acid to form a solution or dispersion; B) optionally heating the solution or dispersion obtained by step A) under inert gas to temperatures of up to 325° C. to form polyazole polymers; C) applying a layer using the mixture from step A) or B) to a support, thus forming a membrane, and D) partially hydrolyzing the polyphosphoric acid moieties of the membrane from step C) until it is self-supporting.Type: GrantFiled: October 2, 2003Date of Patent: June 29, 2010Assignee: BASF Fuel Cell GmbHInventors: Oemer Uensal, Joachim Kiefer, Gordon Calundann, Michael Sansone, Brian Benicewicz, Eui Wong Choe
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Patent number: 7736779Abstract: The present invention relates to a proton-conducting polymer membrane which comprises polyazole blends and is obtainable by a process comprising the steps A) preparation of a mixture comprising polyphosphoric acid, at least one polyazole (polymer A) and/or one or more compounds which are suitable for forming polyazoles under the action of heat according to step B), B) heating of the mixture obtainable according to step A) under inert gas to temperatures of up to 400° C., C) application of a layer using the mixture from step A) and/or B) to a support, D) treatment of the membrane formed in step C) until it is self-supporting, wherein at least one further polymer (polymer B) which is not a polyazole is added to the composition obtainable according to step A) and/or step B) and the weight ratio of polyazole to polymer B is in the range from 0.1 to 50.Type: GrantFiled: October 2, 2003Date of Patent: June 15, 2010Assignee: BASF Fuel CellInventors: Oemer Uensal, Joachim Kiefer, Gordon Calundann, Michael J. Sansone, Brian Benicewicz, Eui W. Choe
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Patent number: 7736778Abstract: A proton-conducting polymer membrane comprising polyazoles containing phosphonic acid groups is obtainable by a process comprising: A) mixing one or more aromatic or heteroaromatic tetraamino compounds with one or more aromatic or heteroaromatic carboxylic acids or derivatives thereof which contain at least two acid groups per carboxylic acid monomer, with at least part of the tetraamino compounds or the carboxylic acids comprising at least one phosphonic acid group, or mixing of one or more aromatic or heteroaromatic diaminocarboxylic acids, of which at least part comprises phosphonic acid groups, in polyphosphoric acid to form a solution or dispersion; B) optionally heating the solution or dispersion obtained by step A) under inert gas to temperatures of up to 350° C.Type: GrantFiled: October 2, 2003Date of Patent: June 15, 2010Assignee: BASF Fuel Cell GmbHInventors: Oemer Uensal, Joachim Kiefer, Gordon Calundann, Michael Sansone, Brian Benicewicz, Eui Wong Choe
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Patent number: 7696302Abstract: The invention under consideration concerns novel high-molecular-weight polyazoles, which are suitable for the production of fibers, films, membranes, and molded articles, on the basis of their high molecular weight, expressed as intrinsic viscosity, of at least 1.3 dl/g. Moreover, the invention under consideration describes a method for the production of high-molecular-weight polyazoles.Type: GrantFiled: December 2, 2003Date of Patent: April 13, 2010Assignee: PBI Performance Products, Inc.Inventors: Gordon Calundann, Oemer Uensal, Brian Benicewicz, Bobby G. Dawkins, J. Dean Baker, Rita H. Joiner
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Patent number: 7661542Abstract: The present invention relates to a proton-conducting polymer membrane which comprises polyazoles and is coated with a catalyst layer and is obtainable by a process comprising the steps A) preparation of a mixture comprising polyphosphoric acid, at least one polyazole (polymer A) and/or one or more compounds which are suitable for forming polyazoles under the action of heat according to step B), B) heating of the mixture obtainable according to step A) under inert gas to temperatures of up to 400° C., C) application of a layer using the mixture obtained according to step A) and/or B) to a support, D) treatment of the membrane formed in step C) until it is self-supporting, E) application of at least one catalyst-containing coating to the membrane formed in step C) and/or in step D).Type: GrantFiled: October 2, 2003Date of Patent: February 16, 2010Assignee: BASF Fuel Cell GmbHInventors: Jochen Baurmeister, Isabel Kundler, Christoph Padberg, Oemer Uensal, Joachim Kiefer, Gordon Calundann, Brian Benicewicz, Mathias Weber
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Publication number: 20080119634Abstract: The invention under consideration concerns novel high-molecular-weight polyazoles, which are suitable for the production of fibers, films, membranes, and molded articles, on the basis of their high molecular weight, expressed as intrinsic viscosity, of at least 1.3 dl/g. Moreover, the invention under consideration describes a method for the production of high-molecular-weight polyazoles.Type: ApplicationFiled: December 2, 2003Publication date: May 22, 2008Inventors: Gordon Calundann, Oemer Uensal, Brian Benicewicz, Bobby G. Dawkins, J. Dean Baker, Rita H. Joiner
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Patent number: 7332552Abstract: The present invention relates to low odor ?-cyano-dithiocarboxylic ester compounds of formula I for use as chain transfer agents in free radical polymerizations, and polymerization processes employing them: wherein R1 is selected from alkyl, substituted alkyl, heteroaryl, substituted heteroaryl, alkylaryl, substituted alkylaryl, aryl, substituted aryl, alkoxy, aryloxy, thioalkyl, thioaryl, substituted thioalkyl, substituted thioaryl, secondary amino and tertiary amino; R2 is selected from alkyl, aryl, substituted aryl, heteroaryl, substituted heteroaryl, and COOR3; and R3 is alkyl.Type: GrantFiled: May 27, 2004Date of Patent: February 19, 2008Assignee: Rensselaer Polytechnic InstituteInventors: Brian Benicewicz, Chunzhao Li
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Patent number: 7317066Abstract: Liquid crystal polyester derived from phenylene-naphthalene monomers and one or more comonomers display an improved balance of properties, including low melt viscosity, fast cycle time in molding, very low mold shrinkage, high tensile and/or flexural strength, solvent resistance, excellent barrier properties, low water absorption, low thermal expansion coefficient, excellent thermostability, and/or low flammability. The phenylene-naphthalene monomers are The one or more comonomers include 4-hydroxybenzoic acid, 2-hydroxy-6-naphthoic acid, terephthalic acid, isophthalic acid, and derivatives and combinations thereof.Type: GrantFiled: August 29, 2006Date of Patent: January 8, 2008Assignee: Rensselaer Polytechnic InstituteInventors: Brian Benicewicz, Jiping Shao
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Publication number: 20070193885Abstract: Apparatus and methods are provided for electrochemical hydrogen manipulation. In one example, an electrochemical cell is provided utilizing an acid doped polybenzimidazole membrane having a proton conductivity of at least 0.1 S/cm and comprising phosphoric acid in a ratio of at least 20 moles phosphoric acid to polybenzimidazole repeating unit. The polybenzimidazole membrane can be produced by a sol-gel process. Additional concepts are also described.Type: ApplicationFiled: January 27, 2007Publication date: August 23, 2007Applicant: H2 Pump LLCInventors: Brian Benicewicz, Glenn Eisman
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Publication number: 20070151926Abstract: The invention under consideration concerns novel his-molecular-weight polyazoles, which are suitable for the production of fibers, films, membranes, and molded articles, on the basis of their high molecular weight, expressed as intrinsic viscosity, of at least 1.3 dl/g. Moreover, the invention under consideration describes a method for the production of high-molecular-weight polyazoles.Type: ApplicationFiled: March 12, 2007Publication date: July 5, 2007Inventors: Gordon Calundann, Oemer Uensal, Brian Benicewicz, Bobby Dawkins, J. Baker, Rita Joiner
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Publication number: 20070088140Abstract: The present invention relates to low odor ?-cyano-dithiocarboxylic ester compounds of formula I for use as chain transfer agents in free radical polymerizations, and polymerization processes employing them: wherein R1 is selected from alkyl, substituted alkyl, heteroaryl, substituted heteroaryl, alkylaryl, substituted alkylaryl, aryl, substituted aryl, alkoxy, aryloxy, thioalkyl, thioaryl, substituted thioalkyl, substituted thioaryl, secondary amino and tertiary amino; R2 is selected from alkyl, aryl, substituted aryl, heteroaryl, substituted heteroaryl, and COOR3; and R3 is alkyl.Type: ApplicationFiled: May 27, 2004Publication date: April 19, 2007Inventors: Brian Benicewicz, Chunzhao Li
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Publication number: 20060293490Abstract: Liquid crystal polyester derived from phenylene-naphthalene monomers and one or more comonomers display an improved balance of properties, including low melt viscosity, fast cycle time in molding, very low mold shrinkage, high tensile and/or flexural strength, solvent resistance, excellent barrier properties, low water absorption, low thermal expansion coefficient, excellent thermostability, and/or low flammability. The phenylene-naphthalene monomers are The one or more comonomers include 4-hydroxybenzoic acid, 2-hydroxy-6-naphthoic acid, terephthalic acid, isophthalic acid, and derivatives and combinations thereof.Type: ApplicationFiled: August 29, 2006Publication date: December 28, 2006Inventors: Brian Benicewicz, Jiping Shao
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Patent number: 7148311Abstract: Liquid crystal polyester derived from phenylene-naphthalene monomers and one or more comonomers display an improved balance of properties, including low melt viscosity, fast cycle time in molding, very low mold shrinkage, high tensile and/or flexural strength, solvent resistance, excellent barrier properties, low water absorption, low thermal expansion coefficient, excellent thermostability, and/or low flammability. The phenylene-naphthalene monomers are The one or more comonomers include 4-hydroxybenzoic acid, 2-hydroxy-6-naphthoic acid, terephthalic acid, isophthalic acid, and derivatives and combinations thereof.Type: GrantFiled: February 18, 2005Date of Patent: December 12, 2006Assignee: Rensselaer Polytechnic InstituteInventors: Brian Benicewicz, Jiping Shao
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Publication number: 20060210881Abstract: The present invention relates to a novel proton-conducting polymer membrane based on polyazole block polymers which, owing to their outstanding chemical and thermal properties, can be used widely and are suitable in particular as polymer electrolyte membrane (PEM) for producing membrane electrode units or so-called PEM fuel cells.Type: ApplicationFiled: July 23, 2004Publication date: September 21, 2006Inventors: Gordon Calundann, Oemer Uensal, Brian Benicewicz, Eugene Scanlon
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Proton-conducting polymer membrane containing polyazole blends and application thereof in fuel cells
Publication number: 20060078774Abstract: The present invention relates to a proton-conducting polymer membrane which comprises polyazole blends and is obtainable by a process comprising the steps A) preparation of a mixture comprising polyphosphoric acid, at least one polyazole (polymer A) and/or one or more compounds which are suitable for forming polyazoles under the action of heat according to step B), B) heating of the mixture obtainable according to step A) under inert gas to temperatures of up to 400° C., C) application of a layer using the mixture from step A) and/or B) to a support, D) treatment of the membrane formed in step C) until it is self-supporting, wherein at least one further polymer (polymer B) which is not a polyazole is added to the composition obtainable according to step A) and/or step B) and the weight ratio of polyazole to polymer B is in the range from 0.1 to 50.Type: ApplicationFiled: October 2, 2003Publication date: April 13, 2006Applicant: PEMEAS GMBHInventors: Oemer Uensal, Joachim Kiefer, Gordon Calundann, Michael Sansone, Brian Benicewicz, Eui Choe -
Publication number: 20060079392Abstract: The present invention relates to a proton-conducting polymer membrane which comprises polyazoles and is coated with a catalyst layer and is obtainable by a process comprising the steps A) preparation of a mixture comprising polyphosphoric acid, at least one polyazole (polymer A) and/or one or more compounds which are suitable for forming polyazoles under the action of heat according to step B), B) heating of the mixture obtainable according to step A) under inert gas to temperatures of up to 400° C., C) application of a layer using the mixture obtained according to step A) and/or B) to a support, D) treatment of the membrane formed in step C) until it is self-supporting, E) application of at least one catalyst-containing coating to the membrane formed in step C) and/or in step D).Type: ApplicationFiled: October 2, 2003Publication date: April 13, 2006Applicant: PEMEAS GMBHInventors: Jochen Baurmeister, Isabel Kundler, Christoph Padberg, Oemer Uensal, Joachim Kiefer, Gordon Calundann, Brian Benicewicz, Mathias Weber
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Publication number: 20060035095Abstract: The present invention relates to novel polyazoles, a proton-conducting polymer membrane based on these polyazoles and its use as polymer electrolyte membrane (PEM) for producing membrane-electrode units for PEM-fuel cells, and also other shaped bodies comprising such polyazoles.Type: ApplicationFiled: August 20, 2003Publication date: February 16, 2006Applicant: PEMEAS GMBHInventors: Gordon Calundann, Brian Benicewicz, Jochen Baurmeister
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Publication number: 20060008690Abstract: The present invention relates to proton-conducting polymer membranes which comprise polyazoles containing phosphonic acid groups and are obtainable by a process comprising the steps A) mixing of one or more aromatic and/or heteroaromatic tetraamino compounds with one or more aromatic and/or heteroaromatic carboxylic acids or derivatives thereof which contain at least two acid groups per carboxylic acid monomer, with at least part of the tetraamino compounds and/or the carboxylic acids comprising at least one phosphonic acid group, or mixing of one or more aromatic and/or heteroaromatic diaminocarboxylic acids, of which at least part comprises phosphonic acid groups, in polyphosphoric acid to form a solution and/or dispersion, B) heating of the solution and/or dispersion obtainable according to step A) under inert gas at temperatures of up to 350° C.Type: ApplicationFiled: October 2, 2003Publication date: January 12, 2006Inventors: Oemer Uensal, Joachim Kiefer, Gordon Calundann, Michael Sansone, Brian Benicewicz, Eui Choe
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Publication number: 20050197483Abstract: Liquid crystal polyester derived from phenylene-naphthalene monomers and one or more comonomers display an improved balance of properties, including low melt viscosity, fast cycle time in molding, very low mold shrinkage, high tensile and/or flexural strength, solvent resistance, excellent barrier properties, low water absorption, low thermal expansion coefficient, excellent thermostability, and/or low flammability. The phenylene-naphthalene monomers are The one or more comonomers include 4-hydroxybenzoic acid, 2-hydroxy-6-naphthoic acid, terephthalic acid, isophthalic acid, and derivatives and combinations thereof.Type: ApplicationFiled: February 18, 2005Publication date: September 8, 2005Applicant: Rensselaer Polytechnic InstituteInventors: Brian Benicewicz, Jiping Shao