Patents by Inventor Keith Redford
Keith Redford 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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Patent number: 10344189Abstract: A conductive adhesive, such as an anisotropic conductive adhesive, comprising a population of conductive particles and a population of signal particles in an adhesive; wherein both the conductive particle population and the signal particle population have an average particle diameter of <200 ?m with a coefficient of variance of <10%; wherein the signal particles are arranged to provide an indication when they are deformed to a pre-determined height; and wherein the conductive particles are arranged such that they will not fail, e.g. crack or fracture, when deformed to a height larger than or equal to the pre-determined height at which the signal particles are arranged to provide the indication.Type: GrantFiled: July 12, 2013Date of Patent: July 9, 2019Assignee: Conpart ASInventors: Keith Redford, Helge Kristiansen
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Patent number: 9840762Abstract: A process for the preparation of an activated polymer particle comprising contacting a polymer particle with at least one polyamine, wherein said polyamine has three or more amino groups, to form a surface treated polymer particle; and applying a catalyst to the surface treated polymer particle to form an activated polymer particle. In some examples, the process can further comprise applying a metal coating to said activated polymer particle to form a metal coated polymer particle.Type: GrantFiled: October 28, 2011Date of Patent: December 12, 2017Assignee: Conpart ASInventors: Keith Redford, Ionel Halaciuga, Dan V. Goia, Cathrine Braein Nilsen
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Patent number: 9758702Abstract: An isotropic conductive adhesive having silver coated polymer beads within an adhesive matrix and a method of forming an isotropic conductive adhesive are disclosed. The mean average diameter of the polymer cores of the beads is less than 30 ?m, and the silver coating comprises interlinked silver deposits grown from dispersed nucleation sites scattered across the surface of the beads.Type: GrantFiled: May 29, 2013Date of Patent: September 12, 2017Assignee: CONPART ASInventors: Helge Kristiansen, Keith Redford, Tore Helland
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Patent number: 9487632Abstract: Polybranched organic/inorganic hybrid polymer and method for its manufacture. The hybrid polymer has the form of an inorganic core carrying organic branches. The core is first prepared by controlled hydrolysis and condensation of a silane with a structure: X—B—Si(—Y)3 in which X?NR1R2, while R1, R2 are chosen among hydrogen, alkyl and aryl, or R1, R2 are chosen among condensation products, addition products of one or more type of chemical substances such as acids, alcohols, phenols, amines, aldehydes or epoxides. B is a linkage group chosen among alkylene and arylene which may include oxygen, nitrogen, sulphur, phosphorous, silicon and boron. Y is chosen among hydrolyzable residues such as alkoxy, carboxyl, and halogen. The organic branches are developed by substituting N—H hydrogen atoms in the X—B group by reactions that are typical for primary and secondary amines, and/or by adding an acid that causes an addition to the N atoms of the X—B group in the core.Type: GrantFiled: July 14, 2014Date of Patent: November 8, 2016Assignee: Sinvent ASInventors: Ferdinand Männle, Christian Simon, Jest Beylich, Keith Redford, Britt Sommer, Einar Hinrichsen, Erik Andressen, Kjell Olafsen, Terje Didriksen
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Patent number: 9453113Abstract: Polybranched organic/inorganic hybrid polymer and method for its manufacture. The hybrid polymer has the form of an inorganic core carrying organic branches. The core is first prepared by controlled hydrolysis and condensation of a silane with a structure: X—B—Si(—Y)3 in which X=NR1R2, while R1, R2 are chosen among hydrogen, alkyl and aryl, or R1, R2 are chosen among condensation products, addition products of one or more type of chemical substances such as acids, alcohols, phenols, amines, aldehydes or epoxides. B is a linkage group chosen among alkylene and arylene which may include oxygen, nitrogen, sulphur, phosphorous, silicon and boron. Y is chosen among hydrolyzable residues such as alkoxy, carboxyl, and halogen. The organic branches are developed by substituting N—H hydrogen atoms in the X—B group by reactions that are typical for primary and secondary amines, and/or by adding an acid that causes an addition to the N atoms of the X—B group in the core.Type: GrantFiled: July 14, 2014Date of Patent: September 27, 2016Assignee: Sinvent ASInventors: Ferdinand Männle, Christian Simon, Jest Beylich, Keith Redford, Britt Sommer, Einar Hinrichsen, Erik Andressen, Kjell Olafsen, Terje Didriksen
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Patent number: 9214250Abstract: A heat-treated polymer particle comprising an addition polymer core particle which has had swollen and polymerized therein a blend of an aromatic alcohol with an aldehyde or a blend of an aromatic amine or urea with an aldehyde and which has been subsequently heat treated, e.g. to a temperature of at least 150° C.Type: GrantFiled: October 28, 2011Date of Patent: December 15, 2015Assignee: Conpart ASInventors: Keith Redford, Helge Kristiansen, Heidi Johnsen, Ruth Schmid, Justyna Justynska
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Publication number: 20150322298Abstract: A method of applying a conductive adhesive comprising: using a conductive adhesive 18 made up of conductive beads 12 in an adhesive matrix 8, the conductive beads comprising a polymer core and a conductive coating and having a maximum dimension of 100 ?m or less; and depositing droplets of the adhesive 18 on a substrate via a nozzle 20.Type: ApplicationFiled: December 13, 2013Publication date: November 12, 2015Inventors: Helge Kristiansen, Keith Redford, Tore Helland, Jakob Gakkestad, Ottar Opland
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Publication number: 20150175851Abstract: A conductive adhesive, such as an anisotropic conductive adhesive, comprising a population of conductive particles and a population of signal particles in an adhesive; wherein both the conductive particle population and the signal particle population have an average particle diameter of <200 ?m with a coefficient of variance of <10%; wherein the signal particles are arranged to provide an indication when they are deformed to a pre-determined height; and wherein the conductive particles are arranged such that they will not fail, e.g. crack or fracture, when deformed to a height larger than or equal to the pre-determined height at which the signal particles are arranged to provide the indication.Type: ApplicationFiled: July 12, 2013Publication date: June 25, 2015Inventors: Keith Redford, Helge Kristiansen
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Publication number: 20140330034Abstract: Polybranched organic/inorganic hybrid polymer and method for its manufacture. The hybrid polymer has the form of an inorganic core carrying organic branches. The core is first prepared by controlled hydrolysis and condensation of a silane with a structure: X—B—Si(—Y)3 in which X?NR1 R2, while R1, R2 are chosen among hydrogen, alkyl and aryl, or R1, R2 are chosen among condensation products, addition products of one or more type of chemical substances such as acids, alcohols, phenols, amines, aldehydes or epoxides. B is a linkage group chosen among alkylene and arylene which may include oxygen, nitrogen, sulphur, phosphorous, silicon and boron. Y is chosen among hydrolyzable residues such as alkoxy, carboxyl, and halogen. The organic branches are developed by substituting N—H hydrogen atoms in the X—B group by reactions that are typical for primary and secondary amines, and/or by adding an acid that causes an addition to the N atoms of the X—B group in the core.Type: ApplicationFiled: July 14, 2014Publication date: November 6, 2014Applicant: SINVENT ASInventors: Ferdinand MÄNNLE, Christian Simon, Jest Beylich, Keith Redford, Britt Sommer, Einar Hinrichsen, Erik Andressen, Kjell Olafsen, Terje Didriksen
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Publication number: 20140323752Abstract: Polybranched organic/inorganic hybrid polymer and method for its manufacture. The hybrid polymer has the form of an inorganic core carrying organic branches. The core is first prepared by controlled hydrolysis and condensation of a silane with a structure: X—B—Si(—Y)3 in which X?NR1R2, while R1, R2 are chosen among hydrogen, alkyl and aryl, or R1, R2 are chosen among condensation products, addition products of one or more type of chemical substances such as acids, alcohols, phenols, amines, aldehydes or epoxides. B is a linkage group chosen among alkylene and arylene which may include oxygen, nitrogen, sulphur, phosphorous, silicon and boron. Y is chosen among hydrolyzable residues such as alkoxy, carboxyl, and halogen. The organic branches are developed by substituting N—H hydrogen atoms in the X—B group by reactions that are typical for primary and secondary amines, and/or by adding an acid that causes an addition to the N atoms of the X—B group in the core.Type: ApplicationFiled: July 14, 2014Publication date: October 30, 2014Applicant: SINVENT ASInventors: Ferdinand MÄNNLE, Christian Simon, Jest Beylich, Keith Redford, Britt Sommer, Einar Hinrichsen, Erik Andressen, Kjell Olafsen, Terje Didriksen
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Patent number: 8802807Abstract: Polybranched organic/inorganic hybrid polymer and method for its manufacture. The hybrid polymer has the form of an inorganic core carrying organic branches. The core is first prepared by controlled hydrolysis and condensation of a silane with a structure: X—B—Si(—Y)3 in which X?NP1R2, while R1, R2 are chosen among hydrogen, alkyl and aryl, or R1, R2 are chosen among condensation products, addition products of one or more type of chemical substances such as acids, alcohols, phenols, amines, aldehydes or epoxides. B is a linkage group chosen among alkylene and arylene which may include oxygen, nitrogen, sulphur, phosphorous, silicon and boron. Y is chosen among hydrolyzable residues such as alkoxy, carboxyl, and halogen. The organic branches are developed by substituting N—H hydrogen atoms in the X—B group by reactions that are typical for primary and secondary amines, and/or by adding an acid that causes an addition to the N atoms of the X—B group in the core.Type: GrantFiled: April 15, 2005Date of Patent: August 12, 2014Assignee: Sinvent ASInventors: Ferdinand Mannle, Christian Simon, Jest Beylich, Keith Redford, Britt Sommer, Einar Hinrichsen, Erik Andreassen, Kjell Olafsen, Terje Didriksen
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Publication number: 20130323501Abstract: An isotropic conductive adhesive having silver coated polymer beads within an adhesive matrix and a method of forming an isotropic conductive adhesive are disclosed. The mean average diameter of the polymer cores of the beads is less than 30 ?m, and the silver coating comprises interlinked silver deposits grown from dispersed nucleation sites scattered across the surface of the beads.Type: ApplicationFiled: May 29, 2013Publication date: December 5, 2013Applicant: Conpart ASInventors: Helge Kristiansen, Keith Redford, Tore Helland
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Publication number: 20130277621Abstract: A heat-treated polymer particle comprising an addition polymer core particle which has had swollen and polymerised therein a blend of an aromatic alcohol with an aldehyde or a blend of an aromatic amine or urea with an aldehyde and which has been subsequently heat treated, e.g. to a temperature of at least 150° C.Type: ApplicationFiled: October 28, 2011Publication date: October 24, 2013Applicant: CONPART ASInventors: Keith Redford, Helge Kristiansen, Heidi Johnsen, Ruth Schmid, Justyna Justynska
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Publication number: 20130277623Abstract: A process for the preparation of an activated polymer particle comprising contacting a polymer particle with at least one polyamine, wherein said polyamine has three or more amino groups, to form a surface treated polymer particle; and applying a catalyst to the surface treated polymer particle to form an activated polymer particle.Type: ApplicationFiled: October 28, 2011Publication date: October 24, 2013Applicant: CONPART ASInventors: Keith Redford, Ionel Halaciuga, Dan V. Goia, Cathrine Braein Nilsen
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Patent number: 8450451Abstract: Hardener for curing of epoxy resins which produces materials with high abrasion resistance, photostability and chemical resistance, comprising a sol prepared by controlled hydrolysis and condensation of compounds of the type: (X—B—)nSi(—Y)4-n where n=1 or 2, X?SH, —N?C?O, or NR1R2, R1, R2 being chosen from hydrogen, saturated or unsaturated C1-C18-alkyl, substituted or non-substituted aryl, formyl, aliphatic or aromatic carbonyl, carbamoyl, sulphonyl, sulphoxyl, phosphonyl, sulphinyl, phosphinyl, while the carbon chains of said compounds may include one or more of the elements oxygen, nitrogen, sulphur, phosphorus, silicon and boron, and/or may include one or more hydrolysable silane units, or R1, R2 are chosen from condensation products or addition products of one or more types or chemical compounds such as acids, alcohols, phenols, amines, aldehydes or epoxides; B is a spacing group chosen from saturated or unsaturated C1-C18-alkylene, substituted or nonsubstituted arylene, while the carbon chains of the stType: GrantFiled: October 16, 2003Date of Patent: May 28, 2013Assignee: SINTEFInventors: Christian Simon, Ferdinand Männle, Jest Beylich, Rune H. Gaarder, Kjell Windsland, Keith Redford
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Patent number: 7960492Abstract: Polybranched, particulate, organic/inorganic hybrid polymer in the form of a sol-gel product having the basic structure: Formula (I) where X is a linkage group chosen among C1-C18-alkylene and arylene, R1-R6 are chosen among hydrogen, C1-C18-alkyl, aryl, formyl, aliphatic or aromatic carbonyl, carbamoyl, sulphonyl, sulphoxyl, phosfonyl, sulphinyl or phosphinyl, or R1-R6 are chosen among condensation products and addition products of acids, alcohols, phenoles, amines, aldehydes or epoxides.Type: GrantFiled: April 15, 2005Date of Patent: June 14, 2011Assignee: Sinvent AsInventors: Ferdinand Mannle, Christian Simon, Jest Beylich, Keith Redford
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Publication number: 20080039607Abstract: Polybranched, particulate, organic/inorganic hybrid polymer in the form of a sol-gel product having the basic structure: Formula (I) where X is a linakge group chosen among C1-C18-alkylene and arylene, R1-R6 are chosen among hydrogen, C1-C18-alkyl, aryl, formyl, aliphatic or aromatic carbonyl, carbamoyl, sulphonyl, sulphoxyl, phosfonyl, sulphinyl or phosphinyl, or R1-R6 are chosen among condensation products and addition products of acids, alcohols, phenoles, amines, aldehydes or epoxides.Type: ApplicationFiled: April 15, 2005Publication date: February 14, 2008Inventors: Ferdinand Mannle, Christian Simon, Jest Beylich, Keith Redford
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Publication number: 20070260030Abstract: Polybranched organic/inorganic hybrid polymer and method for its manufacture. The hybrid polymer has the form of an inorganic core carrying organic branches. The core is first prepared by controlled hydrolysis and condensation of a silane with a structure: X—B—Si(—Y)3 in which X?NP1 R2, while R1, R2 are chosen among hydrogen, alkyl and aryl, or R1, R2 are chosen among condensation products, addition products of one or more type of chemical substances such as acids, alcohols, phenols, amines, aldehydes or epoxides. B is a linkage group chosen among alkylene and arylene which may include oxygen, nitrogen, sulphur, phosphorous, silicon and boron. Y is chosen among hydrolyzable residues such as alkoxy, carboxyl, and halogen. The organic branches are developed by substituting N—H hydrogen atoms in the X—B group by reactions that are typical for primary and secondary amines, and/or by adding an acid that causes an addition to the N atoms of the X—B group in the core.Type: ApplicationFiled: April 15, 2005Publication date: November 8, 2007Applicant: SINVENT ASInventors: Ferdinand Mannle, Christian Simon, Jest Beylich, Keith Redford, Britt Sommer, Einar Hinrichsen, Erik Andressen, Kjell Olafsen, Terje Didriksen
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Patent number: 7056987Abstract: The present invention refers to a process for preparing cross-linked polyolefins, comprising the steps of adding a diazido compound of the formula (I) N?N?N—X—R—X—N?N=N wherein R represents an aryl, alkyl or aralkyl group having 3 to 20 carbon atoms and X stands for —CO—, —O—CO— —SO2—, —PO2—, —PO3—, or —Si (?O)—, and a peroxide compound of the general formula (II) R1—X1—OO—X2—R2 wherein R1 and R2 are the same or different and represent hydrogen, an aryl, alkyl or aralkyl group having 3 to 20 carbon atoms and optionally comprising further peroxide groups, wherein one of R1 and R2 can form a ring, and X1 and X2 are the same or different and stand for a direct bond, —CO2— or —CO— to a polyolefin in powder or pellet form; mixing the product to obtain a mixture; extruding the mixture in an extruder at a temperature above the decomposition temperature of the diazido compound of formula (I) and of the peroxide compound of formula (II).Type: GrantFiled: August 31, 2001Date of Patent: June 6, 2006Assignee: Borealis Technology OYInventors: Kjetil Borve, Keith Redford, Aage Stori
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Publication number: 20050288395Abstract: Hardener for curing of epoxy resins which produces materials with high abrasion resistance, photostability and chemical resistance, comprising a sol prepared by controlled hydrolysis and condensation of compounds of the type: (X—B—)nSi(—Y)4-n where n=1 or 2, X?SH, —N?C?O, or NR1R2, R1, R2 being chosen from hydrogen, saturated or unsaturated C1-C18-alkyl, substituted or non-substituted aryl, formyl, aliphatic or aromatic carbonyl, carbamoyl, sulphonyl, sulphoxyl, phosphonyl, sulphinyl, phosphinyl, while the carbon chains of said compounds may include one or more of the elements oxygen, nitrogen, sulphur, phosphorus, silicon and boron, and/or may include one or more hydrolysable silane units, or R1, R2 are chosen from condensation products or addition products of one or more types or chemical compounds such as acids, alcohols, phenols, amines, aldehydes or epoxides; B is a spacing group chosen from saturated or unsaturated C1-C18-alkylene, substituted or nonsubstituted arylene, while the carbon chains of the stType: ApplicationFiled: October 16, 2003Publication date: December 29, 2005Inventors: Christian Simon, Ferdinand Mannle, Jest Beylich, Rune Gaarder, Kjell Windsland, Keith Redford