Carbon And Hyrogen Only Patents (Class 522/125)
  • Patent number: 10688743
    Abstract: A method for reducing the stickiness on the surface exposed to the air of a sealant layer applied on an inner cavity of a tyre. The method establishes that the surface exposed to the air of the sealant layer is subject to a UV radiation.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: June 23, 2020
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Giuseppe Pezzullo, Marco Bruni, John Nazareno House
  • Patent number: 8889239
    Abstract: The present invention is concerned with the process for preparing a cross-linked stabilized polymer composition using at least one graftable polymer stabilizer, and the subsequent use of that composition for forming pipes, for example PEX pipes. The graftable stabilizer becomes anchored to the polymer such that stabilizer activity is retained in the cross-linked product. Cross-linking can be achieved by conventional processes such as PEXa, PEXb and PEXc. Embodiments demonstrate excellent levels of antioxidant retention (as measured by oxidative induction retention after exhaustive solvent extraction) and the cross-linked product are suitable for portable water applications, including hot water applications.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: November 18, 2014
    Assignee: Aston University
    Inventors: Sahar Al-Malaika, Cezary Lewucha
  • Publication number: 20130197121
    Abstract: A method for making a crosslinked polymeric material for use in an orthopaedic device is described. The method may include the use of one or more crosslinking enhancers to enhance the crosslinking process.
    Type: Application
    Filed: April 26, 2012
    Publication date: August 1, 2013
    Inventors: Richard S. King, Mark D. Hanes, Fu-wen Shen, Venkat Narayan
  • Patent number: 8431065
    Abstract: Methods for making a crosslinked elastomeric composition and articles made of the same are provided. In at least one specific embodiment, an elastomeric composition comprising at least one propylene-based polymer is blended with at least one component selected from the group consisting of multifunctional acrylates, multifunctional methacrylates, functionalized polybutadiene resins, functionalized cyanurate, and allyl isocyanurate; and blended with at least one component selected from the group consisting of hindered phenols, phosphites, and hindered amines. The propylene-based polymer can include propylene derived units and one or more dienes, and have a triad tacticity of from 50% to 99% and a heat of fusion of less than 80 J/g. The blended composition can then be extruded and crosslinked. The extruded polymer can be crosslinked using electron beam radiation having an e-beam dose of about 100 KGy or less. The crosslinked polymers are particularly useful for making fibers and films.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: April 30, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: Sunny Jacob
  • Patent number: 8372894
    Abstract: A method for producing a graft polymer comprises the steps of: a) irradiating a base polymer with an electron beam or a source of ?-radiation, b) contacting a grafting solution with the base polymer, wherein the grafting solution contains at least one oxygen scavenger and at least one graft monomer selected from the group consisting of styrene and styrene derivatives, and c) graft polymerizing the mixture of the base polymer and the grafting solution obtained in step b).
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: February 12, 2013
    Assignee: Belenos Clean Power Holding AG
    Inventor: Dirk Henkensmeier
  • Patent number: 8299139
    Abstract: This invention relates to a process for producing high molecular weight (HMW) and ultra-high molecular weight (UHMW) acrylic polymers having unique polymer tacticity and exhibiting enhanced thermal and mechanical properties. This process comprises polymerizing ethylenically unsaturated monomer in the presence of a free radical initiator that results in a “living-like polymer” utilizing a multi-step approach. In conducting the process of this invention the “living-like polymer” is further dissolved in a liquid carrier, wherein the said liquid carrier is a reactive diluent that can be reacted subsequently by an addition polymerization process to create a block- or multi-block, copolymer or homopolymer. This process can be progressively repeated with the same or various different reactive diluents to generate desired architecture and molecular weight polymer(s) which can be used in further processing procedures to be manufactured directly into finished articles.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: October 30, 2012
    Assignee: Ovation Polymer Technology and Engineered Materials, Inc.
    Inventors: Prasad Taranekar, Austin L. Schuman, Asis Banerjie
  • Patent number: 8288451
    Abstract: A photo-curable resin composition for the UV-LED light source, which is rapidly cured and particularly has excellent surface curing property, is disclosed. The resin composition contains (a) polybutadiene (meth)acrylate; (b) a polythiol compound; and (c) a photo radical initiator and is photo-curable by an irradiation with an ultraviolet light-LED. Accordingly, production efficiency can be significantly increased in the production of liquid crystal displays and electrical and electronic components.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: October 16, 2012
    Assignee: Henkel Corporation
    Inventor: Chunfu Chen
  • Publication number: 20120077899
    Abstract: A process for constructing multi-arm star macromolecules with uniform properties, high molecular weight and narrow molecular weight distribution using free radical polymerization is described.
    Type: Application
    Filed: March 29, 2010
    Publication date: March 29, 2012
    Applicant: CARNEGIE MELLON UNIVERSITY
    Inventors: Krzysztof Matyjaszewski, Haifeng Gao, James Spanswick
  • Patent number: 8129441
    Abstract: The present invention relates to radiation-curable coating compositions which are of low viscosity and comprise (meth)acrylates and divinyl adipate.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: March 6, 2012
    Assignee: BASF Aktiengesellschaft
    Inventors: Oscar Lafuente Cerda, Yvonne Heischkel, Michael Vetter, Reinhold Schwalm, Nick Gruber
  • Patent number: 8076387
    Abstract: The present invention provides an irradiated crosslinked polyethylene containing reduced free radicals, preferably containing substantially no residual free radical. Disclosed is a process of making irradiated crosslinked polyethylene by irradiating the polyethylene in contact with a sensitizing environment at an elevated temperature that is below the melting point, in order to reduce the concentration of residual free radicals to an undetectable level. A process of making irradiated crosslinked polyethylene composition having reduced free radical content, preferably containing substantially no residual free radicals, by mechanically deforming the polyethylene at a temperature that is below the melting point of the polyethylene, optionally in a sensitizing environment, is also disclosed herein.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: December 13, 2011
    Assignees: The General Hospital Corporation, Cambridge Polymer Group, Inc.
    Inventors: Orhun K. Muratoglu, Stephen H. Spiegelberg, Gareth H. McKinley
  • Patent number: 8053486
    Abstract: The invention provides a coating composition comprising a thermal plastic resin selected from the group consisting of a polycycloolefin resin, polyester resin, polyacrylate resin, and a mixture thereof; and a radiation curable resin comprising a radiation polymer containing at least one mono- or multi-functional acrylic acid based monomer as a polymerization unit, an oligomer containing an ethylenically unsaturated functional group, and a photoinitiator, wherein the radiation curable resin is used in an amount of 220-1000% by weight on the basis of the weight of the thermal plastic resin. The invention improves the hardness of the coating composition, prevent the coated substrate from being scratched or impaired, and impart the substrate with high transparency without causing warping problem.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: November 8, 2011
    Assignee: Eternal Chemical Co., Ltd.
    Inventors: Lung-Lin Hsu, Sue-Hong Liu
  • Publication number: 20110245365
    Abstract: A method for producing a graft polymer comprises the steps of: a) irradiating a base polymer with an electron beam or a source of ?-radiation, b) contacting a grafting solution with the base polymer, wherein the grafting solution contains at least one oxygen scavenger and at least one graft monomer selected from the group consisting of styrene and styrene derivatives, and c) graft polymerizing the mixture of the base polymer and the grafting solution obtained in step b).
    Type: Application
    Filed: February 23, 2009
    Publication date: October 6, 2011
    Applicant: Belenos Clean Power Holding AG
    Inventor: Dirk Henkensmeier
  • Patent number: 8030367
    Abstract: The invention relates to the field of chemistry and relates to radically coupled PTFE polymer powders that can be used, for example, as tribomaterials, and a method for the production thereof. There is disclosed radically coupled PTFE polymer powders which, when incorporated into a matrix as PTFE polymer compound, exhibit improved wear resistance, and furthermore a simple and efficient method for the production thereof. There is provided radically coupled PTFE polymer powders comprising radiation-chemically and/or plasma-chemically modified PTFE powders, onto the particle surface of which homopolymers, copolymers or terpolymers are radically coupled via a reaction in dispersion or in solid.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: October 4, 2011
    Assignee: Leibniz-Institut Fuer Polymerforschung Dresden E.V.
    Inventors: Dieter Lehmann, Bernd Kluepfel
  • Publication number: 20100298461
    Abstract: The invention relates to the field of chemistry and relates to radically coupled PTFE polymer powders that can be used, for example, as tribomaterials, and a method for the production thereof. The object of the invention is to disclose radically coupled PTFE polymer powders which, when incorporated into a matrix as PTFE polymer compound, exhibit improved wear resistances, and furthermore a simple and efficient method for the production thereof. The object is attained through radically coupled PTFE polymer powders comprising radiation-chemically and/or plasma-chemically modified PTFE powders, onto the particle surface of which homopolymers, copolymers or terpolymers are radically coupled via a reaction in dispersion or in substance.
    Type: Application
    Filed: July 30, 2010
    Publication date: November 25, 2010
    Applicant: LEIBNIZ-INSTITUT FUER POLYMERFORSCHUNG DRESEDEN E. V.
    Inventors: Dieter LEHMANN, Bernd KLUEPFEL
  • Patent number: 7790780
    Abstract: Radically coupled PTFE polymer powders useful, for example, as tribomaterials, and a method for production thereof. Radically coupled PTFE polymer powders are provided which, when incorporated into a matrix as PTFE polymer compound, exhibit improved wear resistances, and furthermore there is provided a simple and efficient method for the production thereof. Radically coupled PTFE polymer powders are provided comprising radiation-chemically and/or plasma-chemically modified PTFE powders, onto the particle surface of which homopolymers, copolymers or terpolymers are radically coupled via a reaction in dispersion or in substance. A method is provided in which PTFE powders with reactive perfluoroalkyl-(peroxy) radical centers after a radiation-chemical and/or plasma-chemical modification are reacted in dispersion or in substance with the addition of polymerizable, olefinically unsaturated monomers, whereby during the reaction a polymer-forming reaction is obtained.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: September 7, 2010
    Assignee: Leibniz-Institut fuer Polymerforschung Dresden E.V.
    Inventors: Dieter Lehmann, Bernd Kluepfel
  • Publication number: 20100197822
    Abstract: A method for forming reduced creep high molecular weight polyethylene articles, involves irradiating a high molecular weight polyethylene fiber or block, where the polyethylene is polycrystalline with a preferred crystal orientation. The fiber or block is irradiated in an environment including a molecule with a dual reactive functionality to provide cross-linking in the amorphous regions and/or on the surface and an inert gas at a temperature that is below an average alpha transition temperature of the polyethylene. The irradiation can be carried out on a polyethylene fiber by drawing a fiber through a solution containing a grafting agent that can include a molecule with a dual reactive functionality to primarily apply and cross-link the grafting material to the surface of the fiber. The resulting high molecular weight polyethylene article is highly cross linked and includes a plurality of substantially aligned crystals, the article providing an X-ray diffraction pattern evidencing only 2 sharp reflections.
    Type: Application
    Filed: December 1, 2006
    Publication date: August 5, 2010
    Inventors: Anthony B. Brennan, Christopher D. Batich
  • Publication number: 20090182066
    Abstract: Crosslinkable polymers and crosslinked fluoropolymers are prepared from selected fluorinated dienes and monomers containing Br and I. Also disclosed are proton conductive membranes of these crosslinked fluoropolymers.
    Type: Application
    Filed: December 29, 2008
    Publication date: July 16, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Zhen-Yu Yang, Mark Gerrit Roelofs, Randal L. Perry, Amy Qi Han
  • Patent number: 7507774
    Abstract: The present invention provides an irradiated crosslinked polyethylene containing reduced free radicals, preferably containing substantially no residual free radical. Disclosed is a process of making irradiated crosslinked polyethylene by irradiating the polyethylene in contact with a sensitizing environment at an elevated temperature that is below the melting point, in order to reduce the concentration of residual free radicals to an undetectable level. A process of making irradiated crosslinked polyethylene composition having reduced free radical content, preferably containing substantially no residual free radicals, by mechanically deforming the polyethylene at a temperature that is below the melting point of the polyethylene, optionally in a sensitizing environment, is also disclosed herein.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: March 24, 2009
    Assignees: The General Hospital Corporation, Cambridge Polymer Group, Inc.
    Inventors: Orhun K. Muratoglu, Stephen H. Spiegelberg, Gareth H. McKinley
  • Patent number: 7468235
    Abstract: Provided are a barrier coating composition and a method of forming photoresist pattern by an immersion photolithography process using the same. The barrier coating composition includes a polymer corresponding to formula I having a weight average molecular weight (Mw) of 5,000 to 100,000 daltons and an organic solvent, wherein the expressions 1+m+n=1; 0.1?1/(1+m+n)?0.7; 0.3?m/(1+m+n)?0.9; and 0.0?n/(1+m+n)?0.6 are satisfied; Rf is a C1 to C5 fluorine-substituted hydrocarbon group; and Z, if present, includes at least one hydrophilic group. Compositions according to the invention may be used to form barrier layers on photoresist layers to suppress dissolution of photoresist components during immersion photolithography while allowing the barrier layer to be removed by alkaline developing solutions.
    Type: Grant
    Filed: June 7, 2006
    Date of Patent: December 23, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Mitsuhiro Hata, Sang-Jun Choi, Man-Hyoung Ryoo
  • Patent number: 7432037
    Abstract: The invention provides a curable resin composition having an addition polymerization-based block copolymer (I) and an ethylenic unsaturated compound (II). Also provided is a flexographic plate material using the curable resin composition as its constituent. The flexographic plate material containing the curable resin composition of the present invention, can be cured to form strong and extendable areas and can be used to make flexographic plates that can form a sharp image plate surface even for a fine image. The flexographic plate material of the present invention is particularly useful in printing on cardboards, recycled paper or other paper articles with rough surfaces.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: October 7, 2008
    Assignee: Kuraray Co., Ltd.
    Inventors: Kenji Suzuki, Kenji Shachi, Mizuho Maeda
  • Patent number: 7304097
    Abstract: The present invention provides an irradiated crosslinked polyethylene containing reduced free radicals, preferably containing substantially no residual free radical. Disclosed is a process of making irradiated crosslinked polyethylene by irradiating the polyethylene in contact with a sensitizing environment at an elevated temperature that is below the melting point, in order to reduce the concentration of residual free radicals to an undetectable level. A process of making irradiated crosslinked polyethylene composition having reduced free radical content, preferably containing substantially no residual free radicals, by mechanically deforming the polyethylene at a temperature that is below the melting point of the polyethylene, optionally in a sensitizing environment, is also disclosed herein.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: December 4, 2007
    Assignees: Massachusetts General Hospital, Cambridge Polymer Group, Inc.
    Inventors: Orhun K. Muratoglu, Stephen H. Spiegelberg, Gareth H. McKinley
  • Patent number: 7300984
    Abstract: A process for preparing a graft copolymers is provided comprising exposing a polymeric base material to a dose of ionizing radiation, and then contacting the irradiated base material with a microemulsion comprising at least one fluorostyrenic monomer, water and water-miscible solvent. The graft copolymer may be formed into a membrane, including ion exchange membranes.
    Type: Grant
    Filed: November 3, 2004
    Date of Patent: November 27, 2007
    Assignee: Ballard Power Systems Inc.
    Inventor: Sean M MacKinnon
  • Patent number: 7238732
    Abstract: A radiation-curable adhesive composition comprising at least one tackifier resin and at least one radiation-curable composition is provided wherein the tackifier resin comprises monomer repeating units from at least one aromatic monomer and at least one acrylate monomer. Processes to produce the radiation-curable adhesive composition as well as articles comprising the radiation-curable adhesive compositions are also provided.
    Type: Grant
    Filed: February 18, 2004
    Date of Patent: July 3, 2007
    Assignee: Eastman Chemical Company
    Inventors: Derek William Bamborough, Elisabeth Eduarda Catharina Geertruida Gielens, Clazina Cornelia Adriana Adriaanse, Peter Versluijs, Michel Hendrikus Theelen
  • Patent number: 7192991
    Abstract: A cationically curable composition comprises (a) at least one cationically curable species; (b) at least one cationic photoinitiator; and (c) at least one encapsulated, polymer-bound base.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: March 20, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Michael A. Kropp, Wayne S. Mahoney, Bridget K. Warmka
  • Patent number: 7183334
    Abstract: A method of preparing fiber sheet molding compounds with a fabric of continuous fiber reinforcement that can be molded under low pressures and temperatures to provide thermoset articles, wherein liquid reactive components are slowly absorbed in solid acrylic resin. The acrylic resin functions as a thickener which delays the viscosity build allowing the fabric of continuous fiber reinforcement to be incorporated before molding.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: February 27, 2007
    Assignee: Reinforced Polymers, Inc.
    Inventor: Robert Guzauskas
  • Patent number: 7166650
    Abstract: The present invention provides an irradiated crosslinked polyethylene containing reduced free radicals, preferably containing substantially no residual free radical. Disclosed is a process of making irradiated crosslinked polyethylene by irradiating the polyethylene in contact with a sensitizing environment at an elevated temperature that is below the melting point, in order to reduce the concentration of residual free radicals to an undetectable level. A process of making irradiated crosslinked polyethylene composition having reduced free radical content, preferably containing substantially no residual free radicals, by mechanically deforming the polyethylene at a temperature that is below the melting point of the polyethylene, optionally in a sensitizing environment, is also disclosed herein.
    Type: Grant
    Filed: January 7, 2005
    Date of Patent: January 23, 2007
    Assignees: Massachusetts General Hospital, Cambridge Polymer Group, Inc.
    Inventors: Orhun K. Muratoglu, Stephen H. Spiegelberg, Gareth H. McKinley
  • Patent number: 7037972
    Abstract: A multicomponent system curable thermally and with actinic radiation (dual cure), comprising (A) at least one component comprising at least one constituent containing at least one isocyanate-reactive functional group and at least one functional group having at least one bond which can be activated with actinic radiation, and at least one vinylaromatic-allyl alcohol copolymer, and (B) at least one component comprising at least one polyisocyanate, and its use as a coating material, adhesive and sealing compound.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: May 2, 2006
    Assignee: BASF Coatings AG
    Inventors: Egbert Nienhaus, Bernhard Lettmann
  • Patent number: 7030171
    Abstract: The objective of the present invention is to provide a production method by which a polymer of a functional group-terminated vinyl monomer can be easily and practically produced. Further, it is another object of the present invention to provide a functional group-terminated vinyl polymer which is useful as a material for the production of various functional products. The first aspect of the present invention is concerned with a production method of a functional group-terminated vinyl polymer comprising a step of synthesizing a halogen atom-terminated vinyl polymer by the radical polymerization reaction of a vinyl monomer in the presence of a halogen compound and a step of introducing a functional group to a terminus by substituting a functional group-containing group for the terminal halogen atom of said vinyl polymer.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: April 18, 2006
    Assignee: Sekisui Chemical Co., Ltd.
    Inventors: Takeshi Wakiya, Takamaro Kakehi
  • Patent number: 6852772
    Abstract: The present invention provides an irradiated crosslinked polyethylene containing reduced free radicals, preferably containing substantially no residual free radical. Disclosed is a process of making irradiated crosslinked polyethylene by irradiating the polyethylene in contact with a sensitizing environment at an elevated temperature that is below the melting point, in order to reduce the concentration of residual free radicals to an undetectable level. A process of making irradiated crosslinked polyethylene composition having reduced free radical content, preferably containing substantially no residual free radicals, by mechanically deforming the polyethylene at a temperature that is below the melting point of the polyethylene, optionally in a sensitizing environment, is also disclosed herein.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: February 8, 2005
    Assignees: Massachusetts Gerneral Hospital, Cambridge Polymer Group, Inc.
    Inventors: Orhun K. Muratoglu, Stephen H. Spiegelberg, Gareth H. McKinley
  • Patent number: 6828386
    Abstract: A process for preparing a graft copolymers is provided comprising exposing a polymeric base material to a dose of ionizing radiation, and then contacting the irradiated base material with a microemulsion comprising at least one fluorostyrenic monomer, water and water-miscible solvent. The graft copolymer may be formed into a membrane, including ion exchange membranes.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: December 7, 2004
    Assignee: Ballard Power Systems Inc.
    Inventor: Sean M. MacKinnon
  • Patent number: 6693142
    Abstract: The objective of the present invention is to provide a production method by which a polymer of a functional group-terminated vinyl monomer can be easily and practically produced. Further, it is another object of the present invention to provide a functional group-terminated vinyl polymer which is useful as a material for the production of various functional products. The first aspect of the present invention is concerned with a production method of a functional group-terminated vinyl polymer comprising a step of synthesizing a halogen atom-terminated vinyl polymer by the radical polymerization reaction of a vinyl monomer in the presence of a halogen compound and a step of introducing a functional group to a terminus by substituting a functional group-containing group for the terminal halogen atom of said vinyl polymer.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: February 17, 2004
    Assignee: Sekisui Chemical Co., Ltd.
    Inventors: Takeshi Wakiya, Takamaro Kakehi
  • Patent number: 6680144
    Abstract: A method for producing a battery separator is disclosed. The method comprises applying a coating of an ethylenically unsaturated monomer to the fibers of a non-woven sheet and polymerizing the monomer in situ on the fiber surfaces. The non-woven sheet is from 50 to 3000 microns thick, and is composed of polyolefin fibers having an average fiber diameter from 0.5 to 5 microns and a surface area from 0.2 to 30 square meters per gram.
    Type: Grant
    Filed: May 6, 2002
    Date of Patent: January 20, 2004
    Assignee: KVG Technologies, Inc.
    Inventor: Wai M. Choi
  • Patent number: 6664306
    Abstract: This invention relates to polymeric compositions that are processible and may be photochemically cured to produce crosslinked compositions useful in coating, sealants and adhesive applications. The crosslinkable composition comprises a first component having a plurality of pendent, free-radically polymerizable functional groups; a polymeric photoinitiator, and a residual content of less than 2%. The composition is melt processable at temperatures of less than or equal to 100° C.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: December 16, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Babu N. Gaddam, Steven M. Hellmann, Ahmed S. Abuelyaman, Maureen A. Kavanagh, Duane D. Fansler, Kevin M. Lewandowski
  • Patent number: 6632854
    Abstract: A process for producing polypropylene having increased melt strength, the process comprising irradiating polypropylene with an electron beam having an energy of at least 5 MeV and with a radiation dose of from 5 to 100 kGray in the presence of a grafting agent for forming long chain branches on the polypropylene molecules.
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: October 14, 2003
    Assignee: Atofina Research, S.A.
    Inventor: Yves Charlier
  • Patent number: 6515039
    Abstract: The invention relates to a method for the parallel and combinatory synthesis of compounds bound to a continuous polymeric solid phase supporting material. According to the method, a continuous polymeric solid phase supporting material is prepared, the material comprising a matrix of a supporting polymeric material and graft copolymer chains covalently bound to the supporting matrix, the graft copolymer chains having reactive groups being able to react with organic compounds, thereby forming spatially defined reaction sites. The method then comprises the sequential spotting of synthesis building blocks or reagents at the various reaction sites on the continuous solid phase supporting material to yield a substrate library of compounds bound to the solid phase supporting material, whereby each reaction site on the continuous solid phase supporting material determines the composition of the synthesized compound, which is bound directly on the supporting matrix via the reactive groups of the graft polymer chain.
    Type: Grant
    Filed: June 15, 2000
    Date of Patent: February 4, 2003
    Assignee: Poly-An GmbH
    Inventors: Mathias Ulbricht, Rudolf Volkmer-Engert, Lothar Germeroth, Holger Wenschuh
  • Patent number: 6448301
    Abstract: This invention relates to polymeric compositions that are processible and may be photochemically cured to produce crosslinked compositions useful in coating, sealants and adhesive applications. The crosslinkable composition comprises a first component having a plurality of pendent, free-radically polymerizable functional groups; a polymeric photoinitiator, and a residual content of less than 2%. The composition is melt processable at temperatures of less than or equal to 100° C.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: September 10, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Babu N. Gaddam, Steven M. Heilmann, Ahmed S. Abuelyaman, Maureen A. Kavanagh, Duane D. Fansler, Kevin M. Lewandowski
  • Patent number: 6444722
    Abstract: Graft copolymers with low molecular weight side chains are prepared by (1) irradiating a propylene polymer material in the absence of oxygen, (2) adding a controlled amount of oxygen to the irradiated polymer material so that the polymer is exposed to an amount of oxygen greater than 0.004% but less than 15% by volume at a temperature of 40° C. to 140° C., to produce an oxidized propylene polymer material containing greater than 1 mmol total peroxide per kilogram of propylene polymer material, (3) optionally, heating the oxidized propylene polymer material in a non-oxidizing atmosphere to a temperature of at least 80° C.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: September 3, 2002
    Assignee: Basell Poliolefine Italia S.p.A.
    Inventors: Vu A. Dang, Cheng Q. Song
  • Patent number: 6326127
    Abstract: The present invention relates to a photo-curable polymer composition comprising (a) a first block copolymer comprising at least two blocks A of polymerised monovinyl aromatic monomer, at least one internal block B of polymerised conjugated diene monomer, and at least one tapered or random block C of polymerised monovinyl aromatic monomer and polymerised conjugated diene monomer and/or at least one block D which may be a block of polymerised conjugated diene monomer or a tapered or random block of polymerised monovinyl aromatic monomer and polymerised conjugated diene monomer, wherein block C is an internal polymer block adjacent a terminal block A or an internal block A which is adjacent to a terminal block D, and block D is a terminal block adjacent an internal block A, and, optionally, a residue of a coupling agent, wherein the residue, if present, is derived from a coupling agent containing alkoxy or epoxy functional groups; and (b) a photo-initiator.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: December 4, 2001
    Assignee: Kraton Polymers U.S. LLC
    Inventors: Karin Marie-Louise Renee Morren, Xavier Muyldermans
  • Patent number: 6231804
    Abstract: A high molecular weight polyethylene prepared by preliminary polymerization is added at the time of main polymerization of an olefin, for example, propylene, to prepare an olefin (co)polymer composition comprising the above high molecular weight polyethylene finely dispersed as fine particles in the polyolefin, such as polypropylene, and a cross-linked structure is formed in the olefin (co)polymer composition. This process can provide a modified olefin (co)polymer composition improved in the strength in a molten state in terms of melt tension or the like and in crystallization temperature and excellent in moldability such as high-speed producibility, and a molded modified olefin (co)polymer composition excellent in properties such as heat resistance and rigidity.
    Type: Grant
    Filed: October 1, 1999
    Date of Patent: May 15, 2001
    Assignee: Chisso Corporation
    Inventors: Akira Yamauchi, Shingo Kikukawa, Jun Saito, Hitoshi Sato
  • Patent number: 6225368
    Abstract: A monomer-grafted cross-linked polymer is prepared by the steps of activating a polymer by radiation, quenching the activated polymer so as to effect cross-linking therein, activating the cross-linked polymer by irradiation and contacting the activated cross-linked polymer with an emulsion that includes an unsaturated monomer, an emulsifier and water. The activated cross-linked polymer is contacted with the emulsion for a sufficient time to effect a desired extent of grafting.
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: May 1, 2001
    Assignee: National Power PLC
    Inventors: Vincent F. D'Agostino, John Michael Newton
  • Patent number: 6162843
    Abstract: Polypropylene is crosslinked by means of an ionizing radiation followed by annealing at a temperature of at least 110.degree. C., in the presence of an unsaturated monomeric compound such as acetylene or 1,3-butadiene or 1,3,5-hexatriene.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: December 19, 2000
    Inventors: Harold M. Fisher, Richard Albert Jones, Ian Macmillan Ward
  • Patent number: 6020394
    Abstract: A process for preparing a modified polyalkylene, preferably polyethylene or polypropylene, polymer product is described. The process involves treating the polymer in an impregnation step with UV radiation in the presence of a carbonyl bearing photoinitiator species and a crosslinking species. The radiation may take place in a gaseous or liquid environment which is substantially free of oxygen gas but which comprises at least one of the species.
    Type: Grant
    Filed: February 23, 1998
    Date of Patent: February 1, 2000
    Assignee: Celgard LLC
    Inventors: Richard A. Jones, Ian M. Ward
  • Patent number: 5994426
    Abstract: A solid-polymer-electrolyte membrane for a polymer-electrolyte fuel cell is formed of a synthetic resin. The synthetic resin includes a main chain, and a hydrocarbon-based side chain. The main chain is formed as a film, and formed of a copolymer made from a fluorocarbon-based vinyl monomer and a hydrocarbon-based vinyl monomer. The hydrocarbon-based side chain involves a sulfonic group. The solid-polymer-electrolyte membrane exhibits a high strength and flexibility, but a low electric resistance, and can be produced at a reduced manufacturing cost. Thus, the solid-polymer-electrolyte membrane can be effectively applied to construct polymer-electrolyte fuel cells.
    Type: Grant
    Filed: January 23, 1998
    Date of Patent: November 30, 1999
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Shinji Nezu, Masaki Gondo
  • Patent number: 5902836
    Abstract: Solute polymers in solvent monomers form a coatable syrup that can be cured to a viscoelastomeric material when radiation-sensitive .alpha.-cleaving groups in either the polymer or one of the monomers are exposed to ultraviolet radiation. The solute polymers can be formed from the solvent monomers in situ or be added thereto to form the syrup.
    Type: Grant
    Filed: August 23, 1995
    Date of Patent: May 11, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Greggory S. Bennett, Gaddam N. Babu, Kejian Chen, Louis E. Winslow, George F. Vesley, Patrick G. Zimmerman
  • Patent number: 5817718
    Abstract: A solid-polymer-electrolyte membrane for a polymer-electrolyte fuel cell is formed of a synthetic resin. The synthetic resin includes a main chain, and a hydrocarbon-based side chain. The main chain is formed as a film, and formed of a copolymer made from a fluorocarbon-based vinyl monomer and a hydrocarbon-based vinyl monomer. The hydrocarbon-based side chain involves a sulfonic group. The solid-polymer-electrolyte membrane exhibits a high strength and flexibility, but a low electric resistance, and can be produced at a reduced manufacturing cost. Thus, the solid-polymer-electrolyte membrane can be effectively applied to construct polymer-electrolyte fuel cells.
    Type: Grant
    Filed: July 31, 1996
    Date of Patent: October 6, 1998
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Shinji Nezu, Masaki Gondo
  • Patent number: 5773485
    Abstract: Solute polymers in solvent monomers form a coatable syrup that can be cured to a viscoelastomeric material when radiation-sensitive hydrogen abstracting groups in either the polymer or one of the monomers are exposed to ultraviolet radiation. The solute polymers can be formed from the solvent monomers.
    Type: Grant
    Filed: August 23, 1995
    Date of Patent: June 30, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Greggory S. Bennett, Louis E. Winslow, Gaddam N. Babu
  • Patent number: 5743940
    Abstract: A process for producing a fabric absorbent that is capable of efficient removal of odorous substances, in particular malodorous substances. The absorbent is obtained by exposing an organic high-molecular weight compound, such as polyolefinic polymers or halogenated polyolefinic polymers, to an ionizing radiation and thereafter graft polymerizing the high-molecular weight compound with a polymerizable monomer that contains ion-exchange groups and/or a polymerizable monomer that can be converted to ion-exchange groups so as to incorporate the ion-exchange groups in the high-molecular weight compound.
    Type: Grant
    Filed: June 23, 1994
    Date of Patent: April 28, 1998
    Assignees: Japan Atomic Energy Research Institute, Ebara Corporation
    Inventors: Takanobu Sugo, Jiro Okamoto, Kunio Fujiwara, Hideaki Sekiguchi, Toshiaki Fujii
  • Patent number: 5728747
    Abstract: A free radical polymerization process for the preparation of polymer comprising:a first heating and photoinitiating with ultraviolet light of a mixture comprised of a stable free radical agent, and at least one polymerizable monomer compound;optionally cooling said mixture;a second heating of said mixture at a temperature of from about 100.degree. C. to about 160.degree. C.;isolating the polymer product formed; andoptionally washing and drying said polymer.
    Type: Grant
    Filed: August 8, 1996
    Date of Patent: March 17, 1998
    Assignee: Xerox Corporation
    Inventors: Peter M. Kazmaier, Barkev Keoshkerian, Rafik O. Loutfy, Karen A. Moffat, Michael K. Georges, Gordon K. Hamer, Richard P. N. Veregin
  • Patent number: 5652281
    Abstract: Disclosed are graft copolymers of polyolefins and a method of preparing the graft copolymers. The method includes irradiating a mass of olefin polymer particles and thereafter treating the mass of particles with a vinyl monomer in liquid form. A nonoxidizing environment is maintained throughout the process while free radicals produced in the olefin polymer by the irradiation are present, thereby preventing degradation of the polymer. In a final step, residual free radicals are deactivated, and any unreacted monomer is removed.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: July 29, 1997
    Assignee: Montell North America Inc.
    Inventors: Paolo Galli, Anthony J. DeNicola, Jr., Jeanine A. Smith
  • Patent number: 5536772
    Abstract: This invention provides a radiation cured composition which is curable at low levels of radiation. The composition comprises a crosslinked unsaturated epoxidized diene polymer and a terpene tackifying resin. The invention also encompasses adhesive, coating and sealant compositions made with the above composition.
    Type: Grant
    Filed: June 18, 1993
    Date of Patent: July 16, 1996
    Assignee: Shell Oil Company
    Inventors: Steven H. Dillman, James R. Erickson