Diene Patents (Class 524/552)
  • Patent number: 10470994
    Abstract: The invention relates to multiphasic polymers comprising from 45% to 95% by weight of a first polymer P1 and from 5% to 55% by weight of a second polymer P2, said polymers P1 and P2 being of distinct compositions, said polymer P1 being obtained by polymerization from a mixture of monomers comprising at least one anionic monomer (a) having a polymerizable vinyl group, at least one nonionic hydrophobic monomer (b) having a polymerizable vinyl group, at least one cross-linking monomer (c) and at least one associative monomer (d) having a polymerizable vinyl group and a hydrophobic hydrocarbon chain and said polymer P2 being obtained by polymerization from a mixture of monomers comprising at least one anionic monomer (a?) having a polymerizable vinyl group, at least one nonionic hydrophobic monomer (b?) having a polymerizable vinyl group and at least one cross-linking monomer (c?).
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: November 12, 2019
    Assignee: COATEX
    Inventors: Clementine Champagne, Jean-Marc Suau, Benoit Magny, Delphine Bony, Yves Kensicher
  • Patent number: 10465028
    Abstract: The present invention relates to a polymer obtained by radical polymerization of a mixture of monomers comprising: at least one anionic monomer (a) having a polymerizable vinyl function; at least one non-ionic hydrophobic monomer (b) having a polymerizable vinyl function; and one or more crosslinking monomer(s) (c) including at least one compound of formula (I) in which R is a hydrogen atom or a methyl group, n is zero or an integer from 1 to 30, and R1 is a linear or branched C1-C20 alkylene group. The present invention also relates to a process for the preparation thereof by radical polymerization, to an aqueous composition comprising same, to the use thereof as a thickener and suspending agent and also to the use of a monomer of formula (I) for synthesizing a polymer.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: November 5, 2019
    Assignee: COATEX
    Inventors: Clementine Champagne, Delphine Bony, Jean-Marc Suau, Yves Kensicher, Benoit Magny
  • Patent number: 9163156
    Abstract: Butyl rubber based coating agents for preparing a coated article, such as a glove, wherein a butyl rubber solution is in the form of a dispersion, and methods of using butyl rubber based coating agents.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: October 20, 2015
    Assignee: Honeywell International Inc.
    Inventors: Michael Johnson, James W. Brown, William Eleazer, Charles Brown
  • Patent number: 9040438
    Abstract: The invention relates to low-viscosity, low-monomer aqueous polymer dispersions based on polychloroprene, and a process for the preparation thereof and the use thereof as a contact adhesive.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: May 26, 2015
    Assignee: Bayer MaterialScience AG
    Inventors: Dirk Achten, Peter Kueker, Juergen Kempkes, Bianka Lorenz, Peter Reichert, Winfried Jeske, Jose Colinas-Martinez
  • Publication number: 20150140224
    Abstract: A coating comprises a resin solution including a solution of neoprene latex and liquid asphalt emulsion and an accelerator solution including an aqueous solution of zinc sulfate powder and water. A spray system for applying the coating includes a spray gun having first and second nozzles, a first pump fluidly connected between the first nozzle and a resin solution reservoir for delivering the resin solution to the first nozzle at a first fluid pressure, and a second pump fluidly connected between the second nozzle and an accelerator solution reservoir for delivering the accelerator solution to the second nozzle at a second fluid pressure different from the first pressure. The accelerator solution may be aerated by a source of compressed air prior to discharge from the second nozzle.
    Type: Application
    Filed: January 26, 2015
    Publication date: May 21, 2015
    Applicant: Harco Americas, Inc.
    Inventor: David H. Smith
  • Patent number: 9010393
    Abstract: Tyre and rubber composition for tyre, based on at least one isoprene elastomer (for example natural rubber), an inorganic filler as reinforcing filler (for example silica) and a coupling system which provides the bonding between the said reinforcing inorganic filler and the isoprene elastomer, the said coupling system comprising, in combination: as first coupling agent, a silane sulphide compound; as second coupling agent, an at least bifunctional organosilicon compound (for example an organosilane or an organosiloxane) which can be grafted to the elastomer by means of an azodicarbonyl functional group (—CO—N?N—CO—).
    Type: Grant
    Filed: May 11, 2006
    Date of Patent: April 21, 2015
    Assignee: Michelin Recherche et Technique, S.A.
    Inventors: Jose Carlos Araujo Da Silva, Nathalie Binde, Pierre Robert, Sebastien Sterin, Anne Veyland
  • Patent number: 9000088
    Abstract: This invention relates to hydrolysable silanes useful in the modification of elastomers, and as coupling agents for diene elastomer compositions containing a filler. In particular the invention relates to novel hydrolysable silanes containing a piperazine ring and an ether or thioether linkage.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: April 7, 2015
    Assignee: Dow Corning Corporation
    Inventors: Michael Wolfgang Backer, Thomas Chaussee, Damien Deheunynck, Sebastien Grofils
  • Publication number: 20150073086
    Abstract: Provided are a vulcanizate of a chloroprene rubber composition containing carbon black that generates a smaller amount of heat when used and a method for producing the same by a simpler and more convenient method. First, an unvulcanized rubber composition at least containing a chloroprene polymer and carbon black is vulcanization-molded, to give a semivulcanized molded article having a cure characteristic value, as determined by the method specified in JIS K6300-2: 2001, in the range of t10 to t80. Then, the semivulcanized molded article obtained by semivulcanized film-forming step is additionally vulcanized in the state as it is deformed entirely and the deformation is removed, to give vulcanizate in a desired shape.
    Type: Application
    Filed: November 27, 2012
    Publication date: March 12, 2015
    Applicants: DENKI KAGAKU KOGYO KABUSHIKI KAISHA, National University Corporation Nagaoka University of Technology
    Inventors: Yoshinobu Isono, Naoki Kobayashi, Yasushi Abe
  • Publication number: 20140329102
    Abstract: An adhesive includes a polymeric latex, a penetrant selected from the group consisting of: terpenes, polylimonene, limonene, carvone, a-pinene, citral, dipentene, 1,8-cineole, eucalyptol, citronellol, geraniol, citronellene, terpinen-4-ol, borneol, camphor, guayule resin, and combinations thereof; and a reinforcing filler. The adhesive has a solids content of 35-65% and a pH of 9 to 12. Articles of manufacture, such as tires and air springs incorporate the adhesive to join rubber interfaces. A method of making the adhesive is also is provided.
    Type: Application
    Filed: December 7, 2012
    Publication date: November 6, 2014
    Inventors: Amy M. Randall, William L. Hergenrother, Sheel Agarwal, Ashley S. Hilton
  • Patent number: 8816030
    Abstract: Provided are a chloroprene rubber, a chloroprene rubber composition and the vulcanizate and formed body thereof superior in low-temperature properties. A chloroprene rubber is obtained by emulsion polymerization of raw monomers containing antiperiplanar trans-1-chlorobuta-1,3-diene and cis-1-chlorobuta-1,3-diene in a total amount of 0.5 mass % or more, 2,3-dichlorobuta-1,3-diene in an amount of 2.0 mass % or more, and the rest being chloroprene. A composition containing the chloroprene is vulcanized into a formed body.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: August 26, 2014
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Uichiro Yamagishi, Takashi Tachiyama, Takahiro Kozuka
  • Publication number: 20140099487
    Abstract: The present invention relates to a floor (10) comprising at least one floor element (12) and an adhesive composition (16), wherein the at least one floor element is adhesively connected to a surface (15) below the floor element via the adhesive composition, wherein the adhesive composition comprises a mixture of: an adhesive (18), and multiple resilient particles (20) which support the floor elements, wherein the multiple resilient particles (20) are configured to support the floor elements at a distance (22) from the surface (15), wherein the particles have different shapes and varying sizes, wherein a part of the space (24) between the surface below the floor elements and the floor elements is filled with the adhesive composition (16) and a part of the space is filled with air (26).
    Type: Application
    Filed: October 4, 2013
    Publication date: April 10, 2014
    Inventor: Shahar ALGRISI
  • Patent number: 8618190
    Abstract: A latex marking ink suitable for marking rubber articles has been developed. The ink comprises vulcanizable rubber latex, pigment, vulcanizing agent, and non-ionic stabilizer dispersed in water. Shear stability is dramatically and unexpectedly increased by the presence of the non-ionic stabilizer even though viscosity also increases.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: December 31, 2013
    Assignee: PolyOne Corporation
    Inventors: Heather E. Burik, Steve White
  • Patent number: 8586666
    Abstract: A method for producing an adhesive layer, an aqueous adhesive dispersion containing chlorinated polyolefins and further additives, having a pH from 10 to 13, being provided; said adhesive being adjusted, by the introduction of CO2, to a pH below 9.0; and an adhesive layer then being applied, wherein the quantity of CO2 to be introduced is determined and regulated by measuring the pH of the dispersion.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: November 19, 2013
    Assignee: Henkel AG & Co. KGaA
    Inventors: Juergen Lorenz, Elisabeth Koenig, Joerg Kienle, Rudolf Lauter
  • Publication number: 20130280510
    Abstract: An electroluminescent device is provided. The electroluminescent device includes an intrinsically conductive polymer layer having a thickness of from about 0.1 to about 3 microns and an elongation less than about 100%; and a phosphor layer having a thickness from about 20 microns to about 70 microns. The electroluminescent device demonstrates a loss of brightness of less than about 10% after undergoing repeated creasing, crushing, flexing, twisting, abrading, and/or stretching.
    Type: Application
    Filed: November 15, 2012
    Publication date: October 24, 2013
    Inventor: Eric A. Bruton
  • Patent number: 8530547
    Abstract: To provide a chloroprene rubber composition with which a vulcanized rubber having further improved heat resistance without impairing mechanical properties, the compression set and the tension fatigue can be obtained, and a rubber member for an automobile, a hose, a rubber molded article and a rubber vibration insulator comprising the vulcanized rubber. A chloroprene rubber composition, which comprises 100 parts by mass of at least one chloroprene rubber selected from the group consisting of a xanthogen-modified chloroprene rubber and a mercaptan-modified chloroprene rubber, and from 15 to 200 parts by mass of carbon black having a number average particle size of from 70 nm to 600 nm and having a DBP oil absorption of from 15 ml/100 g to 60 ml/100 g by oil absorption method A of JIS K6221.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: September 10, 2013
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yasushi Abe, Hiroyuki Ishiguro
  • Patent number: 8519047
    Abstract: Aqueous polymer dispersions based on polychloroprene, a process for their preparation and their use in adhesive formulations. The aqueous polymer dispersion is obtained by a) preparing an aqueous polychloroprene dispersion with a gel content of 0.1 wt. %-30 wt. %, based on the polymer, prepared by polymerization at 0° C.-70° C. of chloroprene and, optionally, ethylenically unsaturated monomers which can be copolymerized with chloroprene and b) subsequently storing the dispersion at temperatures of from 50° C.-110° C. until the gel content has risen by at least 10 wt. % to 1-60 wt. %, based on the polymer.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: August 27, 2013
    Assignee: LANXESS Deutschland GmbH
    Inventors: Rüdiger Musch, Christiane Oppenheimer-Stix, Knut Panskus, Renke Mottweiler, Norbert Schildan
  • Patent number: 8506868
    Abstract: Rubber articles such as tires, hoses and lining sheets comprising glass flakes exhibit improved fluid impermeability. Methods for the manufacture of such rubber articles are disclosed.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: August 13, 2013
    Assignee: NGF EUROPE Limited
    Inventors: David Walter Mason, Christopher Andrew Stevens
  • Patent number: 8492475
    Abstract: A subject-matter of the present invention is a rubber composition intended for the manufacture of tires or of tire semi-finished products, based on at least one isoprene elastomer, an inorganic filler as reinforcing filler and a polyfunctional organosiloxane coupling agent capable of providing the bonding between the reinforcing inorganic filler and the isoprene elastomer, comprising per molecule, grafted to its silicon atoms, on the one hand at least one hydroxyl or hydrolysable functional group allowing it to be grafted to the reinforcing inorganic filler and, on the other hand, at least one group bearing at least one azodicarbonyl functional group —CO—N?N—CO— allowing it to be grafted to the isoprene elastomer.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: July 23, 2013
    Assignee: Michelin Recherche et Technique S.A.
    Inventors: José Carlos Araujo Da Silva, Karine Longchambon, Sebastien Sterin
  • Publication number: 20130065040
    Abstract: The invention provides the use of mixtures based on aqueous dispersions of polychloroprene to produce fiber products finished therewith, a process for the production thereof and the use of these finished fiber products to produce textile-reinforced and fiber-reinforced concrete and other products based on cement.
    Type: Application
    Filed: June 11, 2012
    Publication date: March 14, 2013
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Rüdiger Musch, Horst Stepanski, Klaus Dilger, Stefan Böhm, Frank Mund
  • Publication number: 20120309893
    Abstract: Disclosed are systems and methods for producing a polymer dispersion based on polychloroprene, comprising steps of polymerizing chloroprene to polychloroprene, adding the polycholoprene dispersion to a stripper column, and removing chloroprene from the polychloroprene dispersion.
    Type: Application
    Filed: June 7, 2012
    Publication date: December 6, 2012
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Pascal DEBAYLE, Peter HOELTZENBEIN, Renke MOTTWEILER, Eberhardt MULLER, Rainer GRAFE, Christian MAHNER-WOLFARTH, Thomas-Oliver NEUNER, Mesut FIDAN, Marc LAGARDE
  • Publication number: 20120224126
    Abstract: A liquid crystal film (LCF) is provided. The exemplified LCF can be used as a reflective polarization plate, which can improve luminance and light utilization efficiency of a display device, such as an LCD, and the like.
    Type: Application
    Filed: May 17, 2012
    Publication date: September 6, 2012
    Inventors: Jun Won CHANG, Moon Soo Park, Dae Hee Lee
  • Patent number: 8227538
    Abstract: A rubber mixture with improved abrasion with improved abrasion performance, in particular for pneumatic tires, has the following composition: from 30 to 100 phr of at least one diene rubber; from 0.1 to 10 phr of at least one vulcanization accelerator selected from the group consisting of: thiazole accelerators, mercapto accelerators, sulfenamide accelerators, guanidine accelerators, thiuram accelerators, dithiocarbamate accelerators, amine accelerators, thioureas, and/or other accelerators; and a vulcanization system of sulfur comprising elemental sulfur, sulfur donor and silane between 0.25 and 0.08 moles per 100 parts by weight of the rubber elastometer, whereby the free sulfur contributes in the range of 0 to 70%, the sulfur donor contributes in the range of 5 to 30%, and the silane contributes in the range of 20 to 95%.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: July 24, 2012
    Assignee: Continental AG
    Inventors: William Michael York, Carla Recker, Katharina Herzog, Hajo Weinreich, Boris Mergell, Viktoriya Tkachenko, Norbert Mueller, Juergen Wagemann
  • Publication number: 20120138226
    Abstract: A method for producing an adhesive layer, an aqueous adhesive dispersion containing chlorinated polyolefins and further additives, having a pH from 10 to 13, being provided; said adhesive being adjusted, by the introduction of CO2, to a pH below 9.0; and an adhesive layer then being applied, wherein the quantity of CO2 to be introduced is determined and regulated by measuring the pH of the dispersion.
    Type: Application
    Filed: February 14, 2012
    Publication date: June 7, 2012
    Inventors: Juergen Lorenz, Elisabeth Koenig, Joerg Kienle, Rudolf Lauter
  • Publication number: 20120101216
    Abstract: The invention relates to a method for producing polymeric solids free of auxiliary emulators starting from polymer latices (dispersion), wherein a polymer dispersion with a starting ph-value greater than 9 is set to a ph-value of 6 to 9 by adding gaseous carbon dioxide and the polymer dispersion is subsequently coagulated by shearing and/or freezing.
    Type: Application
    Filed: March 17, 2010
    Publication date: April 26, 2012
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Dirk Achten, Peter Kueker, Jürgen Kempkes, Bianka Lorenz, Werner Obrecht, Annika Stobrawe
  • Publication number: 20120034479
    Abstract: An endless belt for an electrophotographic device having high degrees of flexibility and wear resistance in a surface portion of the elastic layer is provided. The endless belt for an electrophotographic device, includes a base layer, and an elastic layer which is formed on a surface of the base layer, by using a rubber composition including at least one rubber material and at least one inorganic filler in which the elastic layer has 40-75% by mass of a total organic component, and a product P of an indentation Young's modulus (MPa) ? and a fracture strain (%) ? that is within a range of 6000-50000.
    Type: Application
    Filed: August 5, 2011
    Publication date: February 9, 2012
    Applicant: TOKAI RUBBER INDUSTRIES, LTD.
    Inventors: Teruyoshi Kimpara, Shinichi Natsume, Shigeki Kanda, Tsukasa Fujita, Satoshi Endo
  • Publication number: 20120021155
    Abstract: The present invention generally relates to vulcanization compositions used to vulcanize elastomeric articles, where the vulcanization compositions have reduced allergenic potential as compared to elastomeric articles formed using vulcanization compositions having non-fugitive accelerators. The present invention also relates to elastomeric articles formed using the vulcanization compositions. The invention further relates to methods for making a reduced-allergenicity vulcanization composition, and to methods for using the vulcanization compositions to vulcanize elastomeric articles.
    Type: Application
    Filed: June 27, 2011
    Publication date: January 26, 2012
    Inventors: Seong Fong Chen, Wei Cheong Wong, Chii Yih Low
  • Patent number: 8097674
    Abstract: A vulcanizable rubber composition is presented that comprises an elastomer; a reinforcing filler selected from silica, carbon black, and mixtures thereof, a cure agent; and an amino alkoxy-modified silsesquioxane (AMS) comprising one or more compounds selected from the group consisting of an amino AMS, an amino/mercaptan co-AMS, an amino/blocked mercaptan co-AMS, mixtures thereof, and weak acid-neutralized solid and aqueous solutions thereof. Addition of such compounds to the rubber composition provides improved dynamic viscoelastic and mechanical properties of the vulcanized rubber compound and predict that tire components, especially tread stocks, will provide tires having improved snow traction, lower rolling resistance but equal wet traction, increased rebound, decreased hysteresis, and a general improvement in tire performance.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: January 17, 2012
    Assignee: Bridgestone Corporation
    Inventors: William L. Hergenrother, Chenchy Jeffrey Lin
  • Patent number: 8063136
    Abstract: The novel process provides latices of homo- and copolymers of chloroprene and of one or more further copolymerizable monomers at a higher reaction rate and hence in an improved space-time yield. The latices obtained have a high gel content, distinctly lower levels of by-products, in particular of chloroprene dimer, than prior art products, and are useful, if appropriate in concentrated form, for a wide variety of applications.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: November 22, 2011
    Assignee: LANXESS Deutschland GmbH
    Inventors: Lothar Reif, Christian Lente
  • Publication number: 20110237696
    Abstract: Formulations based on anionically stabilised aqueous polymer dispersions, containing polychloroprene, to which carbon dioxide (CO2) has been added, to a process for their preparation, to a device for increasing the carbon dioxide content of formulations based on anionically stabilised aqueous polymer dispersions, and to the use thereof in the production of adhesives, sealants, large-volume parts or coatings.
    Type: Application
    Filed: August 26, 2009
    Publication date: September 29, 2011
    Applicant: Bayer MaterialScience AG
    Inventors: Dirk Achten, Peter Kueker, Juergen Kempkes, Bianka Lorenz, Mathias Matner, Winfried Jeske, Jose Colinas-Martinez
  • Publication number: 20110206840
    Abstract: A powder adhesive comprising a primary rubber bonding polymer and a thermosetting component, and a method for bonding elastomers to metals employing the same. By adding a thermosetting component to a powdered adhesive, the adhesive may be applied to a substrate, sintered and thermoset to provide a sweep resistant adhesive film on the substrate, which may subsequently be bonded to an elastomer. Without a thermosetting component, the adhesive is at risk to re-melt or otherwise soften during a heated elastomer molding operation which in turn could cause the adhesive material to sweep off the substrate.
    Type: Application
    Filed: November 9, 2009
    Publication date: August 25, 2011
    Inventors: James R. Halladay, Kei-Yi Wei, Kirk J. Abbey
  • Publication number: 20110015303
    Abstract: A rubber composition, in particular intended for the manufacture of tires, based on at least a predominant elastomer, chosen from the group consisting of butyl rubbers, essentially unsaturated diene elastomers, essentially saturated diene elastomers and the mixtures of these elastomers, and a reinforcing filler, characterized in that the composition also comprises at least one inert filler chosen from silicon-based lamellar mineral fillers and a nonfunctionalized polyisobutylene oil, having a molecular weight of between 200 g/mol and 40 000 g/mol, present in a proportion of between 2 and 50 phe.
    Type: Application
    Filed: December 16, 2008
    Publication date: January 20, 2011
    Applicant: SOCIETE TECHNOLOGIE MICHELIN
    Inventors: Aurélie Joseph, Aline Riou
  • Patent number: 7863376
    Abstract: A composition is provided that includes a polymer matrix. A core having a core surface is embedded within the polymer matrix. A polymeric ligand passivates the core surface and has a moiety Y, where Y is a Diels-Alder group of a diene or dienophile. A polymeric linker has a complementary Diels-Alder group diene or dienophile to moiety Y and forms a Diels-Alder bond with the moiety Y. A composition is also provided that includes polymer matrix having a matrix surface. A core having a core surface is present on the matrix surface. A polymeric ligand passivates the core surface and has a moiety Y, where Y is Diels-Alder group of a diene or dienophile. The polymer matrix and polymeric ligand together define a matrix-ligand Flory-Huggins binary interaction function greater than 0.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: January 4, 2011
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Philip J. Costanzo, Frederick L. Beyer
  • Publication number: 20100291367
    Abstract: The present disclosure relates to a polymeric composite material comprising at least one polymer material and a quantity of an adhesive component, wherein the adhesive component comprises a reinforcement material, for use as a lining, especially in sealing leaks in pipes. A tool for the installation of the lining is also provided.
    Type: Application
    Filed: June 9, 2008
    Publication date: November 18, 2010
    Applicant: NEXTEK LIMITED
    Inventor: Edward Kosior
  • Patent number: 7799881
    Abstract: A process is described for the preparation of latices based on polychloroprene, comprising the polymerization of chloroprene in the presence of a first latex essentially consisting of polymeric particles produced in a first polymerization of a composition of monomers comprising (a) alpha-, beta-unsaturated carboxylic acids and/or derivatives thereof, (b) vinyl aromatic compounds, (c) conjugated dienes; said first latex having a content of alpha-, beta-unsaturated carboxylic acids, expressed as parts of alpha-, beta-unsaturated carboxylic acids per 100 grams of polymeric particles, ranging from 1 to 15%, thus obtaining a final latex, the solid particles of said final latex having an quantity of chloroprene ranging from 50 to 95% by weight, preferably from 80 to 95% by weight.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: September 21, 2010
    Assignee: Polimeri Europa S.p.A.
    Inventors: Romano Lima, Augusto Fabbri
  • Patent number: 7795356
    Abstract: A rubber composition containing 100 parts by weight of a diene-based rubber, 20 to 120 parts by weight of silica, 3 to 15% by weight, based upon the weight of silica, of a sulfur-containing silane coupling agent and (A) 1,5-diazabicyclo[4,3,0]nonene-5 (DBN) having the formula (I): and/or a salt thereof or (B) 0.1 to 3.0 parts by weight of a compound having a piperidine skeleton having the formula (II) or a salt thereof and/or formula (III): wherein n indicates 3 or 5, R1 indicates CH or N and R2 indicates H or OH when R1 is CH, or H when R1 is N, and a melamine derivative of formula (IV): wherein R3 is a methoxymethyl group (—CH2OCH3) or methylol group (—CH2OH), the number of methoxymethyl groups is 3 to 6, and the number of methylol groups is 0 to 3, and/or polymer or copolymer resins of the same and a pneumatic tire using the same.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: September 14, 2010
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Satoshi Mihara, Yoshihiro Kameda
  • Publication number: 20100143621
    Abstract: Rubber articles such as tyres, hoses and lining sheets comprising glass flakes exhibit improved fluid impermeability. Methods for the manufacture of such rubber articles are disclosed.
    Type: Application
    Filed: September 28, 2007
    Publication date: June 10, 2010
    Applicant: NGF EUROPE LIMITED
    Inventors: David Walter Mason, Christopher Andrew Stevens
  • Publication number: 20100076149
    Abstract: A nonionic polychloroprene latex composition employing a polyvinyl alcohol as an emulsifier/dispersant has favorable chemical and mechanical stability but has a high viscosity, and therefore it has such drawbacks that its coating method is limited, and it is hardly made to have a high solid content. A polychloroprene latex composition which has a low viscosity and which can be made to have a high solid content, can be obtained by emulsion polymerization of chloroprene alone or chloroprene and a monomer copolymerizable with chloroprene in the presence of a polyvinyl alcohol and a nonionic emulsifier.
    Type: Application
    Filed: November 24, 2009
    Publication date: March 25, 2010
    Applicant: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Kosuke Watanabe, Motohiro Ose
  • Publication number: 20090306267
    Abstract: A rubber mixture with improved abrasion with improved abrasion performance, in particular for pneumatic tires, has the following composition: from 30 to 100 phr of at least one diene rubber; from 0.1 to 10 phr of at least one vulcanization accelerator selected from the group consisting of: thiazole accelerators, mercapto accelerators, sulfenamide accelerators, guanidine accelerators, thiuram accelerators, dithiocarbamate accelerators, amine accelerators, thioureas, and/or other accelerators; and a vulcanization system of sulfur comprising elemental sulfur, sulfur donor and silane between 0.25 and 0.08 moles per 100 parts by weight of the rubber elastometer, whereby the free sulfur contributes in the range of 0 to 70%, the sulfur donor contributes in the range of 5 to 30%, and the silane contributes in the range of 20 to 95%.
    Type: Application
    Filed: June 5, 2008
    Publication date: December 10, 2009
    Inventors: William Michael York, Carla Recker, Katharina Herzog, Hajo Weinreich, Boris Mergell, Viktoriya Tkachenko, Norbert Mueller, Juergen Wagemann
  • Publication number: 20090234064
    Abstract: An aqueous elastomer dispersion includes a dispersed phase and an aqueous phase. The dispersed phase includes an elastomer including curable aliphatic conjugated-diene elastomers, such as polyisoprene, and a minor amount of at least one additive. The aqueous phase includes water and other optional components in either a soluble state or a dispersion state. The aqueous elastomer dispersion may be prepared by dissolving an elastomer, such as rubber, and additives in a solvent mixture and then converting the resulting solution into an aqueous emulsion. The aqueous emulsion is concentrated and the solvent is stripped from it to yield a dilute latex. The dilute latex that is obtained is concentrated again. Articles made from the aqueous elastomer dispersion include medical gloves, condoms, probe covers, dental dams, finger cots, catheters and the like.
    Type: Application
    Filed: March 13, 2009
    Publication date: September 17, 2009
    Applicant: Allegiance Corporation
    Inventors: Shiping WANG, Seong Fong Chen, Ida Berger, Yun-Siung Tony Yeh, Wei Cheong Wong
  • Publication number: 20090234057
    Abstract: The use of a rubber compound wherein the mechanical properties thereof are improved. In particular, the rubber compound has an increased elongation at rupture and/or increased tensile strength and/or increased tear strength and also a reduced compression set (DVR). The rubber compound includes a rubber having at least two functional groups which can be cross-linked by hydrosilylation, a cross-linking agent including hydrosiloxane or a hydrosiloxane derivative or a mixture of several hydrosiloxanes or derivatives, which include at least two SiH-groups per molecule in the centre, a hydrosilylation catalyst system, at least one filling material and a coagent which can be cross-linked by hydrosilylation, for use as a material in the insertion area of the fuel cells.
    Type: Application
    Filed: September 16, 2006
    Publication date: September 17, 2009
    Applicant: Carl Freudenberg KG
    Inventors: Matthias Adler, Ruth Bieringer, Michael Viol
  • Publication number: 20090053949
    Abstract: The invention relates to low-viscosity, low-monomer aqueous polymer dispersions based on polychloroprene, and a process for the preparation thereof and the use thereof as a contact adhesive.
    Type: Application
    Filed: August 19, 2008
    Publication date: February 26, 2009
    Applicant: Bayer MaterialScience AG
    Inventors: Dirk Achten, Peter Kueker, Juergen Kempkes, Bianka Lorenz, Peter Reichert, Winfried Jeske, Jose Colinas-Martinez
  • Patent number: 7488770
    Abstract: A polychloroprene latex is provided with excellent adhesive strength, particularly for an EVA material, by dissolving an ethylene/vinyl acetate copolymer in a chloroprene monomer alone or in a mixture of a chloroprene monomer and a monomer copolymerizable with chloroprene to prepare a monomer solution, which is emulsified and dispersed in an aqueous solution containing an emulsifier and/or a dispersant, followed by polymerization to produce a polychloroprene latex. The obtained polychloroprene latex can provide improved adhesive strength particularly for an EVA material.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: February 10, 2009
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Kosuke Watanabe, Motohiro Ose
  • Patent number: 7485677
    Abstract: The present invention is a blend of an halogenated elastomer and a clay, desirably an exfoliated clay, to form a nanocomposite suitable for an air barrier. In one embodiment, the halogenated elastomer is a polymer comprising C4 to C7 isoolefin derived units, a para-methylstyrene derived units, and para-(halomethylstyrene) derived units. In another embodiment, the halogenated elastomer is a butyl-type rubber. The clay may or may not have an additional exfoliating treatment present prior to blending with the interpolymer. The interpolymer/clay mixture forms a distinct phase in the nanocomposite blend of the invention. The blend of the invention has improved air barrier properties and is suitable as an innerliner or innertube.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: February 3, 2009
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Anthony Jay Dias, Andy Haishung Tsou, David Yen-Lung Chung, Weiqing Weng, Caiguo Gong
  • Publication number: 20080311415
    Abstract: The present invention concerns the use, in the surface treatment of waterproofed wood, of an aqueous dispersion comprising at least one latex obtained by emulsion polymerization of a mixture of monomers comprising at least one acrylic monomer B comprising at least one ureido function.
    Type: Application
    Filed: August 30, 2006
    Publication date: December 18, 2008
    Applicant: LAPEYRE
    Inventors: Jean-Christophe Castaing, William Bett, Jean-Noel Bousseau
  • Publication number: 20080076855
    Abstract: The novel process provides latices of homo- and copolymers of chloroprene and of one or more further copolymerizable monomers at a higher reaction rate and hence in an improved space-time yield. The latices obtained have a high gel content, distinctly lower levels of by-products, in particular of chloroprene dimer, than prior art products, and are useful, if appropriate in concentrated form, for a wide variety of applications.
    Type: Application
    Filed: August 29, 2007
    Publication date: March 27, 2008
    Inventors: Lothar Reif, Christian Lente
  • Patent number: 7108033
    Abstract: This invention discloses a rubbery polymer which is comprised of repeat units that are derived from (1) at least one conjugated diolefin monomer, and (2) 0.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: September 19, 2006
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Jake Alexandre Dalphond, Steven Kristofer Henning, Stephan Rodewald
  • Patent number: 7098268
    Abstract: This invention relates to a resin composition useful as a vibration-damping agent and the like. The resin composition is formulated by adding 1 wt % or more of styrenated phenol obtained by the reaction of a phenol with styrene to a polycyclic aromatic oligomer obtained by condensing a polycyclic aromatic compound containing 2 to 3 rings and formaldehyde. The polycyclic aromatic oligomer is obtained by the reaction of a polycyclic aromatic compound with formaldehyde and, if necessary, further with a phenol in the presence of an acid catalyst and has a number average molecular weight of 300–1000. The styrenated phenol is obtained by the reaction of 1 mole of a phenol with 1–2.5 moles of styrene in the presence of an acid catalyst.
    Type: Grant
    Filed: August 1, 2002
    Date of Patent: August 29, 2006
    Assignee: Nippon Steel Chemical Co., Ltd.
    Inventors: Toshihide Senzaki, Takahiro Imamura
  • Patent number: 7067577
    Abstract: The present invention relates to a resin composition comprising a resin and apatite, wherein referring to the particulate form of said apatite present in the resin composition thus obtained, the apatite is present in a particulate form having an average diameter or average thickness (d) of not greater than 100 nm and an average aspect ratio (L/D) of not smaller than 5 as defined by the ratio of the average length (L) to said average diameter or average thickness (d).
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: June 27, 2006
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Masaaki Aramaki, Kenya Sonobe
  • Patent number: 7030184
    Abstract: The mechanical property known as “strength at young ages” of cement matrices or hydraulic binders may be significantly improved by adding dispersions of mineral fillers and dispersing agents. The dispersing agents of the present invention comprise copolymers prepared by the radical copolymerization of at least one alkoxy-, aryloxy-, alkylaryloxy- or arylalkyloxy-polyalkylene glycol ethylenic urethane monomer with at least one anionic monomer and at least one non-ionic monomer, and optionally, an alkoxy-, aryloxy-, alkylaryloxy- or arylalkyloxy-polyalkylene glycol acrylate or methacrylate or an alkyloxy-, aryloxy-, alkylaryloxy- or arylalkyloxy-polyalkylene glycol allyl ether, and/or a crosslinking agent.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: April 18, 2006
    Assignee: COATEX, S.A.S.
    Inventors: Pascal Gonnon, Yves Kensicher, Christian Jacquemet
  • Patent number: 6818692
    Abstract: This invention pertains to rubber cement compositions containing a rubber elastomer, a tackifier, and an organic solvent that is not a hazardous air pollutant (HAP). This invention also includes the method of making this rubber cement composition and of using this adhesive to bond to surfaces together.
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: November 16, 2004
    Assignee: W. W. Henry Company
    Inventors: John W. Bulluck, Holly McKee