Mercaptan Or Mercaptide Patents (Class 525/350)
  • Patent number: 9249285
    Abstract: The present invention relates to a silica-containing rubber mixture produced from at least one rubber, one sulphur-containing alkoxysilane, one crosslinking agent, one filler, and optionally further rubber auxiliary products, wherein this mixture comprises from 0.1 to 15 parts by weight, based on 100 parts by weight of rubber used, of a polysulphide additive of the formula (I) A-S—(S)x—S—B??(I) where x is 0, 1, 2, 3 or 4, and A and B, independently of one another, are an optionally derivatised carboxyalkyl, carboxyaryl or hydroxyaryl group, and comprises from 0.1 to 15 parts by weight, based on 100 parts by weight of rubber used, of 1,6 -bis(N,N-dibenzylthiocarbamoyldithio)hexane (CAS No.: 151900-44-6).
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: February 2, 2016
    Assignee: LANXESS DEUTSCHLAND GMBH
    Inventors: Ulrich Feldhues, Heinz Unterberg, Hermann-Josef Weidenhaupt, Melanie Wiedemeier-Jarad
  • Publication number: 20150148495
    Abstract: Provided is a method of producing a rubber molded article, including crosslinking a rubber compound at a temperature lower than a usual crosslinking temperature (150° C. or more). The method includes a crosslinking step of crosslinking a rubber compound at a temperature of 100° C. or less, the rubber compound having a nitrile structure represented by the following formula (I) and an olefin structure represented by the following formula (II), in a rubber composition containing the rubber compound and a thiol compound having at least two thiol groups in a molecule thereof: provided that R in the formula (II) represents a divalent organic group having 4 or more carbon atoms and having an unsaturated bond represented by —C?C— in a structure thereof.
    Type: Application
    Filed: April 25, 2013
    Publication date: May 28, 2015
    Inventors: Tomokazu Watanabe, Nahoko Kitajima, Tomoya Shimizu
  • Publication number: 20150112028
    Abstract: Methods for the preparation of mono- and bis-end-functionalized ?-conjugated polymers. In the methods, chalcogens are selectively installed at the polymer terminus or termini.
    Type: Application
    Filed: October 20, 2014
    Publication date: April 23, 2015
    Applicant: University of Washington through its Center for Commercialization
    Inventors: Christine Keiko Luscombe, Ken Okamoto
  • Patent number: 8987386
    Abstract: A method of producing a polymeric compound containing a structural unit that decomposes upon exposure to generate an acid, the method including: synthesizing a precursor polymer by polymerizing a water-soluble monomer having an anionic group, washing the precursor polymer with water, and subsequently subjecting the precursor polymer to a salt exchange with an organic cation. Also, a polymeric compound produced using the method of producing a polymeric compound, and a method of forming a resist pattern using the resist composition.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: March 24, 2015
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Yoshiyuki Utsumi, Takahiro Dazai, Masatoshi Arai, Takaaki Kaiho
  • Patent number: 8962728
    Abstract: The present invention relates to weathering-resistant, colored moldings made of poly(alkyl)(meth)acrylate with improved gloss and resistance to mechanical influences acting on the surface of the molding, in particular with improved wipe resistance and improved scratch resistance, and also to molding compositions for producing the same.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: February 24, 2015
    Assignee: Evonik Röhm GmbH
    Inventors: Victor Khrenov, Andreas Mischlich, Ursula Golchert, Stefan Nau, Anton Halblaender, Klaus Schultes, Marc Poth, Antonios Manis, Kathrin Lehmann, Zhen Zhu
  • Patent number: 8962730
    Abstract: The present invention is directed to a self-healing rubber composition comprising a functionalized elastomer comprising: a polymeric backbone chain derived from a monomer comprising at least one conjugated diene monomer and optionally at least one vinyl aromatic monomer; and a functional group bonded to the backbone chain, the functional group comprising a multidentate ligand capable of complexing with a metal ion; and a partitioned metal ion. The invention is further directed to a pneumatic tire comprising the self-healing rubber composition.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: February 24, 2015
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Ralf Mruk, Christian Jean-Marie Kaes, Robert Fokko Roskamp
  • Patent number: 8957160
    Abstract: A sulfonic acid anion-containing polymer having a triarylsulfonium cation is prepared by (1) preparing a sulfonic acid anion-containing polymer having an ammonium or metal cation not bound thereto, (2) purifying the polymer by water washing or crystallization, and (3) then reacting the polymer with a triarylsulfonium salt. A resist composition comprising the inventive polymer is effective for controlling acid diffusion since the sulfonium salt is bound to the polymer backbone.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: February 17, 2015
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Masaki Ohashi, Tomohiro Kobayashi, Masayoshi Sagehashi
  • Patent number: 8946349
    Abstract: A rubber composition that can be used in applications such as automotive tires and can improve the fuel efficiency performance and driving stability of automobiles and the like, a method for producing a rubber composition, and a tire using the same are provided.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: February 3, 2015
    Assignee: JSR Corporation
    Inventors: Koji Okada, Ryoji Tanaka, Yoshiyuki Udagawa
  • Patent number: 8883930
    Abstract: A process for preparing graft polymers from a polymer is based on conjugated diene units and a graft which is a thiol derivative. The process has an absence of solvent and any radical initiator. The graft polymer can be advantageously be used as additive for a bitumen/polymer composition and in particular permits thermoreversible cross-linking.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: November 11, 2014
    Assignees: Total Marketing Services, Centre National de la Recherche Scientifique (CNRS)
    Inventors: Sylvia Harders, Romuald Botel, Ilias Iliopoulos, Ludwik Leibler, Ornella Annabelle Zovi
  • Patent number: 8865841
    Abstract: The invention provides a rubber composition comprising a styrene-butadiene copolymer and having improved compatibility with a thiol-based crosslinking agent and also having increased curability. As means for solving the problems, the inventive thiol-containing liquid rubber composition comprises (A) a styrene-butadiene copolymer which is liquid at 25° C. and (B) a polythiol derived from mercaptocarboxylic acid, wherein the styrene-butadiene copolymer (A) desirably has a bound styrene content of 20 to 90% by mass.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: October 21, 2014
    Assignee: Bridgestone Corporation
    Inventors: Hajime Kitano, Shuyou Akama
  • Patent number: 8859687
    Abstract: The present invention is directed to a functionalized elastomer comprising: a polymeric backbone chain derived from a monomer comprising at least one conjugated diene monomer and optionally at least one vinyl aromatic monomer; and a functional group bonded to the backbone chain, the functional group comprising a multidentate ligand capable of complexing with a metal ion.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: October 14, 2014
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Ralf Mruk, Frank Schmitz, Robert Fokko Roskamp, Alexandra Hermann, Rudolf Wilhelm Zentel
  • Publication number: 20140216649
    Abstract: The present invention relates to thiol-ene curing compositions, which cure upon exposure to ultraviolet (UV) light and/or heat. The compositions include components having alkenyl (or “ene”) functionality and components having thiol functionality, which undergo thiol-ene curing. The compositions also include a cure system. More specifically, in some embodiments, the curable compositions include a vinyl polymer bearing alkenyl or thiol terminal functional group(s) and a cross-linking agent having the opposing functionality, i.e., thiol cross-linking agents with alkenyl-terminated vinyl polymers and vinyl cross-linking agents with thiol-terminated vinyl polymers. Also provided are methods of making and using the compositions, such as for sealants for in-place gasketing applications.
    Type: Application
    Filed: April 3, 2008
    Publication date: August 7, 2014
    Applicants: Henkel Corporation
    Inventors: John G. Woods, Richard O. Angus, JR., Joel D. Schall
  • Patent number: 8728326
    Abstract: The invention relates to a polymer comprising structural units of formula and formula wherein R1, R2, R5 and R6 are independently hydrogen, a methyl group, or —COOH, only one of R1 and R2 or R5 and R6 is —COOH; R3 and R7 are independently hydrogen, or a methyl group; R4 is —COOH, —CONH2 or —OH, when R4 is —OH, R1, R2 and R3 are respectively hydrogen; and R8 is —COO, —CONH, or —O—, when R8 is —O—, R5, R6 and R7 are respectively hydrogen. Methods for preparing and using the polymer are also described herein.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: May 20, 2014
    Assignee: General Electric Company
    Inventors: Wenqing Peng, Yangang Liang, Shengxia Liu, Larry Neil Lewis, Robert James Perry, Stephen Robert Vasconcellos, Su Lu, Guixi Zhang
  • Patent number: 8722810
    Abstract: A modified conjugated diene copolymer and a preparing method for the same are provided. The method comprising a polymerization step for polymerizing conjugated diene monomers to form a conjugated diene polymer; and a modifying step for reacting the conjugated diene polymer with a modifier to form a modified conjugated diene polymer. The modifier includes a polythiol ester compound, a polythiol alkane compound or a combination thereof, the polythiol ester compound has a chemical formula (I): Ra-(O—C(?O)Rb-SH)x??(I). The polythiol alkane compound has a chemical formula (II): HS—(CH2)m—(Rd)nCH2SH??(II).
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: May 13, 2014
    Assignee: Chi Mei Corporation
    Inventors: Kuei-Lun Cheng, Chih-Cheng Lee, Kuan-Lin Hsieh
  • Patent number: 8642705
    Abstract: A process for producing a conjugated diene-based polymer which comprises, in the first modification, modifying a conjugated diene-based polymer having active chain ends, which is obtained by polymerizing a diene-based monomer singly or with other monomers and has a content of a cis-1,4 unit of 75% by mole or greater in the conjugated diene portion of the main chain, by reacting the active chain ends with a hydrocarbyloxysilane compound and reacting the modified polymer with a specific compound such as a hydrocarbyloxysilane compound, and a rubber composition containing the polymer modified in accordance with the above process and, preferably, 10 to 100 parts by weight of silica and/or carbon black per 100 parts by weight of the rubber component containing the modified polymer, are provided. The rubber composition containing silica and/or carbon black exhibits improved fracture properties, abrasion resistance, low heat buildup property and excellent workability.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: February 4, 2014
    Assignee: Bridgestone Corporation
    Inventors: Youichi Ozawa, Hajime Kondou, Noriko Endou
  • Publication number: 20140030537
    Abstract: The present invention provides an adhesive composition that may improve both adhesiveness to a film layer and adhesiveness to a rubber layer, and an adhesion method using the same, as well as a laminate and a tire. The adhesive composition according to the present invention includes: a rubber component containing a diene-based elastomer; and a compound having a polar functional group in its molecule.
    Type: Application
    Filed: April 12, 2012
    Publication date: January 30, 2014
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Takuya Ogasawara, Ryuji Nakagawa, Kotaro Hayakawa, Hideyuki Chiashi
  • Publication number: 20130345367
    Abstract: The present invention relates to novel graft copolymers of functionalized poly(isoolefin-co-conjugated diolefin, and a process of preparing such graft copolymers. The present invention also relates to a method of preparing functionalized copolymers of isoolefins and conjugated diolefins.
    Type: Application
    Filed: August 11, 2011
    Publication date: December 26, 2013
    Applicants: UNIVERSITY OF WESTERN ONTARIO, LANXESS INC.
    Inventors: Goran Stojcevic, Lorenzo P. Ferrari, Dana K. Adkinson, Elizabeth R. Gillies, Collin V. Bonduelle, Solmaz Karamdoust
  • Publication number: 20130331525
    Abstract: Provided herein are methods for preparing vinylidene-terminated polyolefins. Further provided herein are sulfide-terminated polyolefins.
    Type: Application
    Filed: August 9, 2013
    Publication date: December 12, 2013
    Applicant: Chevron Oronite Company LLC
    Inventor: Casey D. Stokes
  • Publication number: 20130296493
    Abstract: The present invention provides a modified natural rubber that offers higher efficiency of graft polymerization or attachment of a polar group-containing compounds, and that possesses excellent low loss factor, wear resistance and fracture resistance when used as a rubber composition, a rubber composition using the modified natural rubber and a tire using the rubber composition. In the present invention, a polar group-containing compound is graft polymerized or attached under mechanical shear force to a natural rubber raw material having a nitrogen content of 0.4 mass % or less.
    Type: Application
    Filed: May 1, 2013
    Publication date: November 7, 2013
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Taku YAMAMOTO, Haruki Minojima, Takeshi Kasai
  • Patent number: 8552120
    Abstract: The present invention relates to a process of preparing 1,4-trans polybutadiene grafted with an aromatic organosulfur compound, the process comprising (a) preparing 1,4-trans polybutadiene by polymerizing 1,3-butadiene or butadiene derivatives in a nonpolar solvent in the presence of a particular catalyst, and (b) preparing the 1,4-trans polybutadiene grafted with an aromatic organosulfur compound by reacting the trans polybutadiene with an aromatic organosulfur compound. The organosulfur molecule in the molecular chain minimizes ultra high molecular weight fraction and narrows the molecular weight distribution, thereby enabling this polymer to show improved processability and tensile properties.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: October 8, 2013
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Gwang Hoon Kwag, Hoochae Kim, Seung Hwon Lee, Hwieon Park, Hyung Kyu Choi
  • Patent number: 8541510
    Abstract: This invention relates to a thermosetting composition having an excellent thermosetting property, and more particularly to a thermosetting composition comprising (A) a diene-based polymer having two or more unsaturated bonds, (B) a polythiol derived from a mercaptocarboxylic acid, and (c) a thermally radical-generating agent.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: September 24, 2013
    Assignee: Bridgestone Corporation
    Inventors: Hajime Kitano, Shuyou Akama
  • Publication number: 20130245203
    Abstract: Disclosed is a method for viscosity breaking of a polypropylene polymer, a polypropylene copolymer or a polypropylene polymer blend, which process comprises adding a chain transfer agent and an initiator to a polypropylene polymer, polypropylene copolymer or polypropylene polymer blend and heating the resultant composition. The chain transfer agent has a Cs value of greater than or equal to about 0.04 as measured in ethylene polymerization at 130° C. The initiator is for example an organic or inorganic peroxide, a carbon based radical generator, a bis azo compound, a stable nitroxyl compound, a sterically hindered NO-acyl compound or a sterically hindered alkoxyamine compound.
    Type: Application
    Filed: May 14, 2013
    Publication date: September 19, 2013
    Applicant: BASF SE
    Inventors: David E. Horst, Michael Roth, Peter Nesvadba
  • Publication number: 20130237646
    Abstract: A graft polymer PG includes a polymer backbone P and at least one side graft G linked to the polymer backbone, the graft G having the general formula (1): in which R1 and R2 represent, separately from one another, straight or branched, unsaturated or saturated hydrocarbon groups, such that the total number of carbon atoms in groups R1 and R2 is between 2 and 110; X represents an amide, amino-acid, urea or urethane function, the graft G being linked to the polymer backbone P via the sulphur atom. The graft polymer PG is a polymer that allows thermoreversible cross-linking and can be used in many fields such as coatings, paints, thermoplastics, adhesives, lubricants, fuels, inks, cements, construction materials, rubbers and bitumens. The graft polymer PG can be used in particular for thermoreversibly cross-linking bitumen/polymer compositions and thus for reducing coating, spreading and/or compaction temperatures during the production of bituminous coated materials.
    Type: Application
    Filed: November 8, 2011
    Publication date: September 12, 2013
    Applicants: Centre National De La Recherche Scientifique (CNRS ), Total Raffinage Marketing
    Inventors: Sylvia Harders, Ludwik Leibler, Ilias Iliopoulos, Julie Prevost
  • Patent number: 8519059
    Abstract: The invention provides articles obtained from curing a composition consisting of a polymercapto crosslinking agent, a vulcanization accelerator, an inorganic base, a nitrogen containing chelating agent, wherein the nitrogen containing chelating agent is selected from the group consisting of 1,10-phenanthroline and 2,2-bipyridyl, and polyethylenimine; and a halogenated elastomer; wherein said nitrogen containing chelating agent is soluble in said halogenated elastomer.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: August 27, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: Raymond L. Laakso, Jr., Gary R. Marchand, Sandra Watson
  • Patent number: 8487018
    Abstract: Heavy metal-free compostable polymers, composites and articles anaerobically biodegrade in landfills in a relatively short time. Heavy metal-free composite polymeric articles and sheets such as indoor or outdoor signs, billboards, banners, images, protective barriers, backdrops and wall coverings have very useful service durations and yet are landfill biodegradable.
    Type: Grant
    Filed: February 21, 2011
    Date of Patent: July 16, 2013
    Assignee: Biotech Products, LLC
    Inventor: Richard F. Grossman
  • Publication number: 20130172492
    Abstract: A modified conjugated diene copolymer and a preparing method for the same are provided. The method comprising a polymerization step for polymerizing conjugated diene monomers to form a conjugated diene polymer; and a modifying step for reacting the conjugated diene polymer with a modifier to form a modified conjugated diene polymer. The modifier includes a polythiol ester compound, a polythiol alkane compound or a combination thereof, the polythiol ester compound has a chemical formula (I): (Ra)(OC(?O)Rb-SH)x??(I). The polythiol alkane compound has a chemical formula (II): HS—(CH2)m—(Rd)nCH2SH??(II).
    Type: Application
    Filed: December 5, 2012
    Publication date: July 4, 2013
    Applicant: Chi Mei Corporation
    Inventor: Chi Mei Corporation
  • Publication number: 20130160912
    Abstract: The present invention is directed to a rubber composition comprising: a functionalized elastomer comprising a polymeric backbone chain derived from a monomer comprising at least one conjugated diene monomer and optionally at least one vinyl aromatic monomer; and a functional group bonded to the backbone chain, the functional group comprising a multidentate ligand capable of complexing with a metal ion; and an encapsulated metal salt. The invention is further directed to a pneumatic runflat tire comprising a sidewall insert, the insert comprising the rubber composition.
    Type: Application
    Filed: December 21, 2011
    Publication date: June 27, 2013
    Inventors: Ralf Mruk, Frank Schmitz, Robert Fokko Roskamp, Christian Jean-Marie Kaes
  • Patent number: 8404785
    Abstract: A method for producing a modified conjugated diene polymer includes a step (A) carrying out a primary modification reaction that reacts a heterocumulene compound having two or more specific functional groups with a conjugated diene polymer having a vinyl content of below 10% and a cis-1,4-bond content of 75% or more and possessing an active end to obtain a primary-modified conjugated diene polymer, and a step (B) carrying out a secondary modification reaction that reacts an active hydrogen-containing compound that includes one or more functional groups selected from the group consisting of an amino group, an imino group, a mercapto group, and a hydroxyl group with the primary-modified conjugated diene polymer to obtain a secondary-modified conjugated diene polymer. The method can produce a modified conjugated diene polymer that exhibits low heat build-up (low fuel consumption) and excellent wear resistance.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: March 26, 2013
    Assignee: JSR Corporation
    Inventors: Ryouji Tanaka, Kouichirou Tani, Takuo Sone, Toshihiro Tadaki
  • Patent number: 8399572
    Abstract: The invention provides compositions comprising nitrogen containing chelating agents, which can be used to reduce the effects of zinc contamination on the vulcanization rates of polymercapto based cure systems for halogenated elastomers. Such chelating agents are effective at eliminating vulcanization rate inconsistencies due to zinc contamination, without inducing negative changes to the vulcanization reaction or the subsequent physical properties of the halogenated elastomer vulcanizate. The invention also provides methods of curing a halogenated elastomer using the inventive compositions, and for articles prepared from the same.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: March 19, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: Raymond L. Laakso, Jr., Gary R. Marchand, Sandra Watson
  • Patent number: 8367778
    Abstract: Process for the elimination of residual mercaptans from nitrile rubbers, comprising: a. adding a colloidal emulsion of sulfur to a nitrile latex emulsion (NBR rubber latex) containing free mercaptan and with a pH of between 7 and 14, at a temperature ranging from 30 to 120° C.; b. coagulating the nitrile latex c. washing with demineralized water and drying the NBR rubber recovered after coagulation.
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: February 5, 2013
    Assignee: Polimeri Europa S.p.A.
    Inventors: Gian Tommaso Viola, Davide De Santi, Romano Lima
  • Patent number: 8349968
    Abstract: The present invention relates to a method for radically curing an unsaturated polyester resin or vinyl ester resin composition, wherein the resin composition contains at least 10 ppm radical inhibitor; the resin composition has an acid value of from 0.001 to 300 mg KOH/g resin composition and the curing is effected in the presence of at least 5 mmol Mn/kg primary resin system and at least 10 mmol of thiol/kg primary resin system. The invention also relates to cured objects or structural parts obtained from a resin composition obtained by such a process.
    Type: Grant
    Filed: July 5, 2007
    Date of Patent: January 8, 2013
    Assignee: DSM IP Assets B.V.
    Inventors: Johan Franz Gradus Antonius Jansen, Ronald Ivo Kraeger
  • Publication number: 20120328993
    Abstract: A method of producing a polymeric compound containing a structural unit that decomposes upon exposure to generate an acid, the method including: synthesizing a precursor polymer by polymerizing a water-soluble monomer having an anionic group, washing the precursor polymer with water, and subsequently subjecting the precursor polymer to a salt exchange with an organic cation. Also, a polymeric compound produced using the method of producing a polymeric compound, and a method of forming a resist pattern using the resist composition.
    Type: Application
    Filed: June 8, 2012
    Publication date: December 27, 2012
    Applicant: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Yoshiyuki Utsumi, Takahiro Dazai, Masatoshi Arai, Takaaki Kaiho
  • Publication number: 20120292661
    Abstract: To provide a fluorinated curable resin composition which is excellent in thermal stability and thermal adhesive property. A fluorinated curable resin composition comprising a fluoropolymer (P) having a polymerizable double bond and a thiol compound (S), wherein the fluoropolymer (P) is a copolymer having repeating units derived from a fluoromonoene (a) and a fluorodiene (b) having a residual unsaturated side chain, and the content of the thiol compound (S) is from 0.01 to 1 part by mass per 100 parts by mass of the fluoropolymer (P).
    Type: Application
    Filed: August 3, 2012
    Publication date: November 22, 2012
    Applicant: Asahi Glass Company, Limited
    Inventors: Norihide SUGIYAMA, Keigo Matsuura
  • Patent number: 8314192
    Abstract: The present invention relates to a process for producing an interpenetrating polymer network structure, which comprises the steps of impregnating a polymer molding with a radical polymerizable composition containing an ethylenically unsaturated compound and a radical polymerization initiator; and polymerizing the ethylenically unsaturated compound in a swollen state of the polymer molding impregnated with the radical polymerizable composition; wherein a chain transfer agent and/or a radical polymerization inhibitor are added to the radical polymerizable composition and/or the polymer molding before impregnating the polymer molding with the radical polymerizable composition. According to the present invention, a highly uniform interpenetrating polymer network structure can be obtained.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: November 20, 2012
    Assignee: Toray Industries, Inc.
    Inventors: Norikazu Tabata, Kazuhiko Hashisaka, Masahiro Sugimura, Takuo Sakamoto, Masaki Ue, Hiroyuki Nakayama, Seiji Fukuda
  • Patent number: 8268932
    Abstract: This invention relates to the use of resin compositions for chemical anchoring, wherein the resin composition comprises at least: a. a thiol-containing component, and b. a resin containing one or more reactive moieties selected from the group of: i. non-aromatic carbon double bond moieties, and ii. epoxide moieties, and an initiator. Preferably, the resin composition further comprises a diluent, more preferably a reactive diluent. Furthermore, the present invention also relates to the use of a multi-component, preferably a 2-component system of which one component contains a thiol group(s) containing component for chemical anchoring by means of cold curing.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: September 18, 2012
    Assignee: DSM IP Assets B.V.
    Inventors: Johan Franz Gradus Antonius Jansen, Michael Alphonsus Cornelis Johannes Van Dijck, Marco Marcus Matheus Driessen
  • Patent number: 8252870
    Abstract: The instant invention is a cure system for halogenated elastomer compositions, a curable halogenated elastomer composition, and a method for curing a halogenated elastomer composition. The cure system for halogenated elastomer compositions includes a polymercapto crosslinking agent, an inorganic base, and a combination of at least two or more of (a) a nitrogen containing chelating agent; (b) a first accelerator; or (c) a second accelerator. The curable halogenated elastomer composition includes a chlorinated elastomer, and a cure system including a polymercapto crosslinking agent, an inorganic base, and a combination of at least two or more of (a) a nitrogen containing chelating agent; (b) a first accelerator; or (c) a second accelerator.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: August 28, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: Raymond L. Laakso, Jr., Gary R. Marchand
  • Patent number: 8236367
    Abstract: The method comprises chemical modification of an optionally metallized polymer surface, for example a polycarbonate surface or a polymethacryllate surface functionalized with amino groups, said surfaces being optionally metallized, by treating said polymer surface with a mercaptoalkanoic acid or the salts or derivates thereof. The surfaces obtained by said method may be used as solid supports for immobilizing biomolecules, such as nucleic acids, proteins or membranes.
    Type: Grant
    Filed: December 26, 2008
    Date of Patent: August 7, 2012
    Assignee: Universidad Politecnica de Valencia
    Inventors: María del Carmen Bañuls Polo, Francisco García Piñón, Ángel Maquieira Catalá, Rosa Puchades Pla
  • Patent number: 8227555
    Abstract: The present invention is directed to conjugates of hydrolytically stabilized maleimide-functionalized water soluble polymers and to methods for making and utilizing such polymers and their precursors.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: July 24, 2012
    Assignee: Nektar Therapeutics
    Inventors: Antoni Kozlowski, Remy F. Gross, III, Samuel P. McManus
  • Patent number: 8198378
    Abstract: The present invention relates to a preparation method of aromatic organosulfur functionalized 1,4-cis polybutadiene comprising: polymerizing 1,3-butadiene or butadiene derivative in the presence of a specific catalyst in a nonpolar solvent to prepare 1,4-cis polybutadiene; and reacting the resultant polybutadiene with an aromatic organosulfur compound. Such prepared aromatic organosulfur functionalized 1,4-cis polybutadiene is without ultrahigh molecular weight region and, thus, has narrow molecular weight distribution.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: June 12, 2012
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Gwang Hoon Kwag, Pil Sung Kim, Seung Hwon Lee, Hyung Kyu Choi, Hyun Jin Kim
  • Patent number: 8173999
    Abstract: A method is provided for modifying a poly(arylene vinylene) or poly(heteroarylene vinylene) precursor polymer having dithiocarbamate moieties by reacting it with an acid and further optionally reacting the acid-modified polymer with a nucleophillic agent. Also provided are novel polymers and copolymers bearing nucleophillic side groups which are useful as components of electronic devices, e.g. in the form of thin layers.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: May 8, 2012
    Assignees: IMEC, Universiteit Hasselt
    Inventors: Laurence Lutsen, Dirk Vanderzande, Fateme Banishoeib
  • Patent number: 8173267
    Abstract: A method is provided for modifying a poly(arylene vinylene) or poly(heteroarylene vinylene) precursor polymer having dithiocarbamate moieties by reacting it with an acid and further optionally reacting the acid-modified polymer with a nucleophilic agent. Also provided are novel polymers and copolymers bearing nucleophilic side groups which are useful as components of electronic devices, e.g. in the form of thin layers.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: May 8, 2012
    Assignees: IMEC, Universiteit Hasselt
    Inventors: Laurence Lutsen, Dirk Vandezande, Fateme Banishoeib
  • Publication number: 20120041154
    Abstract: The invention provides a rubber composition comprising a styrene-butadiene copolymer and having improved compatibility with a thiol-based crosslinking agent and also having increased curability. As means for solving the problems, the inventive thiol-containing liquid rubber composition comprises (A) a styrene-butadiene copolymer which is liquid at 25° C. and (B) a polythiol derived from mercaptocarboxylic acid, wherein the styrene-butadiene copolymer (A) desirably has a bound styrene content of 20 to 90% by mass.
    Type: Application
    Filed: April 16, 2010
    Publication date: February 16, 2012
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Hajime Kitano, Shuyou Akama
  • Patent number: 8084547
    Abstract: The invention relates to processes for the production of microgel-containing rubber mixtures, to rubber mixtures obtainable by the processes, to processes for the production of vulcanizates, and also to vulcanizates after the vulcanization process, in particular in the form of tires, parts of tires, or industrial rubber items.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: December 27, 2011
    Assignee: LANXESS Deutschland GmbH
    Inventor: Werner Obrecht
  • Patent number: 8076440
    Abstract: The invention relates to polysiloxane block copolymers of the formula A[LB(S)Q]m, where A is a polysiloxane block, L is a divalent organic linker, B is a polymer block composed of radically polymerizable monomers, S is a sulfur atom and Q is a monovalent organic radical and m is an integer from 1 to 50, to a method for their production, and to their use in cosmetics or personal care.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: December 13, 2011
    Assignee: Evonik Goldschmidt GmbH
    Inventors: Dirk Kuppert, Burghard Grüning, Brian Yang, Sven Balk, Gerd Löhden
  • Publication number: 20110278503
    Abstract: The invention relates to an amphiphilic polymer (A) comprising repeat units of the general formulae (I), (II) and (III): or salts thereof, wherein the repeat unit of general formula (I) is comprised in the amphiphilic polymer with a number of m units, the repeat unit of general formula (II) is comprised in the amphiphilic polymer with a number of o units and repeat unit of general formula (III) is comprised in the amphiphilic polymer with a number of p units, wherein each of m, o and p is an independently selected integer from about 3 to about 400 and wherein the sum of m+o+p is selected in the range from about 10 to about 10000, R1 in repeat units (I)-(III) is H or methyl, R2 in repeat unit (II) is an aliphatic moiety with a main chain of about 3 to about 30 carbon atoms and 0 to about 3 heteroatoms selected from the group N, O, S, Se and Si, and, R3 in repeat unit (III) is one of (i) an alicyclic moiety with a main chain of about 5 to about 80 carbon atoms and 0 to about 30 heteroatoms selected from the gro
    Type: Application
    Filed: October 12, 2009
    Publication date: November 17, 2011
    Applicant: Agency for Science,Technology and Research
    Inventors: Dominik Janczewski, Nikodem Tomczak, Ming-Yong Han, G. Julius Vancso
  • Publication number: 20110269913
    Abstract: The invention relates to a controlled polymerization method for producing telechelics on the basis of (meth)acrylate, which have a wide, monomodal molecular weight distribution, and to the use thereof as binders in glues or sealing materials.
    Type: Application
    Filed: October 6, 2009
    Publication date: November 3, 2011
    Applicants: Henkel Ag & Co. KGAA, EVONIK ROEHM GMBH
    Inventors: Sven Balk, Holger Kautz, Gerd Loehden, Lars Zander, Jens Lueckert, Johann Klein, Thomas Moeller, Volker Erb
  • Publication number: 20110253285
    Abstract: The present invention relates to a natural rubber that contains 200 ppm or less of phosphorus.
    Type: Application
    Filed: December 14, 2009
    Publication date: October 20, 2011
    Inventors: Naoya Ichikawa, Toshiaki Sakaki, Sumiko Miyazaki, Tomohiro Hosokawa, Ai Matsuura
  • Patent number: 8030411
    Abstract: Embodiments of the disclosed polymer composition comprise a first unsaturated polymer or polymer precursor, and an effective amount of a peptizer. The peptizer typically comprises a heteroaryl or a heterocyclic compound, other than morpholine as disclosed in assignee's prior applications. Disclosed polymer compositions are useful for making sports equipment, such as at least one layer of a golf ball, often a core. Because the compositions are useful for making golf balls, materials commonly known for making such golf balls can be used in combination with the polymer composition. A method for forming a golf ball also is disclosed. The method comprises providing disclosed compositions and then forming at least one component of a golf using the composition.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: October 4, 2011
    Assignee: Taylor Made Golf Company, Inc.
    Inventors: Hyun J. Kim, Hong G. Jeon
  • Publication number: 20110224382
    Abstract: This invention relates to a thermosetting composition having an excellent thermosetting property, and more particularly to a thermosetting composition comprising (A) a diene-based polymer having two or more unsaturated bonds, (B) a polythiol derived from a mercaptocarboxylic acid, and (c) a thermally radical-generating agent.
    Type: Application
    Filed: September 25, 2009
    Publication date: September 15, 2011
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Hajime Kitano, Shuyou Akama
  • Publication number: 20110218298
    Abstract: High molecular weight disulfide polymers are synthesized in aqueous media by exposing dithiol compounds to a mild oxidizing environment in the presence of a tertiary amine catalyst. The unique oxidizing system polymerizes monomers through the formation of sulfur-sulfur bonds between dithiol compounds. The same oxidizing system may be used to make disulfide-crosslinked gels from compounds containing multiple thiol groups. The oxidizing system is comprised of oxygen at atmospheric concentration and dilute hydrogen peroxide. A filler such as carbon black may be incorporated into the polymer or cross-linked gel during polymerization. A polydisulfide polymer is provided having a weight average molecular weight of greater than about 100,000 g/mol and a polydispersity index of about 2 or less. A tetrathiol composition results from a reaction of a diacrylate with a trithiol.
    Type: Application
    Filed: March 4, 2011
    Publication date: September 8, 2011
    Applicant: THE UNIVERSITY OF AKRON
    Inventors: Judit E. Puskas, Emily Q. Rosenthal