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| Number | Title | Issue Date |
| 8148473 | Sulfur-containing conjugated diolefin copolymer rubber, and rubber composition comprising the same Disclosed is a sulfur-containing conjugated diolefin copolymer rubber composed of a conjugated diolefin and an aromatic vinyl compound, wherein (1) the content of sulfur bound to the rubber is 0.01 mmol % or more, (2) the content of the aromatic vinyl compound polym... | 04/03/2012 |
| 8133954 | Production of vinylidene-terminated and sulfide-terminated telechelic polyolefins via quenching with disulfides Provided herein are methods for preparing vinylidene-terminated polyolefins. Further, provided herein are novel sulfide-terminated polyolefins of the formula: wherein R1 is a polyolefin group and R2 is... | 03/13/2012 |
| 8084549 | Polyorganosiloxane composition for use in unsaturated elastomer, article made therefrom, and associated method A composition is provided for use with an unsaturated elastomer. The composition may include a sulfur-functional linear polyorganosiloxane. The sulfur-functional linear polyorganosiloxane may include a chemically protected sulfur group. Under certain conditions, the... | 12/27/2011 |
| 8063155 | Curing agent which is suitable for EPDM-type rubbers The invention relates to a sulphur donor curing agent comprising a combination of between 10 and 90 wt % of a mixture of polysulphides of poly(alkyl phenol) and between 90 and 10 wt. % a compound of the formula R′NHCONHR″ were R′ and R″ are the same or diffe... | 11/22/2011 |
| 7981971 | Compounding agent for rubber vulcanization containing amino alcohol salt compound of carboxylic acid group-containing disulfide and method of production of the same and rubber composition containing the same A compounding agent for rubber vulcanization containing an amino alcohol salt of a carboxylic acid group-containing disulfide, obtained by a reaction of a dithiocarboxylic acid and an amino alcohol, having the formula (i): ... | 07/19/2011 |
| 7553912 | Composite dispersion and process for producing the same A resin comprises a resin containing a vulcanization-activating agent, or crosslinkable group-containing resin (e.g., a resin having an unsaturated bond). Moreover, a composite dispersion may be formed by a combination of a specific resin and rubber [e.g., (a) a com... | 06/30/2009 |
| 7550540 | Rubber composition and articles therefrom both comprising mercapto-functional silane The disclosure herein relates to organofunctional silanes and mixtures of organofunctional silanes possessing mercaptan and hydrocarbyl and/or heterocarbyl functionality. These silanes reduce or eliminate the generation of volatile organic compounds (VOC's) during u... | 06/23/2009 |
| 7435785 | Fluoropolymer coagulation method and composition Provided is a method of manufacturing a perhalogenated elastomer comprising using an onium compound to coagulate a latex comprising polymer particles, the polymer particles consisting essentially of interpolymerized units of one or more perhalogenated comonomer(s) a... | 10/14/2008 |
| 7432331 | Hydrolytically stable maleimide-terminated polymers The present invention is directed to hydrolytically stabilized maleimide-functionalized water soluble polymers and to methods for making and utilizing such polymers and their precursors. ... | 10/07/2008 |
| 7432330 | Hydrolytically stable maleimide-terminated polymers The present invention is directed to hydrolytically stabilized maleimide-functionalized water soluble polymers and to methods for making and utilizing such polymers and their precursors. ... | 10/07/2008 |
| 7402630 | Curing compositions for fluoropolymers A curative composition comprising a cation and an anion of the formula Anq−Qpm+, wherein m, n, p, and q are positive integers, wherein m*p=n*q, wherein Qm+ is an organo onium, and Aq− is an anion,... | 07/22/2008 |
| 7381781 | Process for the preparation of low molecular weight hydrogenated nitrile rubber The present invention relates to a process for the production of hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art in the absence of a co-(olefin). ... | 06/03/2008 |
| 7375164 | Use of metal alkanedithiols as crosslinking agents for unsaturated rubbers The present invention relates to vulcanizing agent containing metal alkanedithiols for unsaturated rubbers. ... | 05/20/2008 |
| 7339007 | Low sediment process for thermally reacting highly reactive polymers and enophiles A process for forming an ene reaction product wherein an enophile, such as maleic anhydride, is reacted with reactive polyalkene having a terminal vinylidene content of at least 30 mol. %, at high temperature in the presence of a free radical inhibitor. The polyalke... | 03/04/2008 |
| 7319123 | Use of sulfur containing initiators for anionic polymerization of monomers An initiator is presented for anionically polymerizing monomers, to provide a functional head group on the polymer. A polymer having a functional head group derived from a sulfur containing anionic initiator, and optionally as additional functional group resulting f... | 01/15/2008 |
| 7309744 | Article formed from cross-linking isotactic polymers in the presence of peroxide An article of manufacture made of an isotactic polymer, a cross-linking agent, and an accelerator. The cross-linking agent includes a peroxide and a sulfur. The peroxide has an activity ranging from about 40% to about 100%. The ratio of the accelerator to the sulfur... | 12/18/2007 |
| 7307127 | Highly sulfonated block copolymer hydrogels and uses thereof A block copolymer composition AB is provided that has pendent groups —RZ extending from the A copolymer on at least 70 mol % of the A monomers, where R and Z are each an ionic species. The composition is included in a semipermeable membrane for use in a direct met... | 12/11/2007 |
| 7288602 | Silica filled multi-viscoelastic response rubber The present invention relates to silica filled multi-viscoelastic response rubber which is thermomechanically mixed with an organosilicon compound during the non-productive mix stage and zinc oxide is added during the productive stage of mixing. ... | 10/30/2007 |
| 7288599 | Oligomers and polymers containing sulfinate groups, and method for producing the same The invention relates to polymers obtained by S-alkylation of sulfinated polymers with alkylation agents, and AB-cross-linked polymers obtained by reacting polymers containing alkylation groups with low-molecular sulfinates, under S-alkylation, or AB-cross-linked po... | 10/30/2007 |
| 7279533 | Polar-group-containing cyclized rubber and process for producing same A main object of the invention is to provide a polar-group-containing cyclized rubber making it possible to improve remarkable the adhesiveness between paint and a molded product made of a nonpolar polymer such as polypropylene or polyethylene, and a process for pro... | 10/09/2007 |
| 7273908 | Chlorosulphonated ethylene-α-olefin copolymer and method for producing the same A chlorosulphonated ethylene-α-olefin copolymer having a chlorine content of 0.5-20% by weight and a glass transition temperature in differential scanning calorimetry (DSC) of −50° C. or lower and being crystalline. The chlorosulphonated ethylene-α-olefin copol... | 09/25/2007 |
| 7262244 | Polymer composites comprising low molecular weight nitrile rubber The present invention relates to polymer composites comprising at least one, optionally hydrogenated, nitrile rubber polymer having a Mooney viscosity (ML 1+4 @ 100° C.) below 30 at least one filler and optionally at least one cross-linking agent, a process for pre... | 08/28/2007 |
| 7262254 | Tire with low volatile alcohol emission rubber tread with compositional limitations The invention relates to a tire having a tread of a rubber composition with compositional limitations containing minimal, if any, of in situ formed volatile alcohol byproduct. The tread component rubber composition contains a combination or pre-hydrophobated silica ... | 08/28/2007 |
| 7241844 | Method for cross-linking isotactic polymers in the presence of peroxide A method for making isotactic polymer using a cross-linking agent entails introducing the cross-linking agent to a polymer and an accelerator. The cross-linking agent includes a peroxide and a sulfur. The peroxide has an activity ranging from about 40% to about 100%... | 07/10/2007 |
| 7241843 | Rubber composition for tread A rubber composition for a tread optimizing a vulcanization speed in a vulcanization step and, further, improving heat aging resistance is provided. A rubber composition for a tread comprising 20 to 90 parts by weight of silica, 0.5 to 2 parts by weigh... | 07/10/2007 |
| 7241831 | Elastomeric compositions The present invention includes compositions suitable for air barriers such as innerliners where adhesion to tire carcass materials (e.g., SBR) and flexibility are desirable, as well as low air permeability. The invention includes a tire innerliner made by combining ... | 07/10/2007 |
| 7235599 | Rubber composition and racing tire having tread comprising thereof There is provided a racing tire improving grip performance, processability and rubber strength at a high temperature in highly good balance and a rubber composition capable of producing a tread having thereof. A rubber composition comprising 70 to 150 parts by weigh... | 06/26/2007 |
| 7235587 | Diesters containing two crylene or fluorene moieties, sunscreen compositions containing the same, and methods of photostabilizing a sunscreen compositions containing the same Diesters that include one or more of a crylene and/or a fluorene moiety, and sunscreen compositions including a mixture of a photoactive compound and one or more of a diester that includes one or more of a crylene and/or a fluorene moiety are described herein. Also ... | 06/26/2007 |
| 7235601 | Hydrogenated nitrile rubber compositions with improved processability The present invention relates to polymer composites containing at least one, optionally hydrogenated, nitrile rubber polymer having a Mooney viscosity (ML 1+4 @ 100° C.) in the range of from 50–30 at least one filler and optionally at least one cross-linking agen... | 06/26/2007 |
| 7169848 | Block copolymers and method for making same The present invention is a novel block copolymer containing a controlled distribution copolymer block of a conjugated diene and a mono alkenyl arene, where the controlled distribution copolymer block has terminal regions that are rich in conjugated diene units and a... | 01/30/2007 |
| 7160955 | Sulfoxides or sulfones grafted onto polymers Polymers grafted with a compound of formula I, formula (I) wherein the general symbols are as defined in claim 1, have outstanding stability against oxidative, thermal, dynamic, light-induced and/or ozone-induced degradation [R1—SOm... | 01/09/2007 |
| 7138462 | Functionalized polymers for binding to solutes in aqueous solutions A functionalized polymer for binding a dissolved molecule in an aqueous solution is presented. The polymer has a backbone polymer to which one or more functional groups are covalently linked. The backbone polymer can be such polymers as polyethylenimine, polyvinylam... | 11/21/2006 |
| 7135515 | Use of dialkyl polysulfides for mastication of natural and synthetic rubbers The present invention relates to the invention of a masticating agent for the mastication of natural and synthetic rubbers, wherein the masticating agent is a dialkyl polysulfide, which is toxicologically acceptable and has very good masticating properties. ... | 11/14/2006 |
| 7132482 | Method for vulcanizing caoutchouc or latex by applying a mixture of sulfur and a complexing agent The invention relates to a method for vulcanizing caoutchouc or latex by adding a mixture M which contains a component a) from a1) 20 to 96% by weight of sulfur, a2) 4 to 80% by weight of a complexing agent, and optionally other additives b) to caoutchouc or latex a... | 11/07/2006 |
| 7119151 | Antimicrobial agent and production process thereof An antimicrobial agent utilizes a resin having acrylonitrile and styrene and/or a conjugated diene as units. The antimicrobial agent includes a metal-salt-containing copolymer, and the metal-salt-containing copolymer is obtained by treating a copolymer containing ac... | 10/10/2006 |
| 7091268 | Fluoroelastomer composition comprising a mineral oil The present invention provides the use of a mineral oil in a fluoroelastomer composition comprising a fluoroelastomer to improve the flow of said composition during processing to form an article therefrom and/or to improve the release from a mold of a vulcanized art... | 08/15/2006 |
| 7041744 | Method for cross-linking a polymer article The present invention relates to a method for cross-linking a polymer article which comprises a cross-linkable polymer with hydrolyzable silane groups and a crystallinity level of at least 30%. The cross-linking is performed in the presence of a silanol condensation... | 05/09/2006 |
| 7026409 | Polymer-supported arylbis(perfluoroalkylsulfonyl)-methane The present invention provides a solid acid catalyst that is excellent from the point of toxicity, environment and others, wherein reaction can be progressed effectively with Bronsted acid or Lewis acid catalyst. For example, the benzoylation reaction of alcohol can... | 04/11/2006 |
| 7001966 | Method for the production of isobutene polymers The present invention relates to a process for preparing an isobutene polymer using a cyclopentene derivative as initiator and to the isobutene polymer obtainable by means of the process and to particular functionalization products thereof. ... | 02/21/2006 |
| 6992147 | Modified polymers prepared with lanthanide-based catalysts A method for preparing a functionalized polymer comprising the steps of preparing a pseudo-living polymer by polymerizing conjugated diene monomer with a lanthanide-based catalyst, and reacting the pseudo-living polymer with at least one functionalizing agent define... | 01/31/2006 |
