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| Number | Title | Issue Date |
| 8188195 | Polymers functionalized with nitroso compounds A method for preparing a functionalized polymer, the method comprising the steps of: (i) polymerizing monomer with a coordination catalyst to form a reactive polymer; and (ii) reacting the reactive polymer with a nitroso compound. ... | 05/29/2012 |
| 8063152 | Boron containing functionalizing agent The present invention relates to functionalizing agents that are particularly useful for functionalizing living rubbery polymers to make the polymer more compatible with fillers, such as carbon black and silica. These functionalizing agents are comprised of a boron ... | 11/22/2011 |
| 7442746 | Epoxidation of unsaturated cationically stabilized polymer latex The present invention is directed to a process for synthesizing an epoxidized polymer that includes the steps of: (1) preparing a cationically stabilized polymer latex containing at least one conjugated diolefin monomer in a first ... | 10/28/2008 |
| 7423097 | Glycidyloxy groups-containing polybutadiene, mono-oxetane compound and cationic photoinitiator A radiation curable resin composition comprises a glycidyloxy groups-containing polybutadiene or hydrogenated polybutadiene, a mono-oxetane compound or monofunctional epoxy compound, and a cationic photopolymerization initiator. ... | 09/09/2008 |
| 7385010 | Hydrogenation of diene-based polymer latex The present invention relates to a process for the hydrogenation of the carbon-carbon double bonds in diene based polymer latex. ... | 06/10/2008 |
| 7345115 | Organic solvent-free hydrogenation of diene-based polymers A process is provided for the hydrogenation of carbon-carbon double bonds in polymers by treatment of the polymers with hydrogen in the presence of rhodium-based catalysts and in the complete absence of organic solvent. ... | 03/18/2008 |
| 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 |
| 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 |
| 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 |
| 7250476 | Multi-functional polymers A multi-functional polymer defined by the formula (Q—RnZ—P2—Y where (Q—R)n is a functionality cluster, Q is a functional group, R is a multi-valent organic group, P2 is a long-chain p... | 07/31/2007 |
| 7241841 | Hydrogenated copolymers of unsubstituted and substituted conjugated dienes The random, hydrogenated copolymers according to the present invention of unsubstituted conjugated dienes and substituted conjugated dienes, having a glass transition temperature of ≦−60° C., an enthalpy of fusion of ≦100 J/g and a content of residual double ... | 07/10/2007 |
| RE39617 | Butadiene polymers having terminal functional groups Hydrogenated butadiene polymers having terminal functional groups have minimum viscosity at any molecular weight when the 1,2-addition is between 30% and 70% Hydrogenated butadiene polymers having about two terminal hydroxyl groups per molecule have surprisingly low... | 05/08/2007 |
| RE39559 | Butadiene polymers having terminal functional groups Hydrogenated butadiene polymers having terminal functional groups have minimum viscosity at any molecular weight when the 1,2-addition is between 30% and 70%. Hydrogenated butadiene polymers having about two terminal hydroxyl groups per molecule have surprisingly lo... | 04/10/2007 |
| 7202306 | Method for producing modified conjugated diene polymer and rubber composition Disclosed are a method for producing a modified conjugated diene polymer improved in quality stability, more enhanced in low heat buildup and reinforcing ability when used in a rubber composition, excellent in wear resistance, mechanical characteristics and processa... | 04/10/2007 |
| 7201962 | Hemocompatible coated polymer and related one-step methods A polymer with a hemocompatible film or coating is manufactured by a one-step method comprising polymerizing monomer droplets comprising at least one crosslinking agent to form a polymer and simultaneously coating the resulting polymer using at least one dispersing ... | 04/10/2007 |
| 7199175 | Tread for a tire having a rigidity gradient A tire tread comprising a rubber composition based on (phr: parts by weight per hundred parts of elastomer): (i) a diene elastomer; (ii) more than 50 phr of an inorganic filler as reinforcing filler; | 04/03/2007 |
| 7186782 | Hydrogenation catalyst composition and process for hydrogenation of conjugated diene polymer A process for hydrogenation of an unsaturated polymer. The conjugated diene polymer in an inert organic solvent is brought into contact with hydrogen in the presence of a hydrogenation catalyst composition to selectively hydrogenate the unsaturated double bonds in t... | 03/06/2007 |
| 7176262 | Hydrogenated vinyl-polybutadienes The hydrogenated vinyl-polybutadienes according to the present invention have degrees of hydrogenation of from 20 to 100%, Mooney viscosities in the range of from 10 to 150 Mooney units (ML 1+4/100° C.), glass transition temperatures (Tg) of ≦−57° C... | 02/13/2007 |
| 7163975 | Tire with compound of rubber composition comprised of silanol and/or siloxy functionalized elastomer and silica The invention relates to a tire having at least one component (e.g. tread) of a rubber composition comprised of a composite of styrene/butadiene elastomer and functionalized styrene/butadiene elastomer containing an internal silanol and/or siloxy group therein with ... | 01/16/2007 |
| 7148292 | Method for hydrogenation of polymers in dispersed medium The invention concerns a method for hydrogenation of unsaturated polymers in dispersed medium based on an oxidation-reduction system containing hydrazine, an oxidant such as a peroxide and optionally a carboxylic acid. The hydrogenation rate can reach 100% in certai... | 12/12/2006 |
| 7144962 | Method for surface treatment of rubber process for production of rubber articles, rubber compositions, rubber molding, and process for production thereof A method for the surface treatment of rubber, a process for production of a rubber article, and a rubber composition wherein a structure derived from a fluorine compound containing a fluoroalkyl at both ends of its molecule are joined to a polymer main chain of cros... | 12/05/2006 |
| 7129288 | Polyurethanes containing sulphide groups, polymeric mixtures based thereon, production and use thereof Novel polyurethanes containing sulfide groups which comprise at least one group of the general formula I in the polymer main chain and/or at least one group of the general formula II incorporated at the chain end: —X—A—S—B—Y— (I) ... | 10/31/2006 |
| 7125934 | Functionalization of living rubbery polymers with nitrones This invention discloses a low cost process that can be used to functionalize living rubbery polymers with terminal nitroxide end-groups to promote interaction between the polymer end-groups and surface functionalities commonly found on carbon black and silica fille... | 10/24/2006 |
| 7112632 | Process for the preparation of low branch content polybutadiene A process for the preparation of low branch content polybutadiene comprising: (a) a first butadiene polymerisation stage; (b) treatment of the polymer solution obtained upon completion of stage (a) with a coupling ... | 09/26/2006 |
| 7105613 | COterminated rubber for plastics A process for the manufacture of a baleable lithium carboxylate polymer. The process includes polymerizing at least one conjudated diene in the presence of an organolithium initiator to a substantial completion. Thereafter, the polymerization process is terminated b... | 09/12/2006 |
| 7030195 | Process for the preparation of polybutadiene with a low branching degree Process for the preparation of polybutadiene with a low branching degree which comprises: (a) a first polymerization step of butadiene in the presence of organic solvents and in the presence of a catalytic system comprising (a1) a derivative of neodymiu... | 04/18/2006 |
| 7026406 | Syndiotactic styrene polymers and process for the production thereof A syndiotactic styrenic polymer having a narrow molecular weight distribution which is a (co)polymer comprising at least one structural unit represented by the following Formula (1): wherein C1 of a phenyl g... | 04/11/2006 |
| 7026410 | Solventless method for preparation of carboxylic polymers A solventless process for making a polymeric composition having at least two pendant carboxyl groups, which comprises reacting at least one molecule of water with at least one dicarboxylic acid anhydride group of at least one suitable polymer. ... | 04/11/2006 |
| 7019084 | Tire with rubber composition The present invention relates to the preparation of rubber compositions for tire tread and tire sidewall component applications. A tire is provided having tread of such composition designed for relatively heavy loads such as, for example, truck tires. A tire having ... | 03/28/2006 |
| 7001946 | Tire with tread of natural rubber-rich rubber composition This invention relates to tires having a tread of a natural rubber-rich rubber composition reinforced with a combination of rubber reinforcing carbon black and precipitated silica in which carbon black is in the majority of such reinforcement. In one aspect, the tre... | 02/21/2006 |
| 6998448 | Tire with tread of CIS 1,4-polybutadiene rich rubber composition which contains a functional styrene/butadiene elastomer, silica and coupling agent The invention relates to a tire having a tread of a rubber composition comprised of a composite of styrene/butadiene elastomer and functionalized styrene/butadiene elastomer containing an internal silanol and/or siloxy group therein with pendent silanol and/or alkox... | 02/14/2006 |
| 6984706 | Diene rubber, process for production thereof, rubber compositions, process for producing the same, and crosslinked rubbers A diene rubber (A) having a weight average molecular weight (Mw) of 100,000 to 3,000,000, an Mw/number average molecular weight (Mn) ratio of 1.30 to 2.50, and an Mw/peak top molecular weight (Mp) ratio 0.70 to 1.30. A rubber composition comprising the diene rubber ... | 01/10/2006 |
| 6979714 | Adhesion promoting agent and coating compositions for polymeric substrates The present invention provides an adhesion promoting agent which includes a graft copolymer formed by a halogenated polyolefin polymer with at least one reactive functionality and a substantially saturated hydrocarbon polymer having more than one reactive functional... | 12/27/2005 |
| 6969739 | Rubber composition A diene polymer rubber composition comprising (A) 100 parts by weight of a raw material rubber comprising (A-1) a diene rubbery polymer which is a conjugated diene rubber polymer or conjugated diene-styrene rubbery copolymer (1) containing a modified component in an... | 11/29/2005 |
| 6969737 | Adhesion promoter for cord-reinforced rubber and metal or polymer substrate/rubber composites A rubber composition including a natural or synthetic rubber, and an adhesive resin capable of unexpected adhesion to metal, polymer and glass substrates, particularly cords in radical tires, hoses, conveyor belts, transmission belts, and the like by the addition of... | 11/29/2005 |
| 6951906 | Process for hydrogenating a conjugated diene polymer This invention relates to a process for selectively hydrogenating the unsaturated double bonds of conjugated diene units of a homopolymer or copolymer. By using a highly active novel homogeneous organo titanium catalyst represented by formula (I) and lithium hydride... | 10/04/2005 |
| 6943250 | Protected aminofunctionalized polymerization initiators and methods of making and using same Anionic polymerization initiators useful in the preparation of polymers having a protected amine functional group. The amine functionality is part of a heterocyclic radical and includes a protecting group. ... | 09/13/2005 |
| 6916868 | Selective modification of pendent functionalities of polymers A process for selectively modifying pendent functionalities of a polymer containing the pendent functionalities and hydrolytically unstable backbone functionalities is provided. The process includes: (a) providing the polymer in a solvent system (preferably an ether... | 07/12/2005 |
| 6908957 | Curable electron donor compounds Electron donor compounds, suitable for use as adhesives or as components in adhesives, contain a carbon to carbon double bond attached to an aromatic ring and conjugated with the unsaturation in the aromatic ring. ... | 06/21/2005 |
| 6906152 | Rubber compositions The present invention provides a diene rubber composition having excellent processability and being improved in both the balance between low rolling resistance and wet skid resistance, and strength properties. The composition according to the invention is a diene po... | 06/14/2005 |
