| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 524575000 | Interpolymer with at least one aromatic hydrocarbon monomer | 27 |
| 20130123418 | RUBBER COMPOSITION CONTAINING A MODIFED ELASTOMER, METHOD FOR PREPARING SAME, AND TIRE CONTAINING SAME - The invention relates to a rubber composition based on at least one diene elastomer, a reinforcing filler, a chemical crosslinker and a modifier selected from compounds comprising at least one group Q, and at least one group A, which are joined to one another by at least one and preferably one spacer group Sp, wherein:
| 05-16-2013 |
| 20110282001 | FUNCTIONALIZED DIENE RUBBERS - The present invention relates to functionalised diene rubbers and their production, to rubber mixtures, comprising these functionalised diene rubbers, and to their use for the production of rubber vulcanisates, which serve in particular for the production of highly reinforced rubber mouldings. Particular preference is given to the use in the production of tyres which have particularly low rolling resistance, and particularly high wet slip resistance and abrasion resistance. | 11-17-2011 |
| 20120108736 | RUBBER COMPOSITIONS INCLUDING A POLYMERIC COMPONENT HAVING A MULTI-MODAL MOLECULAR WEIGHT DISTRIBUTION - A vulcanizable composition of matter comprising a rubber component, a filler, a curative for the rubber, where the rubber component includes a multi-modal polymer including at least two distinct peak molecular weights within a range defined by a lower limit of 80 kg/mole and an upper limit of 500 kg/mole. | 05-03-2012 |
| 20100144959 | PREPARATION OF ALKOXY- AND/OR HALOSILANE (POLY)SULFIDES AND COUPLING AGENTS COMPRISED THEREOF - At least one (poly)thio alkoxy and/or halosilane is/are prepared by reaction of at least one sulfur-containing reagent with at least one alkoxy and/or halosilane, wherein an ionic addition of a sulfur-containing reagent to an alkoxy and/or halosilane is preferably conducted with thermal and/or actinic activation; the novel polythio alkoxy and/or halosilanes of formula (III.2) thus prepared are particularly useful as coupling agents in elastomeric compositions containing a white filler of the silica type and having the formula (III.2) wherein, for example, R | 06-10-2010 |
| 20100004381 | FUNCTIONALIZED TRANSLUCENT COMPOUNDS - Functionalized translucent compounds are disclosed. The functionality appears at surface(s) of articles molded or extruded from thermoplastic compounds containing functionalized surface agents that are reactive physically or chemically with desired chemicals. | 01-07-2010 |
| 20100204397 | RUBBER LATEX, RUBBER LATEX FOR DIP MOLDING, AND DIP-MOLDED ARTICLE - [Problems] To provide a dip-molded article suitable for use in gloves, particularly gloves for medical use and the like, which has excellent strength and wearing feeling and is not deteriorated even when the article is sterilized by the irradiation with gamma rays, and a rubber latex suitable as a rubber latex for dip molding for obtaining the dip-molded article. | 08-12-2010 |
| 20100179280 | 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 polymerization unit is not less than 5 wt % and less than 45 wt % relative to the amount of the copolymer rubber, and (3) the content of a vinyl bond (a 1,2-bond) in the conjugated diolefin polymerization unit is 30 mol % or more relative to the amount of the conjugated diolefin polymerization unit. In the the copolymerization between the conjugated diolefin and the aromatic vinyl compound, a specific sulfur-containing polymerization terminator is used to terminate the reaction of the copolymerization. The sulfur-containing conjugated diolefin copolymer rubber has good processability and a good balance among wear resistance, fracture properties and low hysteresis loss. | 07-15-2010 |
| 20110098404 | FUNCTIONAL STYRENE-BUTADIENE COPOLYMER - A functional styrene-butadiene copolymer is disclosed. More specifically, the copolymer is prepared by radical polymerization of a styrene monomer, a butadiene monomer and an epoxy acrylate monomer in an emulsion state and ring-opening of the resultant styrene-butadiene-epoxy acrylate copolymer. When blended with silica, the disclosed copolymer provides excellent wet stopping performance and superior wear resistance. Therefore, it can be usefully applied for industrial materials including fuel-efficient tires, snow tires, belts, hoses, etc. | 04-28-2011 |
| 20110213074 | DIOL-DERIVED ORGANOFUNCTIONAL SILANE AND COMPOSITIONS CONTAINING SAME - Described are diol-derived organofunctional silanes in which the silanes contain cyclic and bridged alkoxy groups derived from hydrocarbon-based diols and methods for the preparation of the silanes. Also described are rubber compositions containing the diol-derived organofunctional silanes, methods for the preparation of the rubber compositions and articles of manufacture containing the rubber compositions, in particular, automotive tires and components thereof. | 09-01-2011 |
| 20080200606 | BLOCK COPOLYMER, RUBBER COMPOSITION CONTAINING THE SAME AND MOLDED PRODUCT - An objective of the present invention is to provide a block copolymer which is excellent in processability at the time of preparing a rubber composition and leads to a cross-linked rubber composition excellent in tensile property, wearing resistance, weatherability, ozone resistance and heat aging resistance when it is cross-linked, a rubber composition containing the block copolymer and a molded product. The block copolymer of the present invention comprises two polymer blocks each having an ethylenic unsaturated bond and other polymer block which is interposed between two polymer blocks, has a uniform weight average molecular weight in the range from 5,000 to 100,000. The weight average molecular weight of the polymer block having the ethylenic unsaturated bond is preferably in the range from 1,000 to 20,000. | 08-21-2008 |
| 20120277369 | Method for Producing Modified Conjugated Diene-Based Polymer, Modified Conjugated Diene-Based Polymer, and Modified Conjugated Diene-Based Polymer Composition - There are provided a modified conjugated diene-based polymer having a good balance between the hysteresis loss properties and the wet skid resistance, practically sufficient abrasion resistance and fracture strength, and high processability when formed into a vulcanized product, and a modified conjugated diene-based polymer composition. A method for producing a modified conjugated diene-based polymer, comprising: a polymerization step of polymerizing a conjugated diene compound or copolymerizing a conjugated diene compound with an aromatic vinyl compound using an alkali metal compound or an alkaline earth metal compound as a polymerization initiator to obtain a conjugated diene-based polymer having a reactive end, and a modifying step of reacting a compound having a specific structure with the reactive end of the conjugated diene-based polymer. | 11-01-2012 |
| 20120046413 | PNEUMATIC TIRE - A pneumatic tire obtained by using a rubber composition containing 100 parts by mass of a rubber component comprising at least one of natural rubber and diene base synthetic rubber, 20 to 150 parts by mass of precipitated silica as a filler in which a cetyltrimethylammonium bromide-adsorbing specific surface area (CTAB) (m | 02-23-2012 |
| 20120010356 | STYRENE BUTADIENE RUBBER WITH NOVEL STYRENE INCORPORATION - The present invention relates to improved compositions of SSBR rubber. The improved compositions exhibit sufficient or improved balance of characteristics such as rolling resistance, HBU, abrasion, grip, and/or tear. The compositions may be made in an efficient, cost-effective manner. | 01-12-2012 |
| 20120059113 | PROCESSING OF RUBBER COMPOSITIONS INCLUDING SILICEOUS FILLERS - Vulcanizates with desirable properties can be obtained from compositions incorporating polymers that include hydroxyl group-containing aryl functionalities, silica or other particulate filler(s) that contain or include oxides of silicon and a compound that includes multiple hydroxyl groups. The compound can act to disrupt the interactivity of the functionalities and the particulate filler particles during processing of the composition, thereby facilitating processing of the composition. | 03-08-2012 |
| 20120157616 | DIOL-DERIVED ORGANOFUNCTIONAL SILANE AND COMPOSITIONS CONTAINING SAME - Described are diol-derived organofunctional silanes in which the silanes contain cyclic and bridged alkoxy groups derived from hydrocarbon-based diols and methods for the preparation of the silanes. Also described are rubber compositions containing the diol-derived organofunctional silanes, methods for the preparation of the rubber compositions and articles of manufacture containing the rubber compositions, in particular, automotive tires and components thereof. | 06-21-2012 |
| 20120157615 | METHOD FOR PRODUCING A HYDROGENATED BLOCK COPOLYMER, HYDROGENATED BLOCK COPOLYMER OBTAINED BY SAID PRODUCTION METHOD AND COMPOSITION THEREOF - The present invention relates to a method for producing a hydrogenated block copolymer, comprises the steps of: (a) forming a block copolymer by allowing a living polymer having a specific structure to react with a bis-silane coupling agent having a specific structure; (b) hydrogenating the block copolymer to form a hydrogenated block copolymer; and (c) isolating the resultant hydrogenated block copolymer, in which the number of functional groups derived from the coupling agent in the hydrogenated block copolymer isolated in the step (c) is 1.5 or less per block copolymer molecule; a hydrogenated block copolymer obtained by the method; and a composition containing the hydrogenated block copolymer. | 06-21-2012 |
| 20120108737 | METHOD FOR PRODUCING MODIFIED CONJUGATED DIENE BASED (CO)POLYMER, MODIFIED CONJUGATED DIENE BASED (CO)POLYMER, AND RUBBER COMPOSITION - The method for producing a modified conjugated diene based (co)polymer, according to the present invention comprises a step of reacting a conjugated diene based (co)polymer with a metal halide compound to obtain a modified conjugated diene based (co)polymer, the conjugated diene based (co)polymer having a weight-average molecular weight of 150,000 to 2,000,000 and being obtained by bonding, to a polymer having at least a conjugated diene unit, an alkoxysilyl group and an optionally protected primary amino group. The method can satisfactorily produce a conjugated diene based (co)polymer which has a high Mooney viscosity, excellent shape stability and good processability. | 05-03-2012 |
| 20100324203 | STYRENE-BUTADIENE COPOLYMERS, PROCESS FOR THE PREPARATION THEREOF AND HIGH COHESION ADHESIVE COMPOSITIONS - The present patent of invention application refers to styrene-butadiene copolymers (SBR) that are prepared using aqueous emulsion polymerization technology and are intended for the adhesive and sealing industry, being particularly useful in the preparation of contact adhesives and pressure-sensitive adhesives (PSA) and widely applicable in the footwear and furniture industries. The use of this kind of elastomer in processes for preparing adhesives, having an aqueous or solvent base, provides high cohesion to adhesive compositions without compromising or jeopardizing the adhesion. The present invention is also intended to protect the process for obtaining SBR copolymers, simultaneously comprising: aqueous emulsion polymerization at high temperatures, the use of a specific surfactant and the maintenance of the Mooney viscosity and the combined styrene content in the copolymer in high ranges. Another object of the present invention application is the protection of adhesive compositions that are obtained from SBR copolymers, either in solid or latex form. | 12-23-2010 |
| 20120165464 | FUNCTIONALIZED POLYMERS AND VULCANIZATES WITH REDUCED HYSTERETIC LOSS - A method for preparing a functionalized polymer, the method comprising the step of reacting a reactive polymer with a functionalizing agent defined by formula I or formula II: | 06-28-2012 |
| 20120130009 | POLYMERS FUNCTIONALIZED WITH HYDROXYL GROUP-CONTAINING DIPHENLYETHYLENE - Vulcanizates with desirable properties can be obtained from compounds incorporating polymers that include hydroxyl group-containing diphenylethylene-type functionalities. The functionalities can be incorporated by using any or all of appropriate initiators, monomers and optional terminating compounds. Such polymers exhibit excellent interactivity with both conventional and non-conventional fillers. | 05-24-2012 |
| 20120172518 | Weighted Elastomers, Cement Compositions Comprising Weighted Elastomers, and Methods of Use - Methods and compositions are provided that relate to weighted elastomers. The weighted elastomers may comprise an elastomer and a weighting agent attached to an outer surface of the elastomer. An embodiment includes a method of cementing that comprises providing a cement composition containing cement, water, and a weighted elastomer. In addition, the cement composition may be introduced into a subterranean formation and allowed to set therein. | 07-05-2012 |
| 20120083571 | RUBBER COMPOSITION AND PNEUMATIC TIRE - A rubber composition, comprising a rubber component, and a carbon black, the carbon black satisfying the dibutyl phthalate (DBP) absorption number [unit: mL/100 g] of the carbon black is from 90 to 180, the difference of the BET specific surface area (BET5) [unit: m | 04-05-2012 |
| 20120252966 | PROCESS FOR PRODUCING MODIFIED CONJUGATED DIENE-BASED POLYMER, MODIFIED CONJUGATED DIENE-BASED POLYMER, AND POLYMER COMPOSITION - An object of the present invention is to provide a process for producing a modified conjugated diene-based polymer suitable for preparing a polymer composition excellent in the fuel cost saving effect. The present invention provides a process for producing a modified conjugated diene-based polymer, comprising reacting a conjugated diene-based polymer having a monomer unit based on a conjugated diene compound and a monomer unit based on a compound represented by the following formula (1), with an organometallic compound, and reacting the resulting reaction product with a hydrocarbyloxysilane compound: | 10-04-2012 |
| 20120259060 | RUBBER COMPOSITION WITH ORGANIC SALT CURING AGENT - A rubber composition comprising a metal salt of a carboxylic acid used as a curing agent, a highly unsaturated dieene rubber, a filler and a sulfur vulcanization system of between 0.5 phr and 8 phr of sulfur and at least one vulcanization accelerator. Particular embodiments may further include between 1 phr and 6 phr of a metal salt of a carboxylic acid that increases a tear index of the cured elastomer composition by at least 50 percent as compared to a similar cured elastomer composition, such similar cured elastomer composition being different in composition only in that it (1) lacks the metal salt of a carboxylic acid and (2) has an increased amount of the sulfur vulcanization system at about the same sulfur to accelerator ratio to maintain a 10% modulus of elongation at 23 0C to within 15% of the modulus of the cured rubber composition. | 10-11-2012 |
| 20120136114 | PROCESS FOR PRODUCING HYDROGENATED BLOCK COPOLYMER, HYDROGENATED BLOCK COPOLYMER OBTAINED BY THE PROCESS, AND COMPOSITION THEREOF - The present invention relates to a method for producing a hydrogenated block copolymer, including the steps of: (a) forming a block copolymer by allowing a living polymer having a specific structure to react with a tetra- or more functional silane coupling agent; (b) hydrogenating the block copolymer to form a hydrogenated block copolymer; (c) isolating the resultant hydrogenated block copolymer; and (d) deactivating a functional group in the silane coupling agent and/or an unreacted functional group present in a coupling agent residue in the block copolymer or the hydrogenated block copolymer prior to the step (c), in which the number of functional groups derived from the coupling agent in the hydrogenated block copolymer recovered in the step (c) is 1.5 or less per block copolymer molecule; a hydrogenated block copolymer obtained by the method; and a composition containing the hydrogenated block copolymer. | 05-31-2012 |
| 20130012652 | TIRE AND RUBBER COMPOSITION CONTAINING A GRAFTED POLYMER - The invention relates to a tire comprising at least one rubber composition based on at least one diene elastomer, one reinforcing filler, one chemical crosslinking agent and one modifying agent, chosen from the compounds of following formula (I): | 01-10-2013 |
| 20130012651 | CONJUGATED DIENE RUBBER, RUBBER COMPOSITION, CROSSLINKED RUBBER, TIRE, AND PROCESS FOR PRODUCTION OF CONJUGATED DIENE RUBBER - For a tire excellent in strength, low-heat buildup property, wet grip property, and driveability, and a rubber composition and a conjugated diene rubber for the tire, a conjugated diene rubber of the present invention includes 5 wt % or more of a structure that 3 or more conjugated diene polymer chains are bound via a denaturing agent, obtained by reaction of each chain and the agent, each chain being that at least one of terminals is an isoprene block having 70 wt % or more of an isoprene monomer unit, and the other is an active terminal, the agent having, per molecule, at least one of an epoxy group(s) and a hydrocarbyloxysilyl group(s), and being that a total number of the epoxy group(s) and hydrocarbyloxy groups in the hydrocarbyloxysilyl group(s) per molecule is 3 or more. | 01-10-2013 |
