Patent application number | Description | Published |
20090209699 | Method of producing a rubber composition - The invention is directed to a method of manufacturing a rubber composition with improved processing properties and optimized abrasion characteristics. Three methods with differing number of processing steps for the manufacture of a rubber composition with improved processing properties and optimized abrasion characteristics are disclosed. | 08-20-2009 |
20090306267 | Rubber mixture with improved abrasion - 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%. | 12-10-2009 |
20100108239 | Tire composition with improved vulcanizing agent - A tire composition with a Shore A hardness, according to DIN 53 505 and ASTM D2240, of not less than 40 and not greater than 95 and a glass-transition temperature T | 05-06-2010 |
20100112258 | Crosslinked polysulfide-containing cycloaliphatic compound, process for its preparation, filled sulfur-vulcanizable elastomer composition containing same and articles fabricated therefrom - A crosslinked polysulfide-containing cycloaliphatic compound, useful as a crosslinker for filled sulfur-vulcanizable elastomer compositions, is represented by the general formula: | 05-06-2010 |
20100112259 | Sulfur-containing cycloaliphatic compound, filled sulfur-vulcanizable elastomer composition containing sulfur-containing cycloaliphatic compound and articles fabricated therefrom - A sulfur-containing cycloaliphatic compound, useful as a crosslinker for filled sulfur-vulcanizable elastomer compositions, is represented by the general formula: | 05-06-2010 |
20100113681 | Sulfur-containing cycloaliphatic compound, process for its preparation, filled sulfur-vulcanizable elastomer composition containing same and articles fabricated therefrom - A sulfur-containing cycloaliphatic compound, useful as a crosslinker for filled sulfur-vulcanizable elastomer compositions, is represented by the general formula: | 05-06-2010 |
20100292366 | Vulcanizable rubber mixture and rubber products comprising the same - The vulcanizable rubber mixture according to this invention is used for rubber products in particular vehicle tires and vehicle tire treads, but also technical rubber products like belts on conveyor systems, technical hoses, vibration dampers and impact dampers, or wire coatings. All these products benefit from the improved processability that is achieved with the invention in that the mixture comprises a polymer represented by the formula F1-A-F2, or a mixture of F1-A-F2 with an astral or radial coupling product of F1-A-units, coupled by a multivalent coupling agent; wherein F1 represents a terminal functionalization of the polymeric chain, F2 represents a terminal functionalization different from F1; and A represents the polymeric chain of a polymer formed by the copolymerization between one or more conjugated dienes with one or more aromatic vinyl monomers. | 11-18-2010 |
20100292406 | Vulcanizable rubber mixture and rubber products comprising the same - The invention relates to a vulcanizable rubber mixture and to its use for rubber products which need good grip in wet conditions or in icy conditions, in particular vehicle tires and vehicle tire treads, but also technical rubber products like belts on conveyor systems which can have exposure to weathering, technical hoses, or vibration dampers and impact dampers. | 11-18-2010 |
20110065833 | Rubber mixture comprising precipitated silicic acid - The invention relates to a rubber mixture, in particular for pneumatic vehicle tires, bands, and belts, having improved abrasion behavior. The rubber mixture is characterized by the following composition: at least one diene rubber and—at least one precipitated silicic acid having a CTAB surface area greater than or equal to 150 m | 03-17-2011 |
20110086944 | Sealant, in particular for rubber articles - A sealant, in particular for rubber articles, preferably for motor vehicle tires, comprises: 30-90 wt-% of at least one natural rubber latex dispersion; 0.1-10 wt-% of at least one ionic and/or non-ionic emulsifier and/or dispersing agent; 0.0001-10 wt-% of at least one protease; 5-40 wt-% of at least one aqueous adhesive resin dispersion; 1-50 wt-% of at least one antifreeze agent; 0.01-12 wt-% of decomposition products of a deproteinizing reaction; 0-30 wt-% of additional additives. | 04-14-2011 |
20110112213 | Rubber mixture comprising environmentally friendly softeners cross reference to related applications - The invention relates to a rubber mixture, in particular for vehicle air-inflated tires, seat belts, belts and hoses. The rubber mixture is characterized by the following composition:
| 05-12-2011 |
20120116002 | SULFUR-CONTAINING CYCLOALIPHATIC COMPOUND, FILLED SULFUR-VULCANIZABLE ELASTOMER COMPOSITION CONTAINING SULFUR-CONTAINING CYCLOALIPHATIC COMPOUND AND ARTICLES FABRICATED THEREFROM - A sulfur-containing cycloaliphatic compound, useful as a crosslinker for filled sulfur-vulcanizable elastomer compositions, is represented by the general formula: | 05-10-2012 |
20120289647 | Sulfur-Crosslinkable Rubber Mixture - A sulfur-crosslinkable rubber mixture which, for improved abrasion characteristics with no significant deterioration in rolling resistance and in wet grip, comprises at least one functionalized diene rubber, the functionalization of which is along the polymer chain and/or at the end and enables attachment to fillers, the diene rubber having a glass transition temperature T | 11-15-2012 |
20130102714 | Rubber Mixture - A rubber mixture, in particular for vehicle pneumatic tires, straps, belts and hoses. The rubber mixture includes the following constituents: at least one synthetic diene rubber; at least one carbon black; at least one silane; and, at least one amphophilic compound. The rubber mixture ameliorates the target conflict between rolling resistance and wet grip. | 04-25-2013 |
20130237659 | PNEUMATIC TIRES FOR COMMERCIAL VEHICLES - A pneumatic tire for a commercial vehicle with a tread, wherein at least the part of the tread which comes into contact with the road contains a sulphur-vulcanized rubber mixture. The sulphur-vulcanized rubber mixture contains 90 to 50 phr (parts by weight, based on 100 parts by weight, of all of the rubbers in the mixture) of natural rubber, 10 to 50 phr of at least one polybutadiene having a glass transition temperature T | 09-12-2013 |
20130261272 | PROCESS FOR PRODUCING POLYMER-FUNCTIONALIZED FILLER PARTICLES - A process for producing polymer-functionalized filler particles and polymer-functionalized filler particles obtained by this process. The polymer-functionalized filler particles are used as additives for rubber mixtures. The polymers for functionalizing the filler particles are obtained in-situ starting from filler particles having a surface-bound RAFT agent. The binding of silyl-bearing RAFT agents and of Diels-Alder RAFT agents occurs via the R-group and the subsequent RAFT polymerization proceeds via a reactive site of the RAFT agent. | 10-03-2013 |
20130261356 | METHOD FOR PRODUCING ENVIRONMENTALLY-FRIENDLY PLASTICIZERS - A process for producing an environmentally-friendly plasticizer, which is particularly suitable for use in vehicle tires or technical rubber articles. A vulcanized and/or unvulcanized polymer material of a high molecular weight is converted into a low-molecular phase by direct thermal liquefaction. The vulcanized and/or unvulcanized high-molecular-weight polymer material is provided as a polymer powder and/or a granulated polymer and can be obtained from used tires. | 10-03-2013 |
20130281611 | RUBBER BLEND WITH AN ENVIRONMENTALLY-FRIENDLY PLASTICISER - A rubber blend, particularly for pneumatic vehicle tires, harnesses, straps and hoses. The rubber blend has the following composition: at least one polar or nonpolar rubber, at least one light and/or dark filler, at least one plasticizer which is free from polycyclic aromatic compounds and which has been produced based on waste materials containing carbon that result from the production of tires and additional technical rubber articles, as well as further additives. | 10-24-2013 |
20130289197 | RUBBER BLEND WITH IMPROVED ROLLING RESISTANCE BEHAVIOR - A rubber blend, particularly for pneumatic vehicle tires, harnesses, straps and hoses. The rubber blend includes at least one rubber blend A of a solid styrene-butadiene rubber with an average molecular weight M | 10-31-2013 |
20140166181 | PNEUMATIC VEHICLE TIRE - A pneumatic vehicle tire has a radial carcass, a sulfur-impregnated rubber mixture which contains 70 to 100 phr (parts per weight related to 100 parts per weight of the entire types of rubber in the mixture) of natural rubber, up to 30 phr of at least one polybutadiene, up to 15 phr of at least one soot, 20 to 100 phr of at least one silica, at least one silane coupling agent and one adhesive system. In order to lengthen the service life of the pneumatic vehicle tire, the rubber mixture is the carcass rubber coating and the silica has a CTAB number according to ASTM D 3765 of more than 100 m | 06-19-2014 |
20140171556 | SULFUR-CROSSLINKABLE RUBBERIZING MIXTURE - A sulfur-crosslinkable rubberizing mixture for strengthening elements in motor vehicle pneumatic tires comprises 70 to 100 phr (parts by weight, based on 100 parts by weight of total rubbers in the mixture) of natural rubber, up to 30 phr of at least one polybutadiene, up to 15 phr of at least one carbon black, 20 to 100 phr of at least one high-dispersibility silica, at least one silane coupling agent and a bonding system. The invention further relates to motor vehicle pneumatic tires comprising the sulfur-crosslinked rubberizing mixture. For improved resistance to cracking and growth of cracks with good adhesion and good mechanical and dynamic properties, the high-dispersibility silica has a CTAB number to ASTM D 3765 of more than 130 m | 06-19-2014 |
20140171564 | SULFUR-CROSSLINKABLE RUBBERIZING MIXTURE - A sulfur-crosslinkable rubberizing mixture for strengthening elements in motor vehicle pneumatic tires comprises 70 to 100 phr (parts by weight, based on 100 parts by weight of total rubbers in the mixture) of natural rubber, up to 30 phr of at least one polybutadiene, 40 to 70 phr of at least one carbon black and a bonding system. Further, motor vehicle pneumatic tires are disclosed that comprise the sulfur-crosslinked rubberizing mixture. The key conflict between tear propagation resistance, stiffness and heat build-up is solved by virtue of the carbon black being a nanostructured carbon black with a rough surface. | 06-19-2014 |