Abstract: The invention relates to a rubber blend, to a sulfur-crosslinkable rubber mixture comprising the rubber blend and to a vehicle tire comprising such a rubber mixture. The rubber blend comprises at least one solution-polymerized diene polymer A of high molecular weight and at least one solution-polymerized polymer B of low molecular weight, wherein at least one of polymers A and B has been functionalized at the chain end and/or along the polymer chain and/or at a coupling site with at least one group selected from epoxy groups, hydroxyl groups, carboxyl groups, silane sulfide groups, amino groups, siloxane groups, organosilicon groups, phthalocyanine groups and amino group-containing alkoxysilyl groups.

Abstract: A sulfur-crosslinkable rubber mixture, a vulcanizate thereof, and a vehicle tire. The sulfur-crosslinkable rubber mixture contains at least the following constituents: a) 1 to 30 phf of at least one silane A selected from the silanes having the general empirical formulae A-I) and A-XI): A-I) (R1)oSi—R20—(S—R30)m—Sx—(R30—S)m—R20—Si(R1)o; A-XI) (R1)oSi—R2—(S—R3)q—S—X; and b) 0.5 to 30 phf of at least one silane B selected from the silanes having the general empirical formulae B-I), B-01) and B-02): B-I) (R1)oSi—R4—(S—R5)u—S—R4—Si(R1)o; B-01) (R1)oSi—R10—Si(R1)o; B-02) (R1)oSi—R9; and c) 12 to 300 phr of silicon dioxide having a CTAB surface area to ASTM D 3765 of 190 to 300 m2/g; and d) at least one diene rubber, where x is an integer from 2 to 10; and q is 1 or 2 or 3; and u is 1 or 2 or 3; and X is a hydrogen atom or a —C(?O)—R8 group where R8 is selected from hydrogen, C1-C20-alkyl groups, C6-C20-aryl groups, C2-C20-alkenyl groups and C7-C20-aralkyl groups.

Abstract: The invention relates to a crosslinkable rubber mixture comprising: a. a diene rubber having an average molar mass of more than 150 000 g/mol, b. a filler, c. a polymer or oligomer having an average molar mass Mn of less than 150 000 g/mol, which has a filler-interactive functional group and a glass transition temperature Tg<?15° C., d. a polymer or oligomer having an average molar mass Mn of less than 150 000 g/mol, which has a filler-interactive functional group and a glass transition temperature Tg>?15° C.

Abstract: A sulfur-crosslinkable rubber mixture, to the vulcanizate thereof, and to a vehicle tire. The sulfur-crosslinkable rubber mixture comprises at least the following constituents: —at least one solution-polymerized styrene-butadiene rubber (SSBR) having a glass transition temperature Tg according to DSC of ?35° C. to ?85° C.; and —at least one silica; and —1 to 30 phf of at least one silane A having the general empirical formula A-I) (R1)oSi—R2—(S—R3)q—S—X; and —0.5 to 30 phf of at least one silane B having the general empirical formula B-I) (R1)oSi—R2—(S—R3)u—S—R2—Si(R1)o, where q=1 or 2 or 3; and u=1 or 2 or 3; and X is a hydrogen atom or a —C(?O)—R8 group where R8 is selected from hydrogen, C1-C20 alkyl groups, C6-C20 aryl groups, C2-C20 alkenyl groups and C7-C20 aralkyl groups.

Abstract: The invention relates to a sulfur-crosslinkable rubber mixture, to the vulcanizate thereof, and to a vehicle tire. The rubber mixture according to the invention comprises at least the following constituents: at least one diene rubber; and, at least one char (HTC char) obtained by hydrothermal carbonization of at least one starting substance. A vehicle tire according to the invention comprises at least one vulcanizate according to the invention of the rubber mixture in at least one component.

Abstract: Polar silane linkers are provided that attach to resins to form silane-functionalized resins. The functionalized resins can be bound to hydroxyl groups on the surface of silica particles to improve the dispersibility of the silica particles in rubber mixtures. Further disclosed are synthetic routes to provide the silane-functionalized resins, as well as various uses and end products that benefit from the unexpected properties of the silane-functionalized resins. Silane-functionalized resins impart remarkable properties on various rubber compositions, such as tires, belts, hoses, brakes, and the like. Automobile tires incorporating the silane-functionalized resins are shown to possess excellent results in balancing the properties of rolling resistance, tire wear, and wet braking performance.

Abstract: The invention relates to a process for obtaining natural rubber from plant material containing at least the step of milling the plant material with at least one ball mill comprising milling media. The invention further relates to the natural rubber obtained by this process and to the use of at least one ball mill comprising milling media for milling plant material when obtaining natural rubber from plant material. In the process, the ball mill has a nonmetallic lining and/or the milling media have at least a nonmetallic surface.

Abstract: The invention relates to a compound, to a rubber mixture containing the compound, to a vehicle tire comprising the rubber mixture in at least one component, to a process for producing the compound and to the use of the compound as an aging stabilizer and/or antioxidant and/or antiozonant and/or dye. The compound according to the invention has the formula I).

Abstract: The present invention relates to a sulfur-crosslinkable rubber composition comprising a filler component in an amount in the range of 1 to 350 phr, and at least one graft copolymer having a modified diene rubber backbone and one or more oligomeric side chains grafted to the modified diene rubber backbone, wherein the oligomeric side chains are obtained through reversible addition fragmentation chain transfer polymerization of a monomer composition, and wherein the monomer composition comprises at least one polar monomer.

Abstract: The present invention relates to a process for obtaining aging-resistant natural rubber, to a rubber composition comprising the thus-obtained natural rubber and to the use of this composition for producing consumer goods.

Abstract: Polar silane linkers are provided that attach to resins to form silane-functionalized resins. The functionalized resins can be bound to hydroxyl groups on the surface of silica particles to improve the dispersibility of the silica particles in rubber mixtures. Further disclosed are synthetic routes to provide the silane-functionalized resins, as well as various uses and end products that benefit from the unexpected properties of the silane-functionalized resins. Silane-functionalized resins impart remarkable properties on various rubber compositions, such as tires, belts, hoses, brakes, and the like. Automobile tires incorporating the silane-functionalized resins are shown to possess excellent results in balancing the properties of rolling resistance, tire wear, and wet braking performance.

Abstract: The invention relates to a compound, to a rubber mixture containing the compound, to a vehicle tire comprising the rubber mixture in at least one component, to a process for producing the compound and to the use of the compound as an aging stabilizer and/or antioxidant and/or dye. The compound according to the invention has the formula I).

Abstract: The invention relates to a sulfur-crosslinkable rubber mixture, a vulcanizate and a vehicle tire. The sulfur-crosslinkable rubber mixture contains at least the following constituents: at least one diene rubber and at least one silica and at least one silane having the general empirical formula [(R1)oSi—(R3—)pX—(R4—)p]mSn(R2)2-m,??I) where X is a radical comprising at least one polar group selected from urethane, amide, ester, amine, thiourea, thioamide, O-organyl thiocarbamate, S-organyl thiocarbamate, amidine, guanidine, piperidine, maleic anhydride, sulfonamide, carbonate, imidazoline, thiazolidine, thiazolidinone, pyrrolidine, pyrazole, benzimidazole, indole, purine, thiazine, sulfonate, and phosphonate groups.

Abstract: Modified thermoplastic hydrocarbon thermoplastic resins are provided, as well as methods of their manufacture and uses thereof in rubber compositions. The modified thermoplastic resins are modified by decreasing the relative quantity of the dimer, trimer, tetramer, and pentamer oligomers as compared to the corresponding unmodified thermoplastic resin polymers, resulting in a product that exhibits a greater shift in the glass transition temperature of the elastomer(s) used in tire formulations. This translates to better viscoelastic predictors of tire tread performance, such as wet grip and rolling resistance. The modified thermoplastic resins impart remarkable properties on various rubber compositions, such as tires, belts, hoses, brakes, and the like. Automobile tires incorporating the modified thermoplastic resins are shown to possess excellent results in balancing the properties of rolling resistance, tire wear, snow performance, and wet braking performance.

Abstract: The invention relates to a sulfur-crosslinkable rubberization mixture for metallic or textile strength members containing at least one novolac resin comprising alkyl urethane units and produced by reaction of a phenolic compound, an aldehyde and a carbamate resin, wherein the carbamate resin is produced by reaction of alkyl urethane with an aldehyde, and at least one etherified melamine resin. The invention further relates to a pneumatic vehicle tire which comprises at least one such sulfur-crosslinked rubberization mixture. For improved durability of the rubberized strength members, the rubberization mixture contains less than 2.5 phr (parts by weight, based on 100 parts by weight of the total rubbers in the mixture) of at least one novolac resin comprising alkyl urethane units and produced by reaction of a phenolic compound, an aldehyde and a carbamate resin, wherein the carbamate resin is produced by reaction of alkyl urethane with an aldehyde, and less than 2.

Abstract: The present invention relates to a sulfur-crosslinkable rubberization mixture for metallic strength members containing at least one novolac resin comprising alkyl urethane units and produced by reaction of a phenolic compound, an aldehyde and a carbamate resin, wherein the carbamate resin is produced by reaction of alkyl urethane with an aldehyde, and at least one etherified melamine resin. The invention further relates to a pneumatic vehicle tire which comprises at least one such sulfur-crosslinked rubberization mixture. For improved durability of the rubberized strength members, the rubberization mixture contains at least one organic cobalt salt.

Abstract: Polar silane linkers are provided that attach to resins to form silane-functionalized resins. The functionalized resins can be bound to hydroxyl groups on the surface of silica particles to improve the dispersibility of the silica particles in rubber mixtures. Further disclosed are synthetic routes to provide the silane-functionalized resins, as well as various uses and end products that benefit from the unexpected properties of the silane-functionalized resins. Silane-functionalized resins impart remarkable properties on various rubber compositions, such as tires, belts, hoses, brakes, and the like. Automobile tires incorporating the silane-functionalized resins are shown to possess excellent results in balancing the properties of rolling resistance, tire wear, and wet braking performance.

Abstract: Modified thermoplastic hydrocarbon thermoplastic resins are provided, as well as methods of their manufacture and uses thereof in rubber compositions. The modified thermoplastic resins are modified by decreasing the relative quantity of the dimer, trimer, tetramer, and pentamer oligomers as compared to the corresponding unmodified thermoplastic resin polymers, resulting in a product that exhibits a greater shift in the glass transition temperature of the elastomer(s) used in tire formulations. This translates to better viscoelastic predictors of tire tread performance, such as wet grip and rolling resistance. The modified thermoplastic resins impart remarkable properties on various rubber compositions, such as tires, belts, hoses, brakes, and the like. Automobile tires incorporating the modified thermoplastic resins are shown to possess excellent results in balancing the properties of rolling resistance, tire wear, snow performance, and wet braking performance.

Abstract: The invention relates to a process for preparing a silane, to a process for modifying a silica with the silane, and to a modified silica. The process for preparing a silane of the formula I) comprises at least the following steps: a) providing a substance (R1)oSi—R2—HNC(?O)NH-A-NH2; b) providing a substance HOC(?O)-A-S2-A-C(?O)OH; c) activating the substance from step b) through reaction with oxalyl chloride to form ClC(?O)-A-S2-A-C(?O)Cl; d) reacting at least two equivalents of the substance from step a) with one equivalent of the substance from step a), thereby obtaining a silane of the formula I); e) optionally purifying the silane of the formula I) obtained in step d) (R1)oSi—R2—HNC(?O)NH-A-HNC(?O)-A-Sk-A-C(?O)NH-A-NHC(?O)—R2—Si(R1),??I) wherein the groups A within a molecule may be identical or different and are aromatic groups.

Abstract: Modified thermoplastic hydrocarbon thermoplastic resins are provided, as well as methods of their manufacture and uses thereof in rubber compositions. The modified thermoplastic resins are modified by decreasing the relative quantity of the dimer, trimer, tetramer, and pentamer oligomers as compared to the corresponding unmodified thermoplastic resin polymers, resulting in a product that exhibits a greater shift in the glass transition temperature of the elastomer(s) used in tire formulations. This translates to better viscoelastic predictors of tire tread performance, such as wet grip and rolling resistance. The modified thermoplastic resins impart remarkable properties on various rubber compositions, such as tires, belts, hoses, brakes, and the like. Automobile tires incorporating the modified thermoplastic resins are shown to possess excellent results in balancing the properties of rolling resistance, tire wear, snow performance, and wet braking performance.