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: 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: 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: 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: The invention relates to a sulfur-crosslinkable rubber mixture, in particular for rubber-coating reinforcements in elastomer products, especially in vehicle tires, or inner components of vehicle tires, as well as to a vehicle tire. The rubber mixture comprises a diene rubber, an adhesive system, 10 to 200 phr silica, and 2 to 20 phr of a silane of the formula [(R1)3Si—X]mSn(R2)2-m, where residues R1 are identical or different alkoxy groups, cyclic dialkoxy groups, cycloalkoxy groups, phenoxy groups, aryl groups, alkyl groups, alkenyl groups, aralkyl groups, or halides, and where X is a polar organic group containing urea, m represents the value 1 or 2, n is an integer between 1 and 8, and R2 is a hydrogen atom or an acyl group comprising 1 to 20 carbon atoms.

Abstract: The invention relates to a silane, to a rubber mixture comprising the silane and to a vehicle tire comprising the rubber mixture in at least one component.

Abstract: The invention relates to a silane, to a rubber mixture comprising the silane and to a vehicle tire comprising the rubber mixture in at least one component.

Abstract: The invention relates to a sulfur-crosslinkable rubber mixture, in particular for rubber-coating reinforcements in elastomer products, especially in vehicle tires, or inner components of vehicle tires, as well as to a vehicle tire.

Abstract: The invention relates to a sulfur-crosslinkable rubber mixture, in particular for treads of vehicle tires, and to a vehicle tire. The rubber mixture contains at least the following components: at least one diene rubber and 10 to 200 phr of at least one silicic acid and 2 to 20 phf of at least one silane having general empirical formula I) [(R1)3Si—X]mSn(R2)2-m, wherein the residues R1 within a molecule can be the same or different and are alkoxy groups having 1 to 10 carbon atoms or cyclic dialkoxy groups having 2 to 10 carbon atoms or cycloalkoxy groups having 4 to 10 carbon atoms or phenoxy groups or aryl groups having 6 to 20 carbon atoms or alkyl groups having 1 to 10 carbon atoms or alkenyl groups having 2 to 20 carbon atoms or aralkyl groups having 7 to 20 carbon atoms or halides and wherein X is a polar organic group containing urea and wherein m assumes the value 1 or 2 and wherein n is an integer from 1 to 8 and wherein R2 is a hydrogen atom or an acyl group having 1 to 20 carbon atoms.

Abstract: The invention relates to a sulfur-crosslinkable rubber mixture, in particular for treads of vehicle tires, and to a vehicle tire. The rubber mixture contains at least the following components: at least one diene rubber and 10 to 200 phr of at least one silicic acid and 2 to 20 phf of at least one silane having general empirical formula I) [(R1)3Si—X]mSn(R2)2-m, wherein the residues R1 within a molecule can be the same or different and are alkoxy groups having 1 to 10 carbon atoms or cyclic dialkoxy groups having 2 to 10 carbon atoms or cycloalkoxy groups having 4 to 10 carbon atoms or phenoxy groups or aryl groups having 6 to 20 carbon atoms or alkyl groups having 1 to 10 carbon atoms or alkenyl groups having 2 to 20 carbon atoms or aralkyl groups having 7 to 20 carbon atoms or halides and wherein X is a polar organic group containing urea and wherein m assumes the value 1 or 2 and wherein n is an integer from 1 to 8 and wherein R2 is a hydrogen atom or an acyl group having 1 to 20 carbon atoms.

Abstract: A sulfur-crosslinkable rubber mixture for pneumatic tires is disclosed. The rubber mixture includes at least one diene rubber and 10 to 200 phr of at least one silica and 2 to 20 phf of at least one silane having the general empirical formula (I) [(R1)3Si—X]mSn(R2)2-m. The R1 radicals within a molecule may be the same or different and are alkoxy groups having 1 to 10 carbon atoms or cyclic dialkoxy groups having 2 to 10 carbon atoms or cycloalkoxy groups having 4 to 10 carbon atoms or phenoxy groups or halides, and where m assumes the value of 1 or 2 and where n is an integer from 1 to 8 and where R2 is a hydrogen atom or an acyl group having 1 to 20 carbon atoms and where X is an organic spacer group having 3 to 30 carbon atoms and containing at least one organic radical.