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) [(R 1 ) 3 Si—X] m S n (R 2 ) 2-m , wherein the residues R 1 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 R 2 is a hydrogen atom or an acyl group having 1 to 20 carbon atoms.

Sulfur-crosslinkable rubber mixture and vehicle tire

The invention relates to a star-shaped isoprene-b-butadiene-styrene terpolymer and a preparation method thereof The terpolymer has a structure of (PI-S/B)n-C, wherein PI is polyisoprene, S/B is a butadiene-styrene random copolymer or a butadiene-styrene tapered block copolymer, C is a star-shaped coupling agent residue, n represents an average arm number and is no less than 3, the number-average molecular weight of the terpolymer is 5*10 to 5*10 , the number-average molecular weight of the terpolymer arm PI-S/B is 1*10 to 1*10 , the mass of PI in the terpolymer is 20 to 90%, the mass of S/B in the terpolymer is 10 to 80%, the mass of styrene in S/B is 5 to 80%, and the mass of butadiene in S/B is 20 to 95% After hydrogenation, the terpolymer provided by the invention is a viscosity index improver with excellent performance, has strong thickening capability and good low temperature performance and can satisfy demands for polymer performance in different occasions

Star-shaped isoprene-b-butadiene-styrene terpolymer and preparation method thereof

Preparation method of star-shaped solution polymerized butadiene styrene rubber with wide molecular weight distribution

The invention discloses terpolymer rubber with medium/high side group content and a preparation method and applications thereof. The invention relates to a method which uses a bistetrahydrofuran compound as the structural modifier to synthesize monovinylarene/conjugated diene 1/conjugated diene 2 terpolymer rubber through solution polymerization, the monovinylarene/conjugated diene 1/conjugated diene 2 terpolymer rubber synthesized by the method and products based on the copolymer rubber, such as tires. The copolymer rubber synthesized by the method has good wet-skid resistance and low rolling resistance.

Terpolymer rubber with medium/high side group content and preparation method and applications thereof

The invention discloses a styrene-butadiene copolymer as well as a preparation method and an application of the styrene-butadiene copolymer. The copolymer is a triblock structure of styrene-butadiene-styrene, wherein the intermediate block is a block structure based on the random copolymerization of styrene and butadiene and combined with styrene-butadiene-styrene; the copolymer has a number-average molecular weight of 120,000-170,000 and a molecular weight distribution of 1.01-1.10; the mass fraction of styrene is 35-50%; and the mass fraction of butadiene is 50-65%. The invention further provides a preparation method of the copolymer and an application of the copolymer as a modified additive of road asphalt.

Styrene-butadiene copolymer as well as preparation method and application thereof

The invention relates to a terpolymer of mono-ethylene arene, conjugated diene 1 and conjugated diene 2, preparation method thereof and application thereof. The obtained copolymer rubber has good anti-wet slipping performance and low rolling resistance. The terpolymer has greatly low rolling resistance and fine anti-wet slipping performance and the tan Delta is below 0.071 at 60 degree and the tan Delta is above 0.523 at 0 degree, wherein the ratio of the tan Delta at 0 degree to the tan Delta at 60 degree is above 7. The invention can be widely used in rubber articles field such as tyre.

Terpolymer rubber having low rolling resistance and high wet-sliding resistant performance, preparation and uses thereof

The invention relates to a method for synthesizing a ternarypolymerization rubber of mono vinyl aromatic hydrocarbon, conjugated diene 1 and conjugated diene 2 through solution polymerization by taking compounded asymmetric ether and anion surface active agent serving as a structural regulator, the ternarypolymerization rubber of mono vinyl aromatic hydrocarbon, conjugated diene 1 and conjugated diene 2 prepared by the method and a product based on the copolymer rubber, such as a tyre. The copolymer rubber prepared by the method has high wet skid resistance and low rolling resistance.

Method for preparing ternarypolymerization rubber and application thereof

Ternary polymerization rubber with star type block structure, and preparation method and application thereof

The present invention provides a functionalized diolefin polymer preparation method, which comprises that a diolefin polymer containing at least a conjugated diolefin structure unit contacts a modifier, a stabilizer and an initiator in an inert atmosphere, such that the modifier is chemically bonded to the diolefin polymer through the contacting condition, wherein the average molecular weight of the diolefin polymer is 50000-1000000, the content of the conjugated diolefin structure unit having the double bond on the side chain is 15-85 wt% by adopting the weight of the conjugated diolefin structure unit as the reference, the modifier is at least one selected from mercaptosilane having a structure represented by a formula (I), a substance concurrently containing a mercapto group and a hydroxyl group in the molecule, and a substance concurrently containing a mercapto group and a carboxyl group, and the stabilizer is one or a plurality of materials selected from an arylamine type antioxidant, a hindered phenol type antioxidant and a phosphite antioxidant. According to the present invention, with the method, the conversion rate of the modifier is substantially and completely achieved, and the relation between the wet skid resistance and the rolling resistance can be effectively improved. The formula (I) is defined in the specification.

Functionalized elastomer, modified asphalt, and functionalized elastomer preparation method

The invention provides a modified alkadiene polymer, a preparation method of the modified alkadiene polymer and application of the modified alkadiene polymer as base rubber. A molecular chain of the modified alkadiene polymer comprises a monovinyl aromatic hydrocarbon structure unit, a conjugated alkadiene structure unit and a silane coupling agent shown in a formula (I), wherein the number-average molecular weight of the modified alkadiene polymer is 50000-1000,000; R1-R4 is C1-C20 linear chain or branched chain alkyl or heteroatom-containing C1-C20 linear chain or branched chain alkyl; the heteroatoms are selected from one or more of halogen, oxygen, sulphur, silicon and phosphorus. The modified alkadiene polymer can be used for effectively balancing the relation between wet-skid resistance and rolling resistance and can also be used for improving unpleasant odor generated by using the silane coupling agent in the rubber mixing process. The formula (I) is as shown in the description.

Modified alkadiene polymer as well as preparation method and application thereof

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