摘要:
The present invention is directed to a method of making a rubber composition, comprising the steps of mixing cellulose fibers and water to form a first mixture; mixing the first mixture with an aqueous diene-based elastomer latex to form a second mixture comprising cellulose fibers, elastomer, and water; and separating the cellulose fibers and elastomer from the water to form a elastomer/cellulose masterbatch.
摘要:
The present invention is directed to a pneumatic tire comprising at least one component, the at least one component comprising a rubber composition, the rubber composition comprising: at least one diene based elastomer; and a reinforcing amount of at least two fillers comprising carboxymethylcellulose and at least one of silica and carbon black.
摘要:
A device for measuring the elastic-viscous properties of objects, in particular objects made of an elastomer material such as rubber, has a measurement body movable in relation to a holder and having a measurement head that can be set on a test object, means for moving the measurement body back and forth and means for measuring the path of displacement of the measurement head and/or the force that acts on the measurement head during the reciprocating movement of the measurement body. In order to diversify the possible uses of the device and to simplify the measurement process, the measurement body is mounted in a freely movable housing with a passage for the measurement head and a bearing surface that can be set on the test object.
摘要:
The present invention relates to a pneumatic tire comprising at least one component, the at least one component including a rubber composition, the rubber composition including at least one diene based rubber; and at least one metal organic framework material including divalent zinc and a multidentate organic ligand.
摘要:
The invention relates to preparation of a rubber composition containing silica and carbon black reinforcement, the resultant rubber composition and tire with component comprised of such rubber composition.
摘要:
An unsaturated, elastomeric, asymmetrically coupled block copolymer of the formula:(A--B).sub.n --X--(B).sub.m,wherein block A is a block of polybutadiene having an 8 to 60% content of uniformly distributed vinyl groups and block B is a homopolymer of isoprene or a copolymer of at leat 10% isoprene units with 0 to 60% butadiene units and up to 45% styrene units and X is a radical of a coupling agent, and (m-n).gtoreq.0 while (m+n) ranges from 3 to 25.
摘要:
A rubber mixture vulcanizable with sulphur, a tire tread manufactured from it and also tires with a vulcanized tread are proposed. The rubber mixture contains in each case 100 parts by weight of elastomers, 20 to 80 parts by weight of a copolymer of conjugated diene and vinyl aromatic compound with very low long chain branching manufactured by solution polymerization in a hydrocarbon solvent, 10 to 50 parts by weight of polybutadiene with very low long chain branching, 10 to 30 parts by weight of polyisoprene with a 3,4 bond content of 50 to 70% by weight and 30 to 100 parts by weight of silica as filler material. Through the special combination of the three elastomers with silica as a filler material one obtains an easily processable mixture which leads to vulcanized tire treads with improved grip on wet and dry surfaces.
摘要:
A caoutchouc mixture vulcanisable with sulphur, tire treads manufactured therefrom and also tires with these vulcanised tire treads are proposed. The caoutchouc mixture contains 30 to 100 parts by weight of isoprene-butadiene copolymer, 0 to 70 parts by weight of one or more further elastomers, 20 to 90 parts by weight of silica as a filler material, customary additives and also a vulcanisation system, with all parts by weight being related to 100 parts by weight of total elastomers. This caoutchouc mixture delivers tire treads with good resistance to abrasion and a low loss factor which is correlated with a low rolling resistance.
摘要:
ABC block copolymers on the basis of butadiene, isoprene and optionally styrene, are provided by a polymerization process wherein the resultant block copolymer comprises:about 40 to 75 wt % of a block A based on butadiene (uniformly distributed vinyl group content less than about 15 wt %),up to about 25 wt % of a block B based on butadiene and isoprene (vinyl content less than about 15 wt %) or based on butadiene (vinyl content more than about 75 wt %)about 20 to 55 wt % of a block C based on butadiene and isoprene (vinyl content more than about 75 wt %). The ABC block copolymers are useful for the production of tire treads.
摘要:
Preparations for the sealing of tires with punctures are proposed, which contain the latex of synthetic isoprene rubbers or the latex of natural rubber together with latexes of synthetic isoprene rubbers, acrylate rubbers and/or methacrylate rubbers. The sealing preparations can contain an adhesive resin compatible with the latexes from the group comprising polyvinyl esters, polyvinyl alcohol and/or polyvinyl pyrrolidone, and also a pigment, with natural rubber latex, synthetic rubber latexes or their mixtures being used as rubber latex. Furthermore, an apparatus is described for the sealing and pumping up of the tire using an airbag inflation charge and also tires with an integrated sealing preparation.