B60C2001/0066

RUBBER COMPOSITION FOR COVERING STEEL CORD AND PNEUMATIC TIRE USING THE RUBBER COMPOSITION
20210155778 · 2021-05-27 · ·

A rubber composition for covering a steel cord, that can improve wet heat adhesiveness while maintaining vulcanization rate is provided. The rubber composition for covering a steel cord comprises, per 100 parts by mass of a diene rubber, 1.0 to 5.0 parts by mass of an imidazole type age resister, and sulfur, wherein a sulfenamide type vulcanization accelerator is not contained, or even when contained, the amount of the sulfenamide type vulcanization accelerator is 1.5 parts by mass or less per 100 parts by mass of the diene rubber.

RUBBER COMPOSITION AND AN ARTICLE OF MANUFACTURE COMPRISING A RUBBER COMPOSITION

In a first aspect of the present invention, a rubber composition is provided, comprising at least one rubber, at least one filler, at least one thermoplastic polymer, wherein the thermoplastic polymer is a poly alkylacrylate, and wherein the alkylacrylate comprises a polycyclic substituent at its single bonded oxygen atom. In another aspect of the invention, an article of manufacture such as a tire, a power transmission belt, a hose, a track, an air sleeve, and a conveyor belt is provided which comprises the rubber composition in accordance with the first aspect.

Sulfur-crosslinkable rubber mixture and vehicle tire

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 [(R.sup.1).sub.3Si—X].sub.mS.sub.n(R.sup.2).sub.2-m, where residues R.sup.1 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 R.sup.2 is a hydrogen atom or an acyl group comprising 1 to 20 carbon atoms.

RESIN-RUBBER COMPOSITE, TIRE, AND METHOD OF PRODUCING RESIN-RUBBER COMPOSITE

A resin-rubber composite includes: a resin member that has a treated surface, to which a surface treatment by means of a plasma treatment has been applied; and a rubber member that is disposed in contact with the treated surface of the resin member and includes a rubber, a filler having a silanol group, and a silane coupling agent, with a filler content of from 30 phr to 100 phr with respect to 100 phr of the rubber, and a silane coupling agent content of from 2 parts by mass to 15 parts by mass with respect to 100 parts by mass of the filler.

RUBBER COMPOSITION

A rubber composition based at least on a functional elastomer and a reinforcing filler which comprises a carbon black is provided. The functional elastomer is a diene elastomer which comprises diene units in the cis-1,4 configuration and pendant groups of formula (I). The Y.sub.1, Y.sub.2, Y.sub.3 and Y.sub.4 symbols, which are identical or different, represent an atom or a group of atoms, and at least one of the symbols denotes an attachment to a diene unit of the elastomer. The diene units in the cis-1,4 configuration represent at least 90 mol % of the diene units of the functional elastomer, and the carbon black represents more than 50% by weight of the reinforcing filler.

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SULFUR-FREE CROSSLINKED COMPOSITION COMPRISING A PHENOLIC COMPOUND
20210087356 · 2021-03-25 ·

A rubber composition is based on at least one elastomer and at least one phenolic compound, the aromatic nucleus of said phenolic compound being substituted with at least one substituent comprising an oxygen atom, the molar mass of said phenolic compound being at most equal to 1000 g/mol, and said composition being free of molecular sulfur or comprising less than 1 phr thereof.

Use of specific aminosilyl monomers in the manufacture of rubber

The invention relates to the use of specific aminosilyl monomers in the manufacture of elastomeric polymers, especially rubber. The invention specifically relates to a process for preparing an elastomeric polymer, involving the copolymerization of the aminosilyl monomers, the elastomeric polymer thus obtained or obtainable, non-vulcanized and vulcanized polymer compositions comprising the elastomeric polymer, and articles comprising one or more components formed from the vulcanized polymer composition.

Tire

A tire including a circular tire frame containing a resin composition, the resin composition containing a polypropylene having a melting temperature of 160 C. or higher, an ethylene-propylene rubber, and a styrene-containing elastomer, in which a content of the polypropylene having a melting temperature of 160 C. or higher being 60% by mass or less with respect to the resin composition as a whole, and a content of a styrene component being 5% by mass or more with respect to the resin composition as a whole.

Composite and pneumatic tire

The present invention provides a composite that has good initial adhesion and good adhesion after high temperature and high humidity aging. Provided is a composite including: a topping rubber composition having a fatty acid content of 0.8% by mass or less; and an adherend plated with a copper-containing layer.

RESIN-METAL COMPOSITE MEMBER FOR TIRE, METHOD OF MANUFACTURING THE SAME, AND TIRE

A resin-metal composite member for a tire comprises a metal member (27) and a coating resin layer (28) that covers the metal member (27) and contains a resin composition. The resin composition includes a thermoplastic elastomer, at least one additive resin selected from an amorphous resin having an ester bond or a polyester-based thermoplastic resin, and at least one chemical selected from a carbodiimide compound, a polyfunctional epoxy compound, or a polyfunctional amino compound.