A rubber composition is based on at least one diene elastomer, a reinforcing filler, a crosslinking system and a hydrocarbon-based resin. The hydrocarbon-based resin has a number-average molecular weight (Mn) of between 700 and 1000 g/mol, an average molecular weight Mz of greater than 6000 g/mol and a polydispersity index (PI) of greater than 2.4.

A rubber composition is based on at least one diene elastomer, a reinforcing filler, a crosslinking system and a hydrocarbon-based resin. The hydrocarbon-based resin has a number-average molecular weight (Mn) of between 700 and 1000 g/mol, an average molecular weight Mz of greater than 6000 g/mol and a polydispersity index (PI) of greater than 2.4.

Recycled elements and/or renewable resources, such as recycled carbon black or recycled carbon black and recycled particulate rubber, are incorporated into a rubber composition. The rubber composition can be used to manufacture tires or various tire components including tire subtreads.

Recycled elements and/or renewable resources, such as recycled carbon black or recycled carbon black and recycled particulate rubber, are incorporated into a rubber composition. The rubber composition can be used to manufacture tires or various tire components including tire subtreads.

Crosslinked aminosiloxanes obtainable by reaction of identical or different aminosiloxanes with identical or different epoxide components which are water-soluble hydrocarbons, the hydrocarbons comprising oxygen as well as carbon, and optionally further elements selected from nitrogen, sulphur and phosphorus, the hydrocarbon having on average more than one terminal epoxy group, the epoxy group being a carbooxirane radical, and, further, not more than 50% of all the amino groups having undergone reaction with an epoxide group.

Crosslinked aminosiloxanes obtainable by reaction of identical or different aminosiloxanes with identical or different epoxide components which are water-soluble hydrocarbons, the hydrocarbons comprising oxygen as well as carbon, and optionally further elements selected from nitrogen, sulphur and phosphorus, the hydrocarbon having on average more than one terminal epoxy group, the epoxy group being a carbooxirane radical, and, further, not more than 50% of all the amino groups having undergone reaction with an epoxide group.

A method of preparing a hydrogel product including crosslinked glycosaminoglycan molecules, said method including: i) providing a glycosaminoglycan crosslinked by amide bonds, wherein the crosslinked glycosaminoglycans include residual amine groups; and ii) acylating residual amine groups of the crosslinked glycosaminoglycans provided in i) to form acylated crosslinked glycosaminoglycans.

A method of preparing a hydrogel product including crosslinked glycosaminoglycan molecules, said method including: i) providing a glycosaminoglycan crosslinked by amide bonds, wherein the crosslinked glycosaminoglycans include residual amine groups; and ii) acylating residual amine groups of the crosslinked glycosaminoglycans provided in i) to form acylated crosslinked glycosaminoglycans.

Provided is a rubber composition comprising: a rubber component containing diene-based rubber; a filler, and a compound represented by formula (I) below: ##STR00001##
(wherein: A is an aryl group and has at least two polar groups, which may be the same or different from each other; R.sup.1 and R.sup.2 are each independently at least one substituent selected from a group consisting of a hydrogen atom, an acyl group, an amide group, an alkyl group, a cycloalkyl group, and an aryl group; and further, the substituent may include one or more of O, S, and N atoms), so as to provide a rubber composition excellent in low heat generating property and wear resistance.

Provided is a rubber composition comprising: a rubber component containing diene-based rubber; a filler, and a compound represented by formula (I) below: ##STR00001##
(wherein: A is an aryl group and has at least two polar groups, which may be the same or different from each other; R.sup.1 and R.sup.2 are each independently at least one substituent selected from a group consisting of a hydrogen atom, an acyl group, an amide group, an alkyl group, a cycloalkyl group, and an aryl group; and further, the substituent may include one or more of O, S, and N atoms), so as to provide a rubber composition excellent in low heat generating property and wear resistance.