Abstract: A rubber composition comprising a compound having one or more groups represented by formula (X) and a rubber component is provided. wherein ring W1 represents a cyclic group having at least one selected from the group consisting of —C(?O)— and —C(?S)—; N10 represents a nitrogen atom; the at least one selected from the group consisting of —C(?O)— and —C(?S)— in the ring W1 and N10 are conjugated; and Z1 represents —O— or —S—.

Abstract: The present invention provides a rubber composition obtained by kneading a compound represented by the formula (I), a rubber component and a filler, and the like: wherein the groups in the formula (I) are as described in the DESCRIPTION.

Abstract: A process for producing particles, the process including pulverizing particles of a compound represented by formula (I) with a median diameter (50% D) of over 100 ?m by using a pulverizer in the presence of at least one member selected from the group consisting of silica, talc and clay, to obtain particles of the compound represented by formula (I) with a median diameter (50% D) of 100 ?m or less, in formula (I), R1 and R2 each independently represent a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, or alternatively, R1 and R2 are inked to each other to form a ring together with the nitrogen atom to which they are bound, m represents an integer of 2 to 9, Mn+ represents H+ or an n-valent metal ion, and n represents an integer of 1 or 2.

Abstract: A rubber composition comprising a compound having one or more groups represented by formula (X) and a rubber component is provided. wherein ring W1 represents a cyclic group having at least one selected from the group consisting of —C(?O)— and —C(?S)—; N10 represents a nitrogen atom; the at least one selected from the group consisting of —C(?O)— and —C(?S)— in the ring W1 and N10 are conjugated; and Z1 represents —O— or —S—.

Abstract: A rubber composition comprising a hydrate of a compound represented by formula (I-2) or a salt thereof; or a methanol solvate of a compound represented by formula (I) or a salt thereof.

Abstract: A rubber composition obtained by kneading at least one selected from the group consisting of (A1), (B1), (C1) and (D1), a rubber component and a filler, and a method of improving the viscoelastic property of vulcanized rubber, comprising a first step of kneading at least one selected from the group consisting of (A1), (B1), (C1) and (D1), a rubber component, a filler and a sulfur component and a second step of thermally treating the kneaded material obtained in the previous step.

Abstract: A rubber composition obtained by kneading at least one selected from the group consisting of (A1), (B1), (C1) and (D1), a rubber component and a filler, and a method of improving the viscoelastic property of vulcanized rubber, comprising a first step of kneading at least one selected from the group consisting of (A1), (B1), (C1) and (D1), a rubber component, a filler and a sulfur component and a second step of thermally treating the kneaded material obtained in the previous step. (A1): a compound represented by formula (I) (B1): a salt of a compound represented by formula (I) (C1): a solvate of a compound represented by formula (I) (D1): a solvate of a salt of a compound represented by formula (I).

Abstract: A method for lowering the dynamic-to-static modulus ratio of vulcanized rubber, the method comprising a first step of kneading a rubber component, a filler and a compound represented by formula (I) or a salt thereof, a second step of kneading the kneaded mixture obtained in the first step, a sulfur component and a vulcanization accelerator, and a third step of thermally treating the kneaded mixture obtained in the second step, in formula (I), n represents an integer of 0 to 10. The compound represented by formula (I) or a salt thereof is preferably S-(3-aminopropyl)thiosulfuric acid or a salt thereof.

Abstract: A process for producing particles, the process including pulverizing particles of a compound represented by formula (I) with a median diameter (50% D) of over 100 ?m by using a pulverizer in the presence of at least one member selected from the group consisting of silica, talc and clay, to obtain particles of the compound represented by formula (I) with a median diameter (50% D) of 100 ?m or less, in formula (I), R1 and R2 each independently represent a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, or alternatively, R1 and R2 are inked to each other to form a ring together with the nitrogen atom to which they are bound, m represents an integer of 2 to 9, Mn+ represents H+ or an n-valent metal ion, and n represents an integer of 1 or 2.

Abstract: Use of S-(3-aminopropyl)thiosulfuric acid and/or a metal salt thereof for improving the viscoelastic properties of a vulcanized rubber.

Abstract: A rubber composition obtained by kneading at least one selected from the group consisting of (A1), (B1), (C1) and (D1), a rubber component and a filler, and a method of improving the viscoelastic property of vulcanized rubber, comprising a first step of kneading at least one selected from the group consisting of (A1), (B1), (C1) and (D1), a rubber component, a filler and a sulfur component and a second step of thermally treating the kneaded material obtained in the previous step.

Abstract: A process for producing a vulcanized rubber composition that includes S-(3-aminopropyl)thiosulfuric acid, a rubber component, a filler, a sulfur component, and a vulcanization accelerator, the process comprising the following Steps (A), (B) and (C); (A): a step of kneading S-(3-aminopropyl)thiosulfuric acid having a median diameter (50% D) of 10 ?m to 100 ?m, a rubber component and a filler, (B): a step of kneading the kneaded mixture obtained in Step (A), a sulfur component and a vulcanization accelerator, and (C): a step of subjecting the kneaded mixture obtained in Step (B) to thermal treatment.

Abstract: A method for using S-(3-aminopropyl)thiosulfuric acid and/or a metal salt thereof added to a rubber component as a raw material of a vulcanized rubber composition, comprising a pre-kneading step A of kneading a rubber component, a filler, S-(3-aminopropyl)thiosulfuric acid and/or a metal salt thereof, a post-kneading step B of kneading the kneaded substance A obtained in the pre-kneading step A, a sulfur component, and a vulcanization accelerator having a weight over the weight of the above-described sulfur component, and a thermal treatment step C of thermally-treating the kneaded substance B obtained in the post-kneading step B to obtain a vulcanized rubber composition, wherein durability is imparted to the vulcanized rubber composition;

Abstract: A process for manufacturing a vulcanized rubber comprising the first step of kneading S-(3-aminopropyl)thiosulfuric acid and/or a metal salt thereof, a rubber component, a filler and a sulfur component to obtain a kneaded product, and the second step of subjecting the kneaded product obtained in the first step to a heat treatment.

Abstract: Use of S-(3-aminopropyl)thiosulfuric acid and/or a metal salt thereof for improving the viscoelastic properties of a vulcanized rubber.