Abstract: The present invention relates to a method of producing a SiC—Si composite component. The method includes preparing a first molded body containing SiC particles by a 3D printing method, wherein the first molded body has a first average pore diameter M1; forming a second molded body, in which the first molded body and a dispersion containing carbon particles are brought into contact so that the pores are impregnated with the carbon particles, wherein the carbon particles have a secondary particle having an average particle diameter M2, and the carbon particles satisfy the following formula: M2?M1/10; and forming a SiC—Si composite component by carrying out that the second molded body is impregnated with a metallic si and is reactively sintered; wherein the content of Si is in the range of 5% by mass to 40% by mass in the SiC—Si composite component.

Abstract: An object of the present invention is to provide a rubber composition with excellent low heat build-up properties, the rubber composition comprising a filler and at least one compound selected from the group consisting of a diene rubber component, a compound represented by formula (1), and a compound represented by formula (2).

Abstract: Provided is a rubber composition comprising: a rubber component containing diene-based rubber; a filler, and a compound represented by formula (I) below: (wherein: A is an aryl group and has at least two polar groups, which may be the same or different from each other; R1 and R2 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.

Abstract: A rubber composition comprising at least one member selected from the group consisting of compounds represented by the following formulas (1) to (7) and 3-methyl-5-pyrazolone, and a rubber component: wherein the R group is a hydrazide group, an N?-alkylidene hydrazide group, an N-allyl carbamoyl group, a 3-carboxyl acryloyl group, a hydrazine carboxyamino group, a thiocarboxyl group, a thiol group, or a hydrogen atom; R4 is a sulfur atom or an oxygen atom; R5 is a thiol group or a hydroxy group; R6 is a C1-4 alkylene group; R7 is an alkyl group, an aralkyl group, an aryl group, or a heterocyclic group; R8 is a hydrogen atom or an amino group; R9 is a heteroatom; and R10 is a heterocyclic group.

Abstract: An additive for rubber that enables a rubber composition to have excellent low heat generating property and processability, a rubber composition containing the additive for rubber, and a tire using the same are provided.

Abstract: An additive for rubber that enables a rubber composition to have excellent low heat generating property and processability, a rubber composition containing the additive for rubber, and a tire using the same are provided.

Abstract: Provided is a rubber composition comprising: a rubber component containing diene-based rubber; a filler, and a compound represented by formula (I) below: (wherein: A is an aryl group and has at least two polar groups, which may be the same or different from each other; R1 and R2 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.