Abstract: An object of the present invention is to provide a golf ball having excellent color development stability. The present invention provides a golf ball comprising a core and a cover covering the core, wherein the cover is formed from a resin composition containing a first base resin and a fluorescent pigment, and the fluorescent pigment has a number-based cumulative median size of 2.5 ?m or more.

Abstract: Provided is a tire which provides improved overall performance in terms of wet grip performance and abrasion resistance. Included is a tire including a tread containing a rubber composition, the rubber composition containing at least one rubber component and at least one silane coupling agent having a sulfur content of 10% by mass or higher, the rubber composition having an ash content of 36% by mass or higher, the rubber composition having a sulfur content of 1.0% by mass or lower when measured after acetone extraction.

Abstract: An object of the present invention is to provide a golf ball having excellent color development stability. The present invention provides a golf ball comprising a core and a cover covering the core, wherein the cover is formed from a resin composition containing a first base resin and a fluorescent pigment, and the fluorescent pigment has a number-based cumulative median size of 2.5 ?m or more.

Abstract: An unvulcanized tire includes an inner member including a rubber composition. The composition includes rubber component, carbon black and sulfide compound. The rubber component includes isoprene-based rubber, the sulfide compound of formula (I), where R1 represents a hydrogen atom, a linear or branched alkyl or alkenyl group, or a cyclic alkyl or alkenyl group, A represents O, S, NH or NR2, R2 represents a linear or branched alkyl or alkenyl group, or a cyclic alkyl or alkenyl group, n represents a whole number of 1 to 6, and x represents a whole number of 1 to 4, the carbon black includes carbon black A having nitrogen adsorption specific surface area of less than 50 m2/g in content of from 5 to 55 parts by mass and carbon black B having nitrogen adsorption specific surface area of 50 m2/g or greater in content of from 0 to 30 parts by mass.