A disclosed crosslinkable rubber composition includes a carboxyl group-containing nitrile rubber (A) containing a halogen or a halogen compound, and having an iodine value of 120 or less; a polyamine-based crosslinking agent (B); and a metal-based acid acceptor (C).

A rubber composition for a tire tread chimney component includes a sulfur-vulcanizable elastomer and an electrically conductive polymer. The rubber composition is further defined by an absence of electrically conductive carbon black. The sulfur-vulcanizable elastomer is selected from the group consisting of natural rubber, polybutadiene, polyisoprene, styrene butadiene rubber, nitrile rubber, and combinations thereof. The sulfur-vulcanizable elastomer and the electrically conductive polymer are substantially evenly mixed together. In the tire, and upon curing, the tire tread chimney component provides a dissipative pathway for static electricity from the tire to the ground in operation.

A rubber composition for a tire tread chimney component includes a sulfur-vulcanizable elastomer and an electrically conductive polymer. The rubber composition is further defined by an absence of electrically conductive carbon black. The sulfur-vulcanizable elastomer is selected from the group consisting of natural rubber, polybutadiene, polyisoprene, styrene butadiene rubber, nitrile rubber, and combinations thereof. The sulfur-vulcanizable elastomer and the electrically conductive polymer are substantially evenly mixed together. In the tire, and upon curing, the tire tread chimney component provides a dissipative pathway for static electricity from the tire to the ground in operation.

A rubber composition includes a carboxyl group-containing nitrile rubber of which iodine value is 120 or less, a polyetherester plasticizer, and a metallic compound, wherein an amount of stearic acid adsorbed by the metallic compound is 80 mg/g or more and 300 mg/g or less.

A rubber composition includes a carboxyl group-containing nitrile rubber of which iodine value is 120 or less, a polyetherester plasticizer, and a metallic compound, wherein an amount of stearic acid adsorbed by the metallic compound is 80 mg/g or more and 300 mg/g or less.

A rubber composition includes a carboxyl group-containing nitrile rubber of which iodine value is 120 or less, a polyetherester plasticizer, and a metallic compound, wherein an amount of stearic acid adsorbed by the metallic compound is 80 mg/g or more and 300 mg/g or less.

A hydraulic hose includes: an innermost layer tube encircling at least one channel. The innermost layer tube has a self-sealing material composition including an elastomeric material and a polyalkyleneimine. In an embodiment, the polyalkyleneimine is selected from polyethyleneimine, polypropyleneimine, polybutyleneimine, and polypentyleneimine. In an embodiment, the polyalkyleneimine is linear or branched.

A hydraulic hose includes: an innermost layer tube encircling at least one channel. The innermost layer tube has a self-sealing material composition including an elastomeric material and a polyalkyleneimine. In an embodiment, the polyalkyleneimine is selected from polyethyleneimine, polypropyleneimine, polybutyleneimine, and polypentyleneimine. In an embodiment, the polyalkyleneimine is linear or branched.

An object of the present invention is to provide a golf club grip having excellent abrasion resistance and a high coefficient of friction. The present invention provides a golf club grip comprising an outermost layer, wherein at least a part of the outermost layer is formed from a rubber composition containing (A) a base rubber and (B) carbon black, (B) the carbon black has a DBP absorption amount in a range from 50 cm.sup.3/100 g to 140 cm.sup.3/100 g and a CTAB specific surface area in a range from 30 m.sup.2/g to 160 m.sup.2/g, a product (amountDBP absorption amount) obtained by multiplying an amount (g) of (B) the carbon black in the rubber composition with respect to 100 g of (A) the base rubber by the DBP absorption amount (cm.sup.3/100 g) ranges from 380 to 2600, a product (amountCTAB specific surface area) obtained by multiplying the amount (g) of (B) the carbon black in the rubber composition with respect to 100 g of (A) the base rubber by the CTAB specific surface area (m.sup.2/g) ranges from 425 to 3000, and the part formed from the rubber composition has tan (30 C., 10 Hz) in a range from 0.100 to 0.280.

An object of the present invention is to provide a golf club grip having excellent abrasion resistance and a high coefficient of friction. The present invention provides a golf club grip comprising an outermost layer, wherein at least a part of the outermost layer is formed from a rubber composition containing (A) a base rubber and (B) carbon black, (B) the carbon black has a DBP absorption amount in a range from 50 cm.sup.3/100 g to 140 cm.sup.3/100 g and a CTAB specific surface area in a range from 30 m.sup.2/g to 160 m.sup.2/g, a product (amountDBP absorption amount) obtained by multiplying an amount (g) of (B) the carbon black in the rubber composition with respect to 100 g of (A) the base rubber by the DBP absorption amount (cm.sup.3/100 g) ranges from 380 to 2600, a product (amountCTAB specific surface area) obtained by multiplying the amount (g) of (B) the carbon black in the rubber composition with respect to 100 g of (A) the base rubber by the CTAB specific surface area (m.sup.2/g) ranges from 425 to 3000, and the part formed from the rubber composition has tan (30 C., 10 Hz) in a range from 0.100 to 0.280.