| abstract |
PROBLEM TO BE SOLVED: To provide a rubber composition having good workability, dimensional stability, etc., and vulcanized rubber excellent in abrasion resistance, tensile strength, etc., and useful as belts, hoses, tires, and the like. A crosslinked rubber particle for obtaining such a rubber composition is provided. SOLUTION: (1) As a repeating unit, (a) 30 to 94.89% by mass of a conjugated diene unit, (b) 5 to 69.89% by mass of an aromatic vinyl unit, and (c) at least 2%. Monomer units having one polymerizable unsaturated group in an amount of 0.01 to 1 0% by weight, and (d) one polymerizable unsaturated group, an amino group, a hydroxyl copolymer and an epoxy group, and (e) It contains 0.1 to 30% by mass of a monomer unit having one polymerizable unsaturated group and a carboxylic acid group, and has a particle size of 10 to 50%. A rubber composition comprising 0 nm, crosslinked rubber particles having a toluene insoluble content of 80% by mass or more, and [2] various non-crosslinked rubber components having a toluene insoluble content of less than 20% by mass is obtained. |