Method for producing carbon fiber-containing polybutadiene composition, carbon fiber-containing polybutadiene composition, carbon fiber-containing rubber composition, method for producing belt rubber composition, belt rubber composition and rubber belt

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a carbon fiber-containing polybutadiene composition excellent in fatigue properties, tensile properties and the like with a small carbon fiber content. SOLUTION: The method for producing a carbon fiber-containing polybutadiene composition of the present invention comprises a 1-1 step of preparing a mixture of 1,3-butadiene and an inert organic solvent, and a 1-1 step. Water, a catalyst composed of an organoaluminum compound and a soluble cobalt compound, or a catalyst composed of an organoaluminum compound, a nickel compound and a fluorine compound is added to the mixture thus prepared to polymerize the 1,3-butadiene with cis-1,4. 1-2 step, a 1-3 step of polymerizing the 1,3-butadiene in the polymerization reaction mixture obtained in the 1-2 step with syndiotactic-1,2, and the 1-step It is characterized by including a polymerization reaction mixture or a polybutadiene composition obtained through 3 steps, and 1-4 steps of mixing the carbon fiber (a). [Selection diagram] None