Method for producing carbon fiber-containing conjugated diene polymer composition, carbon fiber-containing conjugated diene polymer composition, carbon fiber-containing rubber composition, method for producing tire rubber composition, tire rubber composition and tire

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a carbon fiber-containing conjugated diene polymer composition having excellent physical properties (specifically, fatigue characteristics and abrasion resistance) with a small carbon fiber content, and a rubber composition for a tire. A carbon fiber-containing conjugated diene polymer composition of the present invention polymerizes the conjugated diene compound by bringing a conjugated diene compound into contact with a carbon fiber carrying a polymerization catalyst for the conjugated diene compound on its surface (a ) It has a process. Further, the method for producing a rubber composition for a tire of the present invention comprises a step (a) of polymerizing the conjugated diene compound by bringing a conjugated diene compound into contact with a carbon fiber carrying a polymerization catalyst of the conjugated diene compound on its surface. A step (b) of blending the carbon fiber-containing conjugated diene polymer composition obtained in the step (a) with another diene rubber, and a rubber reinforcing material in the carbon fiber-containing conjugated diene polymer composition. And (c) step of blending. [Selection diagram] None