| 摘要 |
PROBLEM TO BE SOLVED: To stabilize operability during solidification by suppressing self-adhesion of solidified clam when recovering a conjugated diene rubber from a polymer solution and enhance operability during drying by preventing generation of a large amount of fine powders when the clam is dried.SOLUTION: In a reaction process, glass transition temperature and coupling percentage of a conjugated diene rubber obtained by coupling a polymer having an active terminal by using a coupling agent and terminal modifying a remaining polymer having the active terminal with a special compound is controlled in a specific range and dried with a porous clam shape.SELECTED DRAWING: None |
