Patent ID: 11873364
Assignee: ZS ELASTOMERS CO., LTD.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC B  C  Y | IPC B  C

Claim 0:
1. A method for producing a conjugated diene rubber, comprising:
a first step of obtaining a conjugated diene polymer chain having an active end by polymerizing a monomer comprising a conjugated diene compound and a vinyl compound having a functional group interactive with silica using a polymerization initiator in an inert solvent;
a second step of reacting a siloxane compound with the active end of the conjugated diene polymer chain having the active end; and
a third step of reacting a hydrocarbyloxysilane compound with the conjugated diene polymer chain with which the siloxane compound is reacted that is obtained in the second step,
wherein the functional group interactive with silica is at least one selected from a group consisting of a nitrogen atom-containing functional group, a silicon atom-containing functional group, and an oxygen atom-containing functional group.