Patent ID: 11884760
Assignee: ASAHI KASEL KABUSHIKI KAISHA
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 2:
3. The production method for the branched conjugated diene-based polymer according to claim 1, wherein the styrene derivative is a compound represented by the following formula (1) and/or formula (2):, wherein R1 represents any one selected from the group consisting of a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, and an aryl group having 6 to 20 carbon atoms, and may have a branch structure in a part thereof;
X1, X2 and X3 represent a single bond, or an organic group containing any one selected from the group consisting of carbon, hydrogen, nitrogen, sulfur, and oxygen,
Y1, Y2 and Y3 represent any one selected from the group consisting of an alkyl group having 1 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, and a halogen atom; and they are respectively independent and may be the same or different.