変性高シスポリジエンポリマー、関連する方法及びゴム組成物

Title:

変性高シスポリジエンポリマー、関連する方法及びゴム組成物

Document Type and Number:

Japanese Patent JP7238154

Kind Code:

B2

Abstract:

Disclosed herein are a modified high cis polydiene polymer, processes for preparing the modified high cis polydiene polymer, and tire rubber compositions containing the modified high cis polydiene polymer. The processes make use of a functionalizing compound of formula I or formula II and a coupling agent to prepare the modified high cis polydiene polymer from a quantity of conjugated diene monomer polymerized using a lanthanide-based catalyst system. The modified high cis polydiene polymer includes at least one polymer chain having a residue from the functionalizing compound and a residue from the coupling agent and can be utilized in tire rubber compositions in combination with other ingredients such as fillers.

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Inventors:

Chin Zanchuan
Yang Yuen Young

Application Number:

JP2021553836A

Publication Date:

March 13, 2023

Filing Date:

March 10, 2020

Export Citation:

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Assignee:

Bridgestone Corporation

International Classes:

C08F8/42; B60C1/00; C08F4/54; C08F4/606; C08F36/04; C08K3/013; C08K3/04; C08K3/36; C08L9/00

Domestic Patent References:

JP2018514639A

Foreign References:

WO1995004090A1
WO2018088919A1
WO2019118688A1

Attorney, Agent or Firm:

Patent Attorney Corporation Otani Patent Office

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