Title:
変性共役ジエン系ゴムの製造方法
Document Type and Number:
Japanese Patent JP6964027
Kind Code:
B2
Abstract:
To provide a method for manufacturing a modified conjugated diene rubber capable of providing a rubber crosslinked article high in tensile strength and excellent in low heat generation property and operation stability.SOLUTION: There is provided a manufacturing method of a modified conjugated diene rubber having a first process for polymerizing a monomer containing at least a conjugated diene compound by using an alkali metal aromatic compound having 2 carbon atoms directly bound to an alkali metal atom and an aromatic ring in a molecule as a polymerization initiator to obtain a conjugated diene rubber having an active terminal, a second process for conducting a coupling reaction of the conjugated diene rubber having the active terminal by using a 2-functional coupling agent having at least one protective group of a hydroxyl group in a molecule, and a third process for reacting a modifier having one atom capable of reaction with the active terminal or one reaction group in a molecule with the active terminal of the conjugated diene rubber on which the coupling reaction is conducted to obtain the modified conjugated diene rubber.SELECTED DRAWING: None
Inventors:
Takeshi Sugimura
Application Number:
JP2018054073A
Publication Date:
November 10, 2021
Filing Date:
March 22, 2018
Export Citation:
Assignee:
Zeon Corporation
zs Elastomer Co., Ltd.
zs Elastomer Co., Ltd.
International Classes:
C08C19/25; B60C1/00; C08F4/46; C08F36/04; C08K3/36; C08L15/00
Domestic Patent References:
| JP2016530361A | ||||
| JP2004018795A |
Foreign References:
| WO2015010710A1 |
Attorney, Agent or Firm:
Eternal patent business corporation