Title:
METHOD FOR PRODUCING MODIFIED CONJUGATED DIENE POLYMER, MODIFIED CONJUGATED DIENE POLYMER, POLYMER COMPOSITION, CROSSLINKED BODY AND TIRE
Document Type and Number:
WIPO Patent Application WO/2020/179705
Kind Code:
A1
Abstract:
According to the present invention, a modified conjugated diene polymer is produced by a method wherein a conjugated diene polymer having an active end, which is obtained by polymerizing a monomer that contains a conjugated diene compound in the presence of an alkali metal compound, and a compound (A) represented by formula (1) are reacted with each other. In formula (1), each of R1 and R2 represents a hydrocarbyl group having 1-8 carbon atoms, or the like; each of R5 and R6 represents a hydrocarbyl group having 1-8 carbon atoms, or the like; each of R3 and R4 represents a hydrocarbylene group having 1-6 carbon atom; R7 represents a hydrocarbylene group having 1-10 carbon atom; X1 represents a hydrocarbyloxy group having 1-4 carbon atoms; each of X2 and X3 represents a hydrocarbyl group having 1-4 carbon atoms or a hydrocarbyloxy group; and m represents an integer of 1-3.
Inventors:
NONOYAMA YOSHIKI (JP)
INOUE MASAAKI (JP)
INOUE MASAAKI (JP)
Application Number:
PCT/JP2020/008462
Publication Date:
September 10, 2020
Filing Date:
February 28, 2020
Export Citation:
Assignee:
JSR CORP (JP)
International Classes:
B60C1/00; C08C19/25; C08F4/46; C08K3/36; C08L15/00
Domestic Patent References:
| WO2017026288A1 | 2017-02-16 | |||
| WO2007018018A1 | 2007-02-15 | |||
| WO2008123164A1 | 2008-10-16 | |||
| WO2017221943A1 | 2017-12-28 |
Foreign References:
| JPH0827167A | 1996-01-30 | |||
| JPH11349632A | 1999-12-21 | |||
| JP2019041440A | 2019-03-14 | |||
| JPH11349632A | 1999-12-21 |
Other References:
See also references of EP 3936347A4
Attorney, Agent or Firm:
YAMADA, Tsuyoshi (JP)
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