METHOD FOR PRODUCING MODIFIED CONJUGATED DIENE POLYMER, MODIFIED CONJUGATED DIENE POLYMER, POLYMER COMPOSITION, CROSSLINKED BODY AND TIRE

WIPO Patent Application WO/2023/085309

A1

According to the present invention, a modified conjugated diene polymer is produced by a method which comprises a step for polymerizing a monomer that contains a conjugated diene compound in the presence of a polymerization initiator which contains a silicon-containing initiator that has a group F2 and an alkali metal element or an alkaline earth metal element. F2: a *1-Si(R1)n(Y1)3-n group (wherein R1 represents a hydrocarbyl group having 1 to 20 carbon atoms; Y1 represents a -OR2 group or a -NR3R4 group; each of R2, R3 and R4 independently represents a hydrocarbyl group having 1 to 20 carbon atoms; and n is an integer of 0 to 2).

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OHTA NAOKI (JP)
ITOU KEN-ICHI (JP)
MORITA HIROYUKI (JP)
HARAGUCHI MAKOTO (JP)

PCT/JP2022/041686

May 19, 2023

November 09, 2022

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ENEOS MAT CORPORATION (JP)

C08F4/58; B60C1/00; C08F36/04; C08K3/04; C08K3/36; C08L9/00

JP2019199539A	2019-11-21
JP2004182894A	2004-07-02
CN105777946A	2016-07-20

YAMADA, Tsuyoshi (JP)

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