A manufacturing method of a denaturation conjugate diene system polymer, a denaturation conjugate diene system polymer, a denaturation conjugate diene system polymer constituent, and a tire

Title:

A manufacturing method of a denaturation conjugate diene system polymer, a denaturation conjugate diene system polymer, a denaturation conjugate diene system polymer constituent, and a tire

Document Type and Number:

Japanese Patent JP5964570

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a modified conjugated diene-based polymer composition having excellent low-hysteresis loss properties and wet skid resistance, and further having excellent balance of these properties, and excellent balance of abrasion resistance and breaking strength; to provide a modified conjugated diene-based polymer constituting the composition, and having excellent cold-flow resistance; and to provide a method for producing the polymer.SOLUTION: The method for producing the modified conjugated diene-based polymer includes a step for obtaining a conjugated diene-based polymer by polymerizing a conjugated diene compound or copolymerizing the conjugated diene compound with an aromatic vinyl compound by using an anionic polymerization initiator, and a step for reacting a modifier with an active terminal of the conjugated diene-based polymer by dividedly adding the modifier having an alkoxysilyl group and a nitrogen atom by dividing the modifier to two or more portions.

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Inventors:

Yukio Yamaura
Kameda Ippei

Application Number:

JP2011225087A

Publication Date:

August 03, 2016

Filing Date:

October 12, 2011

Export Citation:

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Assignee:

ASAHI KASEI KABUSHIKI KAISHA

International Classes:

C08C19/25; B60C1/00; C08F4/44; C08F36/04; C08K3/00; C08L15/00

Domestic Patent References:

JP2009030027A

Foreign References:

WO2011049180A1
WO2011040312A1
WO2007114203A1

Attorney, Agent or Firm:

Yoshiyuki Inaba
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito

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