A generation method of the poly Diene which has the cold flow which decreased, and the poly Diene copolymer

Title:

A generation method of the poly Diene which has the cold flow which decreased, and the poly Diene copolymer

Document Type and Number:

Japanese Patent JP6144275

Kind Code:

B2

Abstract:

A method for preparing a coupled polymer, the method comprising the steps of: (i) polymerizing monomer to form a reactive polymer; (ii) reacting the reactive polymer with a polyisocyanate having a functionality of X to form an intermediate polymer product; and (iii) reacting the intermediate polymer product with a polyol having a functionality of Y to form the coupled polymer product, where X+Y≧5.

Inventors:

Macori kevin
Hogan Terence
Hagen Rosa William

Application Number:

JP2014546166A

Publication Date:

June 07, 2017

Filing Date:

December 10, 2012

Export Citation:

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Assignee:

Bridgestone Corporation

International Classes:

C08F8/30; B60C1/00; C08F36/04

Domestic Patent References:

JP2009173926A

Foreign References:

US20040230010
WO2008078814A1

Attorney, Agent or Firm:

Tamotsu Otani
Kenichi Hirasawa
Yoshio Takizawa

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