POLYMERIZATION CATALYST COMPOSITION, METHOD FOR PRODUCING POLYMERIZATION CATALYST COMPOSITION, AND METHOD FOR PRODUCING CONJUGATED DIENE POLYMER

Title:

POLYMERIZATION CATALYST COMPOSITION, METHOD FOR PRODUCING POLYMERIZATION CATALYST COMPOSITION, AND METHOD FOR PRODUCING CONJUGATED DIENE POLYMER

Document Type and Number:

WIPO Patent Application WO/2022/045282

Kind Code:

A1

Abstract:

A polymerization catalyst composition which contains a rare earth carboxylate, a phosphoric acid ester represented by general formula (1) and water. (In the formula, each R independently represents an alkyl group having from 5 to 20 carbon atoms.)

Inventors:

TAKAHASHI AKINORI (JP)
NAKANO HIROAKI (JP)
TAKENAKA KATSUHIKO (JP)
TODA TOMOYUKI (JP)

Application Number:

PCT/JP2021/031464

Publication Date:

March 03, 2022

Filing Date:

August 27, 2021

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Assignee:

DAINIPPON INK & CHEMICALS (JP)
NATIONAL UNIV CORPORATION NAGAOKA UNIV OF TECHNOLOGY (JP)

International Classes:

C08F4/54; C08F4/606; C08F236/04

Foreign References:

CN102532368A	2012-07-04
JP2002512249A	2002-04-23
CN104744612A	2015-07-01
JPH11158207A	1999-06-15
JP2020143898A	2020-09-10
JP3828340B2	2006-10-04
JP4699606B2	2011-06-15
EP0375421A1	1990-06-27

Other References:

KIRK-OTHMER: "Encyclopedia of Chemical Technology", vol. 5, 1993, JOHN WILEY & SON, pages: 147 - 192

Attorney, Agent or Firm:

NISHIZAWA Kazuyoshi et al. (JP)

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