Title:
POLYMERIZATION CATALYST AND METHOD FOR PRODUCING COPOLYMER
Document Type and Number:
WIPO Patent Application WO/2019/225146
Kind Code:
A1
Abstract:
Provided is a polymerization catalyst capable of improving polymerization activity when copolymerizing. This polymerization catalyst is characterized by containing a principal catalyst (Component (A)) which has a ligand represented by general formula (I) [In the formula, Cp represents a cyclopentadiene-based skeleton selected from a cyclopentadiene skeleton, an indene skeleton, and a fluorene skeleton, Ph represents an aromatic ring, R1 represents a single bond or an arbitrary group, and R2 each represent the same or a different arbitrary group].
Inventors:
TAKANO SHIGENAGA (JP)
TARDIF OLIVIER (JP)
HOTTA AYA (JP)
TARDIF OLIVIER (JP)
HOTTA AYA (JP)
Application Number:
PCT/JP2019/013427
Publication Date:
November 28, 2019
Filing Date:
March 27, 2019
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
C08F4/54; C08F4/6192; C08F4/58; C08F210/00
Domestic Patent References:
| WO2012014455A1 | 2012-02-02 | |||
| WO2015190072A1 | 2015-12-17 |
Foreign References:
| CN101220060A | 2008-07-16 | |||
| KR20100070674A | 2010-06-28 | |||
| JP2011098954A | 2011-05-19 |
Other References:
SUN, XUEGIN ET AL.: "Various silyl-substituted cyclopentadienyl titanium complexes [CpSi ( CH 3) 2X] TiCl3 as catalysts for syndiotacticpolystyrene", EUROPEAN POLYMER JOURNAL, vol. 40, 9 April 2004 (2004-04-09), pages 1903 - 1908, XP004517895, DOI: 10.1016/j.eurpolymj.2004.03.001
See also references of EP 3798239A4
See also references of EP 3798239A4
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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