Title:
1,4-シス単位の含有量が高い分岐ポリブタジエンの調製方法
Document Type and Number:
Japanese Patent JP5520284
Kind Code:
B2
Abstract:
Process for the preparation of polybutadiene effected by the polymerization of butadiene in an aliphatic and/or cyclo-aliphatic solvent in the presence of a catalytic system prepared in situ which comprises: (i) a carboxylate of neodymium soluble in the process solvent containing a variable quantity of water, the H2O/Nd molar ratio ranging from 0.001/1 to 0.50/1; (ii) an alkyl compound of aluminum; (iii) an alkyl compound of aluminum in which at least one bond of Al consists of an Al-Cl bond; The total Al/Nd molar ratio ranging from 4/1 to 12/1, and the Cl/Nd molar ratio ranging from 2/1 to 6/1.
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Inventors:
Viola Jean Tomaso
Jinna Marianna
Jinna Marianna
Application Number:
JP2011502264A
Publication Date:
June 11, 2014
Filing Date:
March 19, 2009
Export Citation:
Assignee:
VERSALIS S.P.A.
International Classes:
C08F136/06; C08F4/54; C08F4/606
Domestic Patent References:
| JP2002512249A | ||||
| JP2004204229A | ||||
| JP2005220349A |
Foreign References:
| EP1840112A1 |
Attorney, Agent or Firm:
Koichi Tsujii
Sadao Kumakura
Nobuo Ogawa
Atsushi Hakoda
Kenji Asai
Kazuo Yamazaki
Shimura
Sadao Kumakura
Nobuo Ogawa
Atsushi Hakoda
Kenji Asai
Kazuo Yamazaki
Shimura
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