Title:
A preparing method of branching poly butadiene with 1 and high 4 - cis unit content
Document Type and Number:
Japanese Patent JP6154891
Kind Code:
B2
Abstract:
A process for the preparation of branched polybutadiene having a high content of 1,4-cis units which comprises polymerizing butadiene in the presence of at least one organic solvent, and in the presence of: a) a catalytic system prepared in situ including: (a1) at least one neodymium carboxylate, (a2) at least one alkyl compound of aluminum, (A3) at least one alkyl compound of aluminum containing at least one halogen atom, and b) at least one organic ester containing at least one halogen atom. Said branched polybutadiene having a high content of 1,4-cis units, depending on the branching degree and molecular weight distribution, can be advantageously used in various applications ranging from the modification of plastic materials [production, for example, of high impact polystyrene (HIPS)] to the production of tires, in particular the production of treads and/or of sidewalls of tires.
Inventors:
Andrea Valieri
Marianna Jinna
Costantino Peretta
Marianna Jinna
Costantino Peretta
Application Number:
JP2015510906A
Publication Date:
June 28, 2017
Filing Date:
April 24, 2013
Export Citation:
Assignee:
VERSALIS S.P.A.
International Classes:
C08F136/06; C08F4/54; C08K3/04; C08K3/36; C08L9/00
Domestic Patent References:
| JP2004204229A | ||||
| JP2004510847A | ||||
| JP2011516642A | ||||
| JP2013540862A |
Foreign References:
| WO2012040026A1 |
Attorney, Agent or Firm:
Kenji Sugimura
Keisuke Kawahara
Nobuyuki Ichieda
Keisuke Kawahara
Nobuyuki Ichieda
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