Title:
変性共役ジエン−ビニル芳香族炭化水素共重合体およびその重合方法
Document Type and Number:
Japanese Patent JP5738395
Kind Code:
B2
Abstract:
Provided is a polymerization method of a modified copolymer of conjugated diene and vinyl aromatic hydrocarbon. A multi-functional vinyl benzene-based compound is reacted with an organic alkali metal compound to form a star shaped compound with multiple active sites. A conjugated diene monomer, a vinyl aromatic hydrocarbon monomer, and the star shaped compound with multiple active sites are reacted with each other to form a copolymer of conjugated diene and vinyl aromatic hydrocarbon. The copolymer of conjugated diene and vinyl aromatic hydrocarbon is then reacted with a modifier to form the modified copolymer of conjugated diene and vinyl aromatic hydrocarbon. The modifier is represented by formula 1, wherein R1 is a C2-C4 alkylene group; R2 is a group at least consisting of a C2-C4 alkylene group and a C1-C3 alkoxy group; m is an integer of 5 to 30; and n is an integer of 5 to 35.
Inventors:
Apology
Chung nobleman
Lee
Chung nobleman
Lee
Application Number:
JP2013266045A
Publication Date:
June 24, 2015
Filing Date:
December 24, 2013
Export Citation:
Assignee:
Chimei Business Co., Ltd.
International Classes:
C08F8/42; B60C1/00; C08F212/04; C08F236/04
Domestic Patent References:
| JP2011219701A | ||||
| JP3079606A |
Foreign References:
| WO2010131646A1 |
Attorney, Agent or Firm:
Kenji Sugimura
Hitomi Yuki
Hirota Taura
Hitomi Yuki
Hirota Taura