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Title:
ブタジエン/イソプレン/モノビニル芳香族モノマーのヘプタブロックコポリマーおよびそれを製造する方法
Document Type and Number:
Japanese Patent JP4380958
Kind Code:
B2
Abstract:
The present invention relates to butadiene/isoprene/monovinyl aromatic monomer heptablock copolymers having the following symmetric structure:wherein Z represents a polymer block of monovinyl aromatic monomer, X and Y, being different from each other, represent polymer blocks of butadiene or isoprene, XZ represents a tapered copolymer block of monovinyl aromatic monomer and butadiene or isoprene, and wherein the content of the recurring units derived from monovinyl aromatic monomer is 10 to 50 percent by weight, the content of the recurring units derived from butadiene is 10-75 percent by weight and the content of the recurring units derived from isoprene is 10-75 percent by weight, all based on the weight of the block copolymer, and methods for the preparation thereof.

Inventors:
Li, Yang
Hong, Tin Yi
Gu, minchu
Yang, Jin Zhong
One, euron
Shui, Hong Do
Lou, Shin Jun
Ryu, Chancia
Lou, Yong Jun
Song, You Chuan
Application Number:
JP2001514016A
Publication Date:
December 09, 2009
Filing Date:
July 28, 2000
Export Citation:
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Assignee:
Cheng Guo Si Yu Huang Jitungongs
Beijing Yangshan Shu Huagon Gongs Yangjiuyuan
International Classes:
C08F297/04
Domestic Patent References:
JP3091516A
JP10204136A
JP6107745A
JP6234821A
JP50043193A
Attorney, Agent or Firm:
Masao Okabe
Nobuaki Kato
Kazuo
Shinichi Usui
Ikuo Fujino
Takao Ochi
Teruhisa Motomiya
Norimichi Takanashi
Asahi Shinmitsu
Seiichiro Takahashi
Koji Yoshizawa