Title:
高分子量結合ブロックコポリマー組成物
Document Type and Number:
Japanese Patent JP2009534484
Kind Code:
A
Abstract:
High molecular weight coupled block copolymer composition comprising
(a) a linear diblock copolymer (I) represented by the general formula (A-B), having a peak apparent molecular weight of from 150,000 to 300,000,
(b) a linear di-armed block copolymer (II), represented by the general formula (A-B) 2 X,
(c) a tri-armed block copolymer (III), represented by the formula (A-B) 3 X,
(d) a more than tri-armed block copolymer (IV), represented by the formula (A-B) n>3 X,
(e) side polymeric structures (SPS) having a peak apparent molecular weight below the linear diblock copolymer (I),
wherein A represents a block of predominantly poly(monovinyl aromatic hydrocarbon) and wherein the poly(monovinyl aromatic hydrocarbon) content is in the range of from 20 to 35 wt%; wherein B represents a block of predominantly poly(conjugated diene); wherein X is the residue of a trifunctional and /or tetrafunctional coupling agent; wherein the block copolymer composition has a weigh average molecular weight M w in the range of from 450,000 to 800,000, and
wherein the relative amounts of block copolymers corresponds to: I is from 5 to 15 wt%; II and III together are from 70 to 90 wt%, wherein III is above 10 wt%; IV is below 10 wt% and SPS is less than 10 wt% respectively, relative to the weight of the total block copolymer composition, in which the respective components add up to 100 %.
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Inventors:
Michelle Delmann, Xavier Daniel Dominique Jiyan
Coanyul, Emanuel
Mayene, Catherine Jeanne Solandille
Coanyul, Emanuel
Mayene, Catherine Jeanne Solandille
Application Number:
JP2009505803A
Publication Date:
September 24, 2009
Filing Date:
April 20, 2007
Export Citation:
Assignee:
Clayton Polymers US LLC
International Classes:
C08L53/02; C08F297/04
Foreign References:
| WO2003102032A2 | 2003-12-11 | |||
| WO2004106399A2 | 2004-12-09 |
Attorney, Agent or Firm:
Yoshio Kawaguchi
Makoto Ono
Chihiro Watanabe
Kenkyo Kanayama
Katsuma Osaki
Mitsuaki Tsubokura
Makoto Ono
Chihiro Watanabe
Kenkyo Kanayama
Katsuma Osaki
Mitsuaki Tsubokura