Title:
ビチューメン組成物
Document Type and Number:
Japanese Patent JP4214058
Kind Code:
B2
Abstract:
A bituminous composition which comprises a bituminous component and a block copolymer which comprises at least two blocks of a conjugated diene and at least two blocks of a monovinylaromatic hydrocarbon, being of the general formula: S1--B1--S2--B2 wherein B1 is a block of polymerized conjugated diene comprising at least 50 mole% isoprene having an apparent molecular weight of from 180,000 to 400,000, S1 and S2 are blocks of polymerized monovinylaromatic hydrocarbon having a weight average molecular weight of 12,000 to 40,000, and B2 is a block of polymerized conjugated diene comprising at least 50 mole% isoprene having an apparent molecular weight of from 15,000 to 60,000; wherein the weight ratio W of B1 over B2 is in the range of 3.0 to 12.0; and wherein the content of polymerized monovinylaromatic hydrocarbon is in the range from 10 to 35 %wt.
Inventors:
Tromelen, Eritsk Adrinus Theunis
Juan Dyke, Martin Say
Juan Dyke, Martin Say
Application Number:
JP2003580427A
Publication Date:
January 28, 2009
Filing Date:
March 24, 2003
Export Citation:
Assignee:
Clayton Polymers Research B.B.
International Classes:
C08L95/00; E04D5/02; C08F297/04; C08L53/02; C09D153/02; C09D195/00; C09J153/02
Domestic Patent References:
| JP2002537435A | ||||
| JP2003055560A | ||||
| JP7138811A | ||||
| JP2113007A | ||||
| JP63264688A | ||||
| JP2001192560A |
Attorney, Agent or Firm:
Yoshio Kawaguchi
Akio Ichiiri
Makoto Ono
Katsuma Osaki
Mitsuaki Tsubokura
Akio Ichiiri
Makoto Ono
Katsuma Osaki
Mitsuaki Tsubokura