Title:
ビチューメンエマルジョン
Document Type and Number:
Japanese Patent JP5240477
Kind Code:
B2
Abstract:
The present invention is directed to bituminous emulsions comprising bitumen, water, one or more emulsifiers systems and a diblock copolymer including one block of a monovinylaromatic hydrocarbon and one block of a conjugated diene, wherein the conjugated diene has a peak molecular weight from 30,000 to 78,000 and a vinyl content from 35 to 80 mol percent based on the number of repeat monomer units in the conjugated diene block. A block copolymer comprising at least two blocks of monovinylaromatic hydrocarbon and at least one block of conjugated diene, the block copolymer selected from linear triblock copolymers having a peak molecular weight that is 1.5 to 3.0 times the peak molecular weight of the diblock copolymer, multiarm coupled block copolymers having a peak molecular weight that is 1.5 to 9.0 times the peak molecular weight of the diblock copolymer, and mixtures thereof, wherein each block copolymer has a vinyl content from 35 to 80 mol percent based on the number of repeat monomer units in the conjugated diene block, wherein the ratio of (i) to (ii) in the block copolymer composition is greater than 1:1.
Inventors:
Kuratsutsu, Robert Kyu
Stevens, Keith E
Huong, Willem Say
Colenstra, Yang
Stevens, Keith E
Huong, Willem Say
Colenstra, Yang
Application Number:
JP2009536519A
Publication Date:
July 17, 2013
Filing Date:
November 09, 2007
Export Citation:
Assignee:
Clayton Polymers US LLC
International Classes:
C08L95/00; C08L53/02
Domestic Patent References:
| JP4161460A | ||||
| JP54094519A | ||||
| JP10147717A | ||||
| JP6041440A |
Attorney, Agent or Firm:
Katsuma Osaki
Makoto Ono
Chihiro Watanabe
Kenkyo Kanayama
Mitsuaki Tsubokura
Yoshio Kawaguchi
Makoto Ono
Chihiro Watanabe
Kenkyo Kanayama
Mitsuaki Tsubokura
Yoshio Kawaguchi