Title:
Asphalt constituent
Document Type and Number:
Japanese Patent JP6255492
Kind Code:
B2
Abstract:
The asphalt composition of the present invention is an asphalt composition comprising 1% to 15% by mass of a block copolymer (a) and an asphalt (c), wherein the block copolymer (a) comprises a specific block copolymer (a-1) and a specific block copolymer (a-2) in specific amounts, wherein the content of a vinyl aromatic monomer unit in the block copolymer (a) is 34% by mass or more and 55% by mass or less, the number average molecular weight of the block copolymer (a-1) is in the range of 20,000 to 73,000, and the number average molecular weight of the block copolymer (a-2) is 1.5 to 5.0 times higher than the number average molecular weight of the block copolymer (a-1).
Inventors:
Yoshifumi Araki
Application Number:
JP2016523532A
Publication Date:
December 27, 2017
Filing Date:
May 27, 2015
Export Citation:
Assignee:
ASAHI KASEI KABUSHIKI KAISHA
International Classes:
C08L95/00; C08L53/02; E01C7/18
Domestic Patent References:
| JP2010509469A | ||||
| JP2011518244A | ||||
| JP2010526180A | ||||
| JP8165435A | ||||
| JP8225711A | ||||
| JP9012898A |
Attorney, Agent or Firm:
Yoshiyuki Inaba
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito
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