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Patent Searching and Data


Title:
Polymer improved asphalt constituent
Document Type and Number:
Japanese Patent JP6071538
Kind Code:
B2
Abstract:
A polymer-modified asphalt composition is disclosed The composition comprises base asphalt, a thermoplastic elastomer, and a polycyclic diterpene of carbon number 20 and having a carboxyl group. The thermoplastic elastomer is a mixture of a first styrene-based thermoplastic elastomer and a second styrene-based thermoplastic elastomer. The composition has been shown to reduce the softening point while maintaining a high rut resistance (DS value) after production and without curing.

Inventors:
Kazuhiro Wakamatsu
Masahiro Sano
Application Number:
JP2012283473A
Publication Date:
February 01, 2017
Filing Date:
December 26, 2012
Export Citation:
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Assignee:
Showa Shell Sekiyu Co., Ltd.
International Classes:
C08L53/02; C08L95/00; C08L93/04
Domestic Patent References:
JP10212416A
JP2001040227A
JP2010260940A
JP2010150346A
Foreign References:
WO2005123834A1
Attorney, Agent or Firm:
Yasuhiko