Title:
POLYMER-MODIFIED ASPHALT COMPOSITION FOR ROOFING
Document Type and Number:
Japanese Patent JP2009191176
Kind Code:
A
Abstract:
To provide a polymer-modified asphalt composition for roofing showing stable dynamic characteristics over a wide range from low temperature to high temperature.
The polymer-modified asphalt composition includes (A) asphalt wherein asphaltene has weight-average molecular weight ranging from 2,000 to 8,000, (B) naphthenic mineral oil, and (C) a styrene block copolymer with weight-average molecular weight of 200,000 or more.
Inventors:
TAJIMA KUNIO
KOJIMA TORU
MACHIDA SHIGERU
USUI KENICHI
KOJIMA TORU
MACHIDA SHIGERU
USUI KENICHI
Application Number:
JP2008033719A
Publication Date:
August 27, 2009
Filing Date:
February 14, 2008
Export Citation:
Assignee:
TAJIMA ROOFING INC
International Classes:
C08L95/00; C08L53/00; C08L91/00
Attorney, Agent or Firm:
Eiji Tomomatsu
Toshio Okamoto
Toshio Okamoto
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