ASPHALT RUBBER AND METHOD FOR PRODUCING THE SAME

Title:

ASPHALT RUBBER AND METHOD FOR PRODUCING THE SAME

Document Type and Number:

Japanese Patent JP2009209194

Kind Code:

A

Abstract:

To provide an asphalt rubber which ensures decrease in viscosity reduction during heated storage and is suitable for heated storage, and a method for producing the asphalt rubber.

The asphalt rubber contains a rubber powder comprising a rubber composition having a composition ratio (mass ratio) of (softening rubber)/(hardening rubber) into straight asphalt, wherein the composition ratio of (softening rubber)/(hardening rubber) is preferably in a range from 50/50 to 80/20. The content of the rubber powder comprising the (softening rubber)/(hardening rubber) composition is preferably in a range from 5 to 30 mass%, and the particle diameter of the rubber powder comprising the (softening rubber)/(hardening rubber) composition is preferably in a range from 10 to 5,000 m.

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Inventors:

OTAKE MAKIKO
MASUDA KINJI
MURAYAMA MASAHITO
KOJIMA MUTSUJI

Application Number:

JP2008050970A

Publication Date:

September 17, 2009

Filing Date:

February 29, 2008

Export Citation:

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Assignee:

BRIDGESTONE CORP
TOA DORO KOGYO CO LTD
NISSHIN KASEI KK

International Classes:

C08L95/00; C08L7/00; C08L21/00; E01C7/26

Attorney, Agent or Firm:

Ichiro Honda
Yumiko Sugimoto

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