Title:
ADDITIVE FOR MODIFIED ASPHALT AND ITS COMPOSITION
Document Type and Number:
Japanese Patent JP2000256563
Kind Code:
A
Abstract:
To obtain the subject additive capable of reducing the viscosity of a modified asphalt at high temperatures without lowering its ignition point, suppressing segregation of a modified asphalt into asphalt and a modifier, and giving asphalt compositions with excellent binder characteristics including penetration, softening point and 60°C viscosity.
This additive for modified asphalt consists of a vacuum distillation residual oil produced from the vacuum distillation process in petroleum refinery operations, having an ignition point of ≥280°C, dynamic viscosity at 60°C of ≥3,000 mm2/s, and dynamic viscosity at 120°C of ≤200 mm2/s.
Inventors:
WATANABE KOKI
WATANABE YOSHIAKI
MURAYAMA MASAHITO
TADA SATOSHI
WATANABE YOSHIAKI
MURAYAMA MASAHITO
TADA SATOSHI
Application Number:
JP6196299A
Publication Date:
September 19, 2000
Filing Date:
March 09, 1999
Export Citation:
Assignee:
IDEMITSU KOSAN CO
TOA DORO KOGYO CO LTD
TOA DORO KOGYO CO LTD
International Classes:
C08K5/00; C08L95/00; (IPC1-7): C08L95/00; C08K5/00
Domestic Patent References:
| JPH04359089A | 1992-12-11 | |||
| JPH06116499A | 1994-04-26 | |||
| JPH0539490A | 1993-02-19 |
Attorney, Agent or Firm:
Otani Ho