Title:
MULTIGRADE ASPHALT POWDER ADDITIVE
Document Type and Number:
WIPO Patent Application WO2003097751
Kind Code:
A3
Abstract:
An additive composition than can be incorporated into asphalt materials to impart thereto multigrade characteristics. The additive is prepared by reacting together at least one saponifiable organic acid, at least one resin acid, at least one unsaturated organic compound, and an alkali metal base to form a reaction product. Water produced during the reaction is removed as the reaction proceeds. The resulting reaction product can be formed into a powder and combined together with asphalt materials to produce multigrade asphalts.
Inventors:
KRIECH ANTHONY J
WISSEL HERBERT L
ZHOU HAIFANG
LIU XUEFENG
XU FENG
WISSEL HERBERT L
ZHOU HAIFANG
LIU XUEFENG
XU FENG
Application Number:
PCT/IB2003/002492
Publication Date:
January 29, 2004
Filing Date:
May 14, 2003
Export Citation:
Assignee:
SHANDONG HERITAGE HIGHWAY MATE (CN)
International Classes:
C08L95/00; C10C3/02; (IPC1-7): C08L91/00; C08L95/00
Foreign References:
| US4874432A | 1989-10-17 | |||
| US5496400A | 1996-03-05 | |||
| US3607773A | 1971-09-21 | |||
| CN1194281A | 1998-09-30 |
Other References:
See also references of EP 1504062A4
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