The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 03, 2004
Filed:
May. 16, 2002
Anthony J. Kriech, Indianapolis, IN (US);
Herbert L. Wissel, Indianapolis, IN (US);
Haifang Zhou, Jinan, CN;
Xuefeng Liu, Jinan, CN;
Feng Xu, Jinan, CN;
Shandong Heritage Highway Materials Technologies, Shandong, CN;
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.