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:
Sep. 05, 2017
Filed:
May. 13, 2013
Research Institute of Highway, Ministry of Transportation, Beijing, CN;
Dongwei Cao, Beijing, CN;
Min He, Beijing, CN;
Haiyan Zhang, Beijing, CN;
Xiaowei Wu, Beijing, CN;
Guoqi Tang, Beijing, CN;
Ke Zhong, Beijing, CN;
Yongjun Fan, Beijing, CN;
Abstract
The disclosure provides bio-asphalt, bio-asphalt compositions and a method for preparing them. It belongs to the technical field of asphalt material. The method of the disclosure uses bio-oil as the raw material, adopts a combination of extraction process and oxidation process to prepare bio-asphalt, and modifies the product obtained from bio-oil by extraction process or bio-asphalt with ordinary petroleum asphalt and/or aromatic hydrocarbon oil and a macromolecular material to obtain a bio-asphalt composition.