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:
Apr. 07, 2026
Filed:
Dec. 21, 2022
Elham Fini, Phoenix, AZ (US);
Farideh Pahlavan, Tempe, AZ (US);
Albert Hung, Tempe, AZ (US);
Arizona Board of Regents on behalf of Arizona State University, Scottsdale, AZ (US);
Abstract
A modified bitumen composition includes bitumen, biomass oil including one or more phenolic compounds, and added sulfur. The modified bitumen composition includes between about 5 wt % and about 25 wt % of the added sulfur, at least some of the added sulfur is present as polysulfide chains, and at least some of the one or more phenolic compounds are configured to covalently bind to the polysulfide chains. Making a modified bitumen includes combining bitumen and elemental sulfur to yield sulfur-extended bitumen, and combining the sulfur-extended bitumen with biomass oil including one or more phenolic compounds to yield the modified bitumen.