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:
Feb. 08, 2022
Filed:
Jun. 19, 2019
Iowa State University Research Foundation, Inc., Ames, IA (US);
Eric W. Cochran, Ames, IA (US);
Nacu Hernandez, Ames, IA (US);
Ronald Christopher Williams, Ames, IA (US);
IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC., Ames, IA (US);
Abstract
The present invention relates to an asphalt product that comprises an asphalt component and a plurality of pellets comprising a mixture of a ground tire rubber and an elastomeric polymer, where the density difference between the asphalt component and the plurality of pellets is less than 10%. The present invention further relates to a pellet comprising a ground tire rubber ('GTR') and an elastomeric polymer mixed with the GTR, where the GTR has a density of less than 1.12 g/cm. Also disclosed are methods of producing improved asphalt and paving a surface.