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:
May. 20, 2008
Filed:
Jun. 21, 2005
Michael V. Burris, Carlsbad, CA (US);
Bryan B. Burris, Carlsbad, CA (US);
Hossein Ajideh, Carlsbad, CA (US);
Michael V. Burris, Carlsbad, CA (US);
Bryan B. Burris, Carlsbad, CA (US);
Hossein Ajideh, Carlsbad, CA (US);
Asphalt Technology, LLC., Carlsbad, CA (US);
Abstract
A method for modifying asphalt comprises blowing an oxygen-containing gas through a base asphalt at a high gas flow rate while simultaneously agitating the base asphalt at a high shear rate and at an elevated temperature for a period of time that is effective to substantially improve at least two paving properties of the base asphalt. In preferred embodiments, modified asphalts are produced having both substantially improved rutting resistance and substantially improved fatigue resistance as compared to the base asphalt.