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. 12, 1998
Filed:
Jan. 17, 1996
Michael P Doyle, Phoenix, AZ (US);
Vinzoyl Technical Services, LLC, Tempe, AZ (US);
Abstract
A method to saponify the naturally-occurring acids found in asphalts is disclosed. The method utilizes sodium hydroxide (or other strong base), added to asphalt which is then subjected to high shear mixing, at an elevated temperature. The method disclosed may be used in conjunction with polymers and other modifiers added to asphalt to enhance the asphalt's performance. The asphalt prepared in accordance with the method is used in road applications, roofing applications and numerous specialty applications which use asphalt as the base material. The asphalt prepared in accordance with the method can be used hot, liquefied with solvents or emulsified with water and surfactants.