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:
Aug. 09, 1994
Filed:
Jul. 03, 1991
Applicant:
Inventors:
Peter Schilling, Charleston, SC (US);
Hans G Schreuders, Charleston, SC (US);
Assignee:
Westvaco Corporation, New York, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ; C08L / ;
U.S. Cl.
CPC ...
2523115 ; 252356 ; 106277 ; 1062844 ;
Abstract
High float asphalt emulsions with high demulsibilities are prepared from asphalts ill-suited for prior art emulsifiers by mixing a combination of fatty acid and the reaction products of fatty acid with acrylic acid, methacrylic acid, fumaric acid, or maleic anhydride in the form of their alkali salts in the soap solution, and adding to the heated asphalt, prior to the emulsification step, reaction products of fatty acids with mono-, di-, and triethanol amine.