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:
Sep. 03, 2019
Filed:
Sep. 30, 2016
Applicant:
Ecolab Usa Inc., St. Paul, MN (US);
Inventors:
Ali Faghihnejad, Edmonton, CA;
Meng Luo, Edmonton, CA;
Song Gao, Sherwood Park, CA;
Anoop Chengara, Buffalo Grove, IL (US);
Assignee:
Ecolab USA Inc., St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10G 29/20 (2006.01); C10G 29/28 (2006.01); G01N 11/00 (2006.01);
U.S. Cl.
CPC ...
C10G 29/28 (2013.01); C10G 29/20 (2013.01); G01N 11/00 (2013.01); C10G 2300/206 (2013.01); G01N 2011/0046 (2013.01);
Abstract
The present invention generally relates to methods for decreasing viscosity, yield stress, or viscosity and yield stress of an asphaltene precipitate-containing aqueous mixture. More specifically, the method comprises applying an effective amount of a water-soluble polymer to an asphaltene precipitate-containing aqueous mixture. The water-soluble polymers comprise polyanion, polycation, and polar water-soluble polymer components. The present invention also relates to water-soluble asphaltene dispersants.