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:
Nov. 13, 2018
Filed:
Sep. 17, 2015
Applicant:
Croda, Inc., Edison, NJ (US);
Inventors:
Min Ma Wang, Kennett Square, PA (US);
Craig Michael Sungail, Chadds Ford, PA (US);
Xin Chen, Hockessin, DE (US);
Jonathan Harry Kaufman, Wilmington, DE (US);
Assignee:
Croda, Inc., Edison, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G 75/00 (2006.01); C09K 8/524 (2006.01); C10G 75/04 (2006.01); C10L 1/198 (2006.01); C10L 10/04 (2006.01);
U.S. Cl.
CPC ...
C09K 8/524 (2013.01); C10G 75/04 (2013.01); C10L 1/198 (2013.01); C10L 1/1983 (2013.01); C10L 10/04 (2013.01); C10L 2230/08 (2013.01);
Abstract
A method of inhibiting asphaltene precipitation and/or deposition in a hydrocarbon, preferably crude oil, by adding to the hydrocarbon a polyester asphaltene dispersing agent which is the reaction product of an alk(en)yl substituted succinic anhydride wherein the average number of succinic groups per alk(en)yl group is less than 2.0, and at least one polyol.