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. 21, 2021
Filed:
Nov. 13, 2018
Applicant:
Dow Global Technologies Llc, Midland, MI (US);
Inventors:
Thiago V. Alonso, Lake Jackson, TX (US);
Callie M. Ayers, Lake Jackson, TX (US);
Stephen M. Hoyles, Freeport, TX (US);
Assignee:
Dow Global Technologies LLC, Midland, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G 33/04 (2006.01); B01D 17/04 (2006.01); C08G 65/331 (2006.01);
U.S. Cl.
CPC ...
C10G 33/04 (2013.01); B01D 17/047 (2013.01); C08G 65/3315 (2013.01);
Abstract
A method of demulsifying crude oil, said method comprising the step of reacting an amount of crude oil with a polyester demulsifier, therein the demulsifier is used in quantities from 0.0001% to 5% (1-50,000 ppm), preferably 0.0005% to 2% (5-20,000 ppm), more preferably 0.0008% to 1% (8-10,000 ppm) and most preferably 0.001 to 0.1 wt. % polymer (10-1,000 ppm) related to the oil fraction of the utilized emulsion.