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. 06, 2019
Filed:
Oct. 28, 2013
Applicant:
Sinvent As, Trondheim, NO;
Inventors:
Martin Fossen, Trondheim, NO;
Helene Konstantia Vralstad, Tanem, NO;
Assignee:
SINVENT AS, Trondheim, NO;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 8/52 (2006.01); C10L 3/10 (2006.01); C07C 69/67 (2006.01); C08G 63/91 (2006.01);
U.S. Cl.
CPC ...
C09K 8/52 (2013.01); C07C 69/67 (2013.01); C08G 63/91 (2013.01); C10L 3/107 (2013.01); C09K 2208/22 (2013.01);
Abstract
The present invention relates to a non-toxic and biodegradable low dosage gas hydrate inhibitor comprising hyper-branched polyester polyols having hydroxyl end groups which are chemically modified. Further, the invention relates to a method for controlling gas hydrate formation and plugging of gas hydrate forming fluids and the use of the gas hydrate inhibitors for this purpose.