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:
Feb. 19, 2019
Filed:
Feb. 16, 2015
Applicant:
Basf SE, Ludwigshafen, DE;
Inventors:
Ivette Garcia Castro, Ludwigshafen, DE;
Stefan Frenzel, Eislingen, DE;
Maria Heuken, Neustadt, DE;
Jennifer Jackson, Mannheim, DE;
Assignee:
BASF SE, Ludwigshafen Am Rhein, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 23/08 (2006.01); C10L 1/19 (2006.01); C08F 210/02 (2006.01); C10L 10/16 (2006.01); E21B 37/06 (2006.01); F17D 1/17 (2006.01); C10L 1/197 (2006.01); C09K 8/524 (2006.01); C09K 8/588 (2006.01);
U.S. Cl.
CPC ...
C08L 23/0869 (2013.01); C08F 210/02 (2013.01); C08L 23/0853 (2013.01); C09K 8/524 (2013.01); C09K 8/588 (2013.01); C10L 1/1973 (2013.01); C10L 10/16 (2013.01); E21B 37/06 (2013.01); F17D 1/17 (2013.01); C08L 2201/56 (2013.01); C10L 2270/10 (2013.01);
Abstract
Copolymers comprising ethylene, vinyl esters, in particular vinyl acetate and esters of (meth)acrylic acid, selected from esters comprising branched alkyl, cyclic alkyl or optionally alkyl substituted aryl moieties and having a weight average molecular weight of 35,000 g/mol to 150,000 g/mol, formulations of such copolymers in organic solvents and their use as pour point depressant, wax inhibitor and flow enhancer for crude oils.