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. 01, 2022
Filed:
Aug. 14, 2020
Basf SE, Ludwigshafen am Rhein, DE;
Ivette Garcia Castro, Ludwigshafen, DE;
Kai Gumlich, Dubai, AE;
Stefan Frenzel, Mannheim, DE;
Maria Heuken, Schwarzheide, DE;
Rouven Konrad, Mörstadt, DE;
Karin Neubecker, Frankenthal, DE;
Edward Bohres, Ludwigshafen, DE;
Adam Blanazs, Mannheim, DE;
BASF SE, Ludwigshafen am Rhein, DE;
Abstract
Copolymers comprising Cto Colefins and at least two different olefindicarboxylic esters and optionally maleic acid or maleic acid derivatives. The olefindicarboxylic esters are firstly esters with linear C- to C-alkyl groups and secondly esters with short-chain linear, branched or cyclic alkyl groups, or esters with aromatic groups. The invention further relates to a process for preparing copolymers of this kind and to the use thereof as pour point depressant for crude oil, mineral oil and/or mineral oil products, preferably as pour point depressant for crude oil.