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:
Jul. 07, 2020
Filed:
Dec. 16, 2015
Applicant:
Evonik Operations Gmbh, Essen, DE;
Inventors:
Rhishikesh Gokhale, Darmstadt, DE;
Sandra Muehling, Otzberg, DE;
Miriam Kathrin Stihulka, Maintal, DE;
Klaus Schimossek, Bensheim, DE;
Frank-Olaf Maehling, Mannheim, DE;
Assignee:
Evonik Operations GmbH, Essen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C08F 20/00 (2006.01); C08F 220/18 (2006.01); C08F 2/00 (2006.01); C08F 222/06 (2006.01); C10M 145/16 (2006.01); C10L 1/196 (2006.01); C10L 10/14 (2006.01);
U.S. Cl.
CPC ...
C08F 220/18 (2013.01); C08F 2/001 (2013.01); C08F 222/06 (2013.01); C10L 1/1966 (2013.01); C10L 10/14 (2013.01); C10M 145/16 (2013.01); C08F 220/1818 (2020.02); C10M 2209/084 (2013.01); C10M 2209/086 (2013.01); C10N 2220/021 (2013.01); C10N 2230/02 (2013.01); C10N 2270/00 (2013.01);
Abstract
A method for the preparation of a copolymer containing at least one alkyl methacrylate and maleic anhydride having a number average molecular weight of 4000 to 18000 g/mol proceeds by solution polymerization in the presence of a radical initiator.