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:
Jun. 11, 2019
Filed:
Feb. 19, 2016
Applicant:
Basf SE, Ludwigshafen, DE;
Inventor:
Bjoern Langlotz, Trostberg, DE;
Assignee:
BASF SE, Ludwigshafen am Rhein, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 5/47 (2006.01); C08F 220/56 (2006.01); C08F 220/58 (2006.01); C09K 8/588 (2006.01);
U.S. Cl.
CPC ...
C08K 5/47 (2013.01); C08F 220/56 (2013.01); C08F 220/58 (2013.01); C09K 8/588 (2013.01);
Abstract
The present application relates to a process for producing a composition comprising at least one acrylamide polymer P and at least one stabilizer St for preventing polymer degradation by molecular oxygen, wherein the acrylamide polymer P is obtained in the form of a polymer gel, and the acrylamide polymer gel having a water content of at least 30% by weight, based on the overall polymer gel, is treated with an aqueous solution SS comprising 0.1% to 50% by weight, based on the overall aqueous solution SS, of the at least one stabilizer St.