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:
Dec. 01, 2020
Filed:
Sep. 08, 2016
Applicant:
Rhodia Acetow Gmbh, Freiburg, DE;
Inventors:
Guainumbi Medeiros, Campinas, BR;
Renata Brito, Campinas, BR;
Assignee:
Rhodia Acetow GmbH, Freiburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 3/075 (2006.01);
U.S. Cl.
CPC ...
C08J 3/075 (2013.01); C08J 2301/02 (2013.01); C08J 2301/10 (2013.01); C08J 2301/12 (2013.01);
Abstract
The invention relates to a method for the preparation of a polymer gel, comprising cross-linking a polymer by using a cyclic dianhydride of carboxylic acid as cross-linking agent and treating the polymer gel with bicarbonate. The invention further concerns the polymer gel obtainable by the method of the invention and the uses thereof in various applications.