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. 28, 2023
Filed:
Jun. 26, 2020
Applicant:
Basf SE, Ludwigshafen, DE;
Inventors:
Stephan Bauer, Ludwigshafen, DE;
Tina Mark, Hassloch, DE;
Lydia König, Speyer, DE;
Yvonne Hagen, Waldsee, DE;
Thomas Daniel, Ludwigshafen, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61L 15/60 (2006.01); C08F 220/06 (2006.01); A61L 15/42 (2006.01); A61F 13/53 (2006.01); A61F 13/534 (2006.01); A61L 15/24 (2006.01); C08F 2/06 (2006.01); C08F 222/10 (2006.01);
U.S. Cl.
CPC ...
C08F 220/06 (2013.01); A61F 13/53 (2013.01); A61F 13/534 (2013.01); A61L 15/24 (2013.01); A61L 15/42 (2013.01); A61L 15/60 (2013.01); A61F 2013/530868 (2013.01); C08F 2/06 (2013.01); C08F 222/103 (2020.02); C08F 2810/20 (2013.01);
Abstract
A process for producing water-absorbing polymer particles by suspension polymerization and thermal surface postcrosslinking, wherein the base polymer obtained by suspension polymerization has a centrifuge retention capacity of at least 37 g/g and the thermal surface postcrosslinking is conducted at 100 to 190° C.