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:
Jan. 23, 2018
Filed:
Oct. 07, 2015
Applicant:
Evonik Degussa Gmbh, Essen, DE;
Inventors:
Manfred van Stiphoudt, Kempen, DE;
Udo Klapperich, Leubsdorf/Rhein, DE;
Theodor Malinowski, Wachtendonk, DE;
Assignee:
Evonik Degussa GmbH, Essen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08L 33/02 (2006.01);
U.S. Cl.
CPC ...
C08L 33/02 (2013.01); C08L 2201/54 (2013.01); C08L 2312/00 (2013.01);
Abstract
Described is a process for producing water-absorbing polymers wherein a base polymer A is contacted and mixed with an aqueous additive solution B in a mixing device, wherein the base polymer A is formed from monomers bearing at least 30% neutralized acid groups and the aqueous additive solution B is dosed into the mixing device without nozzle via a pipe.