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. 28, 2021
Filed:
Sep. 26, 2018
Applicant:
Kemira Oyj, Helsinki, FI;
Inventors:
Yuping Luo, Johns Creek, GA (US);
Junhua Chen, Mableton, GA (US);
Zheng Dang, Lilburn, GA (US);
Jennifer Riser, Marietta, GA (US);
Assignee:
Kemira Oyj, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 21/20 (2006.01); D21H 17/37 (2006.01); D21H 17/28 (2006.01); D21H 17/42 (2006.01); D21H 21/10 (2006.01); D21H 21/16 (2006.01);
U.S. Cl.
CPC ...
D21H 21/20 (2013.01); D21H 17/375 (2013.01); D21H 17/28 (2013.01); D21H 17/42 (2013.01); D21H 21/10 (2013.01); D21H 21/16 (2013.01);
Abstract
A surface treatment composition is disclosed including anionic polyacrylamide, which has a weight average molecular weight, MW, in the range of 100 000-2 000 000 g/mol, and free glyoxal. Further disclosed is a use of the surface treatment composition, a method for producing paper, board or the like and a paper product.