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:
Jul. 07, 2020
Filed:
Dec. 30, 2016
Applicant:
Ecolab Usa Inc., St. Paul, MN (US);
Inventors:
Yulin Zhao, Shanghai, CN;
Chunhao Wang, Shanghai, CN;
Na Xu, Shanghai, CN;
Jun Li, Shanghai, CN;
Meng Zhang, Shanghai, CN;
Assignee:
ECOLAB USA INC., St. Paul, MN (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
D21H 17/26 (2006.01); D21H 21/18 (2006.01); D21H 17/45 (2006.01); D21H 17/42 (2006.01); D21H 27/10 (2006.01); D21H 17/44 (2006.01); D21H 17/47 (2006.01); D21H 17/56 (2006.01); D21H 17/37 (2006.01); D21H 17/36 (2006.01); D21H 17/43 (2006.01);
U.S. Cl.
CPC ...
D21H 21/18 (2013.01); D21H 17/26 (2013.01); D21H 17/36 (2013.01); D21H 17/37 (2013.01); D21H 17/375 (2013.01); D21H 17/42 (2013.01); D21H 17/43 (2013.01); D21H 17/44 (2013.01); D21H 17/45 (2013.01); D21H 17/47 (2013.01); D21H 17/56 (2013.01); D21H 27/10 (2013.01);
Abstract
The present disclosure relates to a dry strength agent composition, use of an amine-containing cationic polymer for enhancing the dry strength of paper, and a method for enhancing the dry strength of paper. The dry strength agent composition includes at least two components. The first component is an amine-containing cationic polymer and the second component may be one or more anionic or amphoteric polymers.