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. 04, 2022
Filed:
Jul. 31, 2018
Applicant:
Ecolab Usa Inc., St. Paul, MN (US);
Inventors:
Robert M. Lowe, Chicago, IL (US);
Weiguo Cheng, Naperville, IL (US);
David Jordan, Evanston, IL (US);
Heqing Huang, Naperville, IL (US);
Assignee:
ECOLAB USA INC., St. Paul, MN (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
D21H 21/20 (2006.01); D21H 17/37 (2006.01); D21H 21/24 (2006.01); D21H 21/50 (2006.01);
U.S. Cl.
CPC ...
D21H 17/375 (2013.01); D21H 21/20 (2013.01); D21H 21/24 (2013.01); D21H 21/50 (2013.01);
Abstract
A method of incorporating a low molecular weight polymer (e.g., polymer strength aid) into an industrial process (e.g., papermaking process) is provided. The method comprises treating an industrial process (e.g., paper sheet precursor) with a powder or wetted powder, wherein the powder comprises a polymer dry polymer (e.g., polymer strength aid), wherein the polymer dry polymer (e.g., polymer strength aid) has a weight average molecular weight of from about 10 kDa to about 2,000 kDa.