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. 21, 2020
Filed:
Jul. 06, 2017
Applicant:
Ecolab Usa Inc., St. Paul, MN (US);
Inventors:
Qing Qing Yuan, Shanghai, CN;
Qun Dong, Shanghai, CN;
Zhi Chen, Shanghai, CN;
Jian Kun Shen, Shanghai, CN;
Assignee:
Ecolab USA Inc., St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 17/00 (2006.01); D21H 17/25 (2006.01); D21H 17/41 (2006.01); D21H 21/02 (2006.01); D21H 17/26 (2006.01); D21H 17/29 (2006.01); D21H 17/56 (2006.01); D21C 9/08 (2006.01); D21H 17/45 (2006.01); D21H 17/66 (2006.01);
U.S. Cl.
CPC ...
D21H 17/74 (2013.01); D21C 9/08 (2013.01); D21H 17/00 (2013.01); D21H 17/25 (2013.01); D21H 17/26 (2013.01); D21H 17/29 (2013.01); D21H 17/41 (2013.01); D21H 17/45 (2013.01); D21H 17/56 (2013.01); D21H 17/66 (2013.01); D21H 21/02 (2013.01);
Abstract
The present invention discloses a method for detackifying organic contaminants in the process of pulping and papermaking and a composition used for the same. Specifically, the invention discloses that the water circulation system of pulping and papermaking process can be provided with non-ionic cellulose ether and cationic coagulant in lower amount, through which, the deposition of organic contaminants can be inhibited under the synergistic action of pre-coagulation and detackification.