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:
Sep. 12, 2014
Applicant:
Ecolab Usa Inc., St. Paul, MN (US);
Inventors:
Bo Zhu, Shenyang, CN;
Meng Zhang, Shanghai, CN;
Jun Li, Hebei, CN;
Na Xu, Shanghai, CN;
Yulin Zhao, Shanghai, CN;
Assignee:
Ecolab USA Inc., St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 21/20 (2006.01); D21H 17/37 (2006.01);
U.S. Cl.
CPC ...
D21H 17/375 (2013.01); D21H 17/37 (2013.01); D21H 21/20 (2013.01);
Abstract
The invention provides a process for paper-making comprising adding to pulp slurry at least a first aqueous liquid and a second aqueous liquid so as to obtain a paper stock; forming the paper stock so as to obtain a wet paper web; pressing and draining the wet paper web so as to obtain a wet paper sheet; and drying the wet paper sheet so as to obtain a paper sheet. Correspondingly, the invention provides an aid composition for paper-making.