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. 31, 2019
Filed:
Jun. 14, 2018
Ecolab Usa Inc., St. Paul, MN (US);
Xiaojin Harry Li, Palatine, IL (US);
Sergey M. Shevchenko, Aurora, IL (US);
Ross Gray, Plainfield, IL (US);
Robert M. Lowe, Chicago, IL (US);
David Jordan, Evanston, IL (US);
Zhengang Zong, Aurora, IL (US);
Ecolab USA Inc., St. Paul, MN (US);
Abstract
An acrylamide-based polymer which contains one or more multiquaternized ('multiquat') monomer unit(s) is provided. The acrylamide-based polymer can be used in a papermaking process to reduce pitch and stickies deposition, improve retention and drainage, and enhance dry strength properties of paper. Also included is a method of controlling pitch and stickies deposition in papermaking comprising treating pulp slurry with an acrylamide-based polymer which contains one or more multiquaternized ('multiquat') monomer unit(s).