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:
Mar. 12, 2024
Filed:
Oct. 30, 2020
Solenis Technologies, L.p., Wilmington, DE (US);
Davit Edward Sharoyan, Wilmington, DE (US);
John Charles Harrington, IV, Wilmington, DE (US);
Valmir Frauches de Freitas, Wilmington, DE (US);
Flávio Henrique Gazzotti Bueno de Oliveira, Wilmington, DE (US);
SOLENIS TECHNOLOGIES, L.P., Wilmington, DE (US);
Abstract
A method of increasing chemical efficiency of chemical additives in a papermaking system includes the steps of providing thick stock pulp comprising soluble lignin, process water, and at least about 2% by weight of cellulosic fiber based on total weight of thick stock pulp, and adding at least one organic polymer to the thick stock pulp to reduce the amount of soluble lignin therein. The organic polymer is chosen from cationic polymers, non-ionic polymers and combinations thereof.