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:
Feb. 25, 2025
Filed:
Mar. 07, 2018
Fpinnovations, Pointe-Claire, CA;
Lakehead University, Thunder Bay, CA;
Pedram Fatehi, Thunder Bay, CA;
Shoujuan Wang, Jinan, CN;
Jacquelyn Price, Port Burwell, CA;
Naceur Jemaa, Pointe-Claire, CA;
Talat Mahmood, Kirkland, CA;
Michael Paleologou, Beaconsfield, CA;
FPInnovations, Pointe-Claire, CA;
LAKEHEAD UNIVERSITY, Thunder Bay, CA;
Abstract
A water-based process was developed for the synthesis of aminated lignin copolymers with high MW, thermal stability and solubility in water over a wide range of p H values. The cationic lignin copolymer described herein comprises: a grafting ratio of (weight of cationic amine compound)/(weight of lignin) of 70 to 200% and a charge density of +1.4-3.0 meq/g. This cationic lignin copolymer can be used as a flocculant in numerous wastewater streams including municipal and industrial systems and sludge dewatering in the pulp & paper, mining and oil industries.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile