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. 21, 2023
Filed:
Mar. 26, 2020
Domtar Paper Company, Llc, Fort Mill, SC (US);
The University of British Columbia, Vancouver, CA;
Harshad Pande, Fort Mill, SC (US);
Alexander Timothy Beam, Fort Mill, SC (US);
Mark Martinez, Vancouver, CA;
Jingqian Chen, Vancouver, CA;
Miaoran Li, Vancouver, CA;
Heather Trajano, Vancouver, CA;
Domtar Paper Company, LLC, Fort Mill, SC (US);
The University of British Columbia, Vancouver, CA;
Abstract
Methods of making a paper product can comprise forming a substrate from a first furnish that comprises a plurality of pulp fibers, at least partially dewatering the substrate, treating a second furnish that comprises a plurality of surface enhanced pulp fibers (SEPF) at least by adding one or more enzymes to the second furnish, and sizing the dewatered substrate at least by depositing the treated second furnish onto at least one of opposing first and second surfaces of the dewatered substrate. The SEPF can have a length weighted average fiber length that is greater than or equal to 0.20 millimeters (mm) and an average hydrodynamic specific surface area that is greater than or equal to 10 square meters per gram (m/g).