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:
Aug. 12, 2025
Filed:
Oct. 20, 2021
North Carolina State University, Raleigh, NC (US);
Lokendra Pal, Raleigh, NC (US);
Martin Hubbe, Raleigh, NC (US);
Lucian Lucia, Raleigh, NC (US);
Preeti Tyagi, Raleigh, NC (US);
North Carolina State University, Raleigh, NC (US);
Abstract
Provided are barrier films, packaging products including barrier films, and methods of making paper/packaging products including barrier films. The barrier films can have antimicrobial properties and can include nanofibrillated cellulose treated with hemp extractives. The nanofibrillated cellulose can be obtained from autohydrolysed hemp pulp. The antimicrobial packaging products or paper products can be made by obtaining pulp fibers from autohydrolyzed hemp hurds, mechanically grinding the pulp fibers to obtain nanofibrillated cellulose, solvent casting the nanofibrillated cellulose films in an aqueous system, treating the nanofibrillated cellulose films with hemp extractives, and applying the hemp extractive treated films to a substrate.