US 12,384,932 B2
Packaging coatings, packaging products, and methods of making
Lokendra Pal, Raleigh, NC (US); Martin Hubbe, Raleigh, NC (US); Lucian Lucia, Raleigh, NC (US); and Preeti Tyagi, Raleigh, NC (US)
Assigned to North Carolina State University, Raleigh, NC (US)
Filed by North Carolina State University, Raleigh, NC (US)
Filed on Oct. 20, 2021, as Appl. No. 17/451,586.
Claims priority of provisional application 63/105,114, filed on Oct. 23, 2020.
Prior Publication US 2022/0127486 A1, Apr. 28, 2022
Int. Cl. C09D 101/02 (2006.01); B29C 39/00 (2006.01); B32B 9/02 (2006.01); B32B 9/06 (2006.01); B65D 65/42 (2006.01); B29K 1/00 (2006.01)
CPC C09D 101/02 (2013.01) [B29C 39/003 (2013.01); B32B 9/02 (2013.01); B32B 9/06 (2013.01); B65D 65/42 (2013.01); B29K 2001/00 (2013.01); B32B 2307/718 (2013.01); B32B 2307/732 (2013.01); B32B 2439/70 (2013.01); B32B 2553/00 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A barrier film or coating comprising:
treated nanofibrillated cellulose obtained by treating nanofibrillated cellulose with hemp extractives; and
wherein the treated nanofibrillated cellulose contains the hemp extractives, the hemp extractives comprising vanillin, syringaldehyde, p-hydroxybenzaldehyde, vanillic acid, p-coumaric acid, acetosyringone, and gallic acid.