US 12,264,248 B2
Polysaccharide coatings with oxygen barrier properties
Natnael Behabtu, Wilmington, DE (US); Christian Peter Lenges, Wilmington, DE (US); and James Joshua Ohane, West Chester, PA (US)
Assigned to NUTRITION & BIOSCIENCES USA 4, INC., Wilmington, DE (US)
Filed by Nutrition & Biosciences USA 4, Inc., Rochester, NY (US)
Filed on Sep. 14, 2022, as Appl. No. 17/944,487.
Application 17/944,487 is a continuation of application No. 16/607,944, granted, now 11,447,652, previously published as PCT/US2018/029013, filed on Apr. 24, 2018.
Claims priority of provisional application 62/489,652, filed on Apr. 25, 2017.
Prior Publication US 2023/0147018 A1, May 11, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C09D 105/00 (2006.01); B32B 33/00 (2006.01); B65D 65/42 (2006.01); B65D 75/26 (2006.01); C08B 37/00 (2006.01); C08J 7/04 (2020.01); C08J 7/048 (2020.01); C08L 5/00 (2006.01); C09D 5/00 (2006.01)
CPC C09D 105/00 (2013.01) [B32B 33/00 (2013.01); B65D 65/42 (2013.01); B65D 75/26 (2013.01); C08B 37/0009 (2013.01); C08J 7/042 (2013.01); C08J 7/0427 (2020.01); C08J 7/048 (2020.01); C08L 5/00 (2013.01); C09D 5/00 (2013.01); B32B 2307/7244 (2013.01); C08J 2300/00 (2013.01); C08J 2367/02 (2013.01); C08J 2405/00 (2013.01)] 20 Claims
 
1. A coated article comprising:
a substrate, an adhesive layer, and a layer of a coating composition, wherein the adhesive layer is disposed between the substrate and the layer of the coating composition, wherein the coating composition is present in an amount sufficient to increase the oxygen barrier property of the substrate;
wherein the adhesive layer comprises vinyl acetate, acrylic, polyurethane, polyvinyl alcohol, ethylene vinyl acetate copolymer, rubber, modified starch, or dextrin;
wherein the coating composition comprises a poly alpha-1,3-glucan ether compound represented by the structure:

OG Complex Work Unit Chemistry
wherein
(i) n is at least 6,
(ii) each R is independently an H or organic group, and
(iii) the compound has a degree of substitution of about 0.05 to about 3.0.