	US 11,939,423 B2
	Biodegradable VCI packaging compositions
Mahin Shahlari, North Oaks, MN (US); and Ik-Hau Ng, Circle Pines, MN (US)
Assigned to Northern Technologies International Corporation, Circle Pines, MN (US)
Appl. No. 17/254,680
Filed by Northern Technologies International Corporation, Circle Pines, MN (US)
PCT Filed Jun. 30, 2020, PCT No. PCT/US2020/040277 § 371(c)(1), (2) Date Dec. 21, 2020, PCT Pub. No. WO2021/003146, PCT Pub. Date Jan. 7, 2021.
Claims priority of provisional application 62/870,208, filed on Jul. 3, 2019.
Prior Publication US 2022/0185953 A1, Jun. 16, 2022
Int. Cl. C08G 63/183 (2006.01); C08L 67/02 (2006.01); C23F 11/02 (2006.01)

CPC C08G 63/183 (2013.01) [C08L 67/02 (2013.01); C23F 11/02 (2013.01); C08L 2201/06 (2013.01); C08L 2201/08 (2013.01)]

19 Claims

1. A biodegradable volatile corrosion inhibitor polyester composition, comprising:

polyester comprising one or more biodegradable random copolymer polyesters and/or one or more biodegradable homopolymer polyesters;

volatile corrosion inhibitors comprising: (i) sodium octanoate, (ii) one or more ammonium salts, and (iii) one or more of benzoic acid, sorbic acid, and a benzoic acid derivative; and

at least one filler.