US 12,466,948 B2
Ultra-fast marine-biodegradable composite film
Mirek Planeta, Mississauga (CA); Alex Mann, Vaughan (CA); and Vladimir Climov, Toronto (CA)
Assigned to SINGULAR SOLUTIONS INC., North York (CA)
Appl. No. 18/026,354
Filed by Singular Solutions Inc., North York (CA)
PCT Filed Sep. 17, 2021, PCT No. PCT/CA2021/051302
§ 371(c)(1), (2) Date Mar. 15, 2023,
PCT Pub. No. WO2022/056641, PCT Pub. Date Mar. 24, 2022.
Claims priority of provisional application 63/079,673, filed on Sep. 17, 2020.
Prior Publication US 2023/0357565 A1, Nov. 9, 2023
Int. Cl. B32B 7/12 (2006.01); B32B 27/08 (2006.01); B32B 27/18 (2006.01); B32B 27/30 (2006.01); B32B 27/36 (2006.01); C08L 67/04 (2006.01)
CPC C08L 67/04 (2013.01) [B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/18 (2013.01); B32B 27/306 (2013.01); B32B 27/36 (2013.01); B32B 2250/05 (2013.01); B32B 2250/42 (2013.01); B32B 2264/06 (2013.01); B32B 2264/104 (2013.01); B32B 2264/302 (2020.08); B32B 2264/303 (2020.08); B32B 2307/7163 (2013.01); B32B 2307/7166 (2013.01); B32B 2307/7376 (2023.05); B32B 2439/70 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An ultra-fast marine-biodegradable composite film, comprising:
at least one water-soluble layer; and
at least one marine-biodegradable layer disposed in contact with the at least one water-soluble layer,
wherein the at least one water-soluble layer and/or the at least one marine-biodegradable layer comprises a nanostarch compound, and
wherein the at least one water-soluble layer comprises a water-soluble substance and a water-insoluble substance, and the water soluble substance is selected from thermoplastic starch (TPS), poly(vinyl alcohol) (PVOH), copolymers thereof, derivatives thereof, and mixtures thereof.