US 11,945,197 B2
Multilayer polylactide based structure and articles made therefrom
Martin Doornheim, Oude-Tonge (NL)
Assigned to TOTALENERGIES CORBION CV, Corinchem (NL)
Appl. No. 17/909,679
Filed by TotalEnergies Corbion BV, Gorinchem (NL)
PCT Filed Mar. 5, 2021, PCT No. PCT/EP2021/055616
§ 371(c)(1), (2) Date Sep. 6, 2022,
PCT Pub. No. WO2021/176067, PCT Pub. Date Sep. 10, 2021.
Claims priority of application No. 20161419 (EP), filed on Mar. 6, 2020.
Prior Publication US 2023/0119820 A1, Apr. 20, 2023
Int. Cl. B32B 27/08 (2006.01); B32B 7/12 (2006.01); B32B 27/18 (2006.01); B32B 27/36 (2006.01)
CPC B32B 27/08 (2013.01) [B32B 7/12 (2013.01); B32B 27/18 (2013.01); B32B 27/36 (2013.01); B32B 2250/244 (2013.01); B32B 2307/516 (2013.01); B32B 2307/518 (2013.01); B32B 2307/7244 (2013.01); B32B 2307/7246 (2013.01); B32B 2553/00 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A multilayer structure comprising at least three different layers A, B and C,
wherein the layer B is disposed between the layer A and the layer C and is capable of binding the layer A to the layer C, and wherein
the layer A comprises a polylactide (PLA) polymer and optionally a nucleating agent,
the layer B comprises a poly(lactide-co-glycolide) (PLGA) polymer having more than 30 mol % of lactide, and
the layer C comprises a poly(lactide-co-glycolide) (PLGA) polymer having from 2 to 30 mol % of lactide.