	US 11,702,534 B2
	Biocompatible low impact CO₂emission polymer compositions, pharmaceutical articles and methods of preparing same
Camila Pilatti Mainka, São Paulo (BR); Amel Murgic, Cologne (DE); Thaysa Pando, São Paulo (BR); and Cristhian Oliveira, São Paulo (BR)
Assigned to Braskem S.A., Camaçari (BR)
Filed by Braskem S.A., Camaçari (BR)
Filed on Nov. 29, 2021, as Appl. No. 17/537,090.
Claims priority of provisional application 63/118,824, filed on Nov. 27, 2020.
Prior Publication US 2022/0169840 A1, Jun. 2, 2022
Int. Cl. C08F 10/02 (2006.01); C08L 23/06 (2006.01); A61J 1/06 (2006.01); B29C 49/00 (2006.01); B29C 49/04 (2006.01); B29D 22/00 (2006.01); B29K 23/00 (2006.01)

CPC C08L 23/06 (2013.01) [A61J 1/065 (2013.01); B29C 49/0005 (2013.01); B29C 49/04 (2013.01); B29D 22/003 (2013.01); B29K 2023/0633 (2013.01); C08F 10/02 (2013.01); C08L 2203/02 (2013.01); C08L 2203/10 (2013.01); C08L 2207/066 (2013.01)]

35 Claims

1. A biobased polymer composition for pharmaceutical articles, the biobased polymer composition comprising:

a low density polyethylene, in which at least a portion of ethylene is obtained from a renewable source of carbon,

wherein the biobased polymer composition exhibits an Emission Factor in a range from −3.5 kg CO_2e/kg of the biobased polymer composition to 0 kg CO_2e/kg of the biobased polymer composition; and

wherein the biobased polymer composition is biocompatible for use in pharmaceutical packaging as defined in European Pharmacopoeia 10th Edition 2021 (10.4 and 10.5) Chapter 3.1.4.