Bio-based EVA compositions and articles and methods thereof
AssigneeBraskem S.A.
InventorsGiancarlos Delevati, Omar Wandir Renck, Carlos Augusto Maia Faria, Paulo Lourenço Brito Herrmann, Marcial Cesar Vieira, Patricia Mara De Freitas Rocha, Marcelo Fioravanti das Neves, Roger Ribeiro Malmegrim
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Abstract
A polymer may include a copolymer of ethylene and vinyl acetate, in which the ethylene is at least partially obtained from a renewable source of carbon, and wherein the copolymer has a melt index (190° C./2.16 kg) ranging from 0.12 to 8.0 g/10 min according to ASTM D1238.
Claims20
A multilayer film comprising at least one layer comprising a copolymer of ethylene and vinyl acetate and at least one layer comprising at least one other polymer, the multilayer film having a thickness ranging from 20 to 120 μm, in which the ethylene is at least partially obtained from a renewable source of carbon, the vinyl acetate is present in an amount ranging from 7 to 20 wt % of the copolymer, and wherein the copolymer has a melt index (190° C./2.16 kg) ranging from 0.12 to 8.0 g/10 min according to ASTM D1238,
- wherein at least one layer of the multilayer film comprises a blend of the copolymer of ethylene at least partially obtained from the renewable source of carbon and vinyl acetate, linear low density polyethylene (LLDPE), and low density polyethylene (LDPE).
Dependencies are inferred from the claim text.