Patent ID: 11952489
Assignee: BIO-TECH BIOLOGISCHE NATURVERPACKUNGEN GMBH & CO. KG
Field: Surface technology, coating (Chemistry)
Classification: CPC C  B | IPC C

Claim 0:
1. A single-layer film, wherein the single-layer film comprises:
10 to 50 wt. % of a component A and 50 to 90 wt. % of a component B, based on the sum of the components A and B,
wherein component A is selected from the group consisting of polymers that are obtainable from ring-opening polymerization and have a glass transition temperature (Tg) lower than −30° C.,
wherein component B is selected from the group consisting of thermoplastic aliphatic copolyesters and mixtures thereof,
wherein the film has a total thickness of 1 to 200 μm, and
wherein the film is free of starch,
wherein
the component B is selected from the group consisting of poly(3-hydroxybutyrate-co-3-hydroxyvalerate), poly(3-hydroxybutyrate-co-3-hexanoate), poly(butylene adipate-co-succinate), and mixtures thereof, the poly(butylene adipate-co-succinate) having a number-average molecular weight of 50,000 to 500,000 g/mol; and

wherein
the film comprises 0.1 to 30 wt. % poly(butylene adipate-co-terephthalate), based on the total weight; or
the film comprises 0.1 to 30 wt. % poly(butylene sebacate-co-terephthalate), based on the total weight.