Patent ID: 11858191
Assignee: KUHNE ANLAGENBAU GMBH
Field: Surface technology, coating (Chemistry)
Classification: CPC B | IPC B

Claim 6:
7. A multilayered, coextruded, biaxially stretched, and relaxed composite film, comprising at least a first layer, a second layer and a third layer, wherein:
the first layer forms an outward surface of the composite film;
the third layer forms a surface of the composite film facing or coming in contact with a good to be packaged; and
the second layer is disposed between the first layer and the third layer;
wherein the second layer consists of a single layer or a plurality of layers;
wherein a residual stretch factor of the composite film in a machine direction is at most 5.0;
wherein a residual stretch factor of the composite film in a transversal direction is at most 5.0;
wherein the first layer comprises a thermoplastic resin having a density of greater than 1.00 g/cm3;
wherein the second layer or the plurality of the plurality of the second layers each comprises a thermoplastic resin having a density of greater than 1.00 g/cm3; and
wherein the third layer comprises a thermoplastic resin having a density of less than 0.95 g/cm3.