Film material is formed by coextrusion of a number of plastic layers, with one or more layers composed of partially crystalline polyolefins

摘要

A film material (1) is produced by the coextrusion of a number of plastic layers. One or more plastic layers (4) consist of partially crystalline polyolefins. A further plastic layer consists of an amorphous cycloolefin copolymer (5), and the different types of layer are in direct contact with one another.