Polymeric Film

1 . A polymeric film comprising an alkylene oxide homo- or copolymer, wherein the film comprises i) a coherent pattern of cross-linked alkylene oxide homo- or copolymer and ii) areas of non-crosslinked alkylene oxide homo- or copolymer at one or both sides of the film.

2 . The film of claim 1 wherein the alkylene oxide homo- or copolymer is a C 2-4 alkylene oxide homo- or copolymer.

3 . The film of claim 1 comprising at least 40 weight percent of an ethylene oxide homo- or copolymer, based on the total weight of the film.

4 . The film of claim 1 additionally comprising a photoinitiator.

5 . The film of claim 4 wherein the photoinitiator is a benzophenone.

6 . The film of claim 4 comprising from 0.4 to 5 weight percent of a photoinitiator, based on the total weight of the alkylene oxide homo- or copolymer.

7 . A composite article comprising the film of claim 1 .

8 . A process for preparing the film of claim 1 comprising the steps of a) preparing a film comprising an alkylene oxide homo- or copolymer, b) shielding the film at one or both sides of the film at selected areas from irradiation such that a coherent pattern of non-shielded film material remains and c) subjecting the film to irradiation at one or both sides of the film.

9 . The process of claim 8 wherein the film is irradiated at both sides of the film.

10 . (canceled)

11 . (canceled)

12 . The film of claim 3 additionally comprising a photoinitiator.

13 . The composite article of claim 7 in the form of an adhesive film, a wound dressing film or a drug delivery film.