METHOD OF PRODUCING EXTRUDED POLYMER FILM AND APPLICATION OF SAID FILM Russian patent published in 2011 - IPC B29C47/06 C08J5/18 B29C59/00 B65D75/58 

FIELD: process engineering.

SUBSTANCE: proposed method allows producing extruded one- or multilayer polymer film 8 with a structure produced therein at least partially. Said film is produced by stamping. Finished film 8 features thickness of 1 to 1500 mcm, preferably, of 30 to 300 mcm. Structure features depth of 1 to 1000 mcm, preferably of 5-300 mcm, particularly preferably, of 10-20 mcm. Width of structure groove 9 makes 1-1000 mcm, preferably, 10-500 mcm, particularly preferably, 40-80 mcm. Distance between structure grooves 9 makes 1-1000 mcm, preferably, 100-500 mcm, particularly preferably, 200-300 mcm. Note here that produced may be linear or linear-crossed structure with grooves 9. Said film is intended for packing and may be produced as described in invention claims. Said polymer film 8 is jointed with other layers of package materials 6, 7, and polymer film 8 is supplemented by other layers of package materials 6, 7, and package breakage pattern is defined by polymer film 8.

EFFECT: polymer film that allows ease of marking, breaking at preferable direction.

15 cl, 5 dwg