FILMS BASED ON CROSS-LINKED POLYMERS AND ARTICLES MADE THEREFROM Russian patent published in 2014 - IPC C08J5/18 C08L23/04 C08L23/14 C08L23/18 C08J3/24 C08J3/28 B32B27/32 B32B3/00 

FIELD: chemistry.

SUBSTANCE: invention relates to heat sealable films, laminated materials, membranes or other polymer articles based on cross-linked polymers, having rubber-like heat resistance (heat deformation) and dimensional stability at temperature higher than the melting point of the polymer, while maintaining properties of the compound obtained by heat sealing (heat-adhesive compound). The heat sealable film contains at least one layer formed from a composition containing A) at least one polymer selected from a group comprising i) an ethylene-based polymer, ii) an ethylene/α-olefin/diene interpolymer and iii) a polymer based on a C4-C10 olefin, and B) at least one polymer selected from a group consisting of a propylene/ethylene interpolymer and a propylene/α-olefin interpolymer. Said film is cross-linked using radiation and/or chemical reagents.

EFFECT: polymer films and articles disclosed herein have improved mechanical properties and improved puncture resistance and can be used for high-temperature filling and processing in thermal or radiation sterilisation conditions, and as stretch films and shrink films.

13 cl, 9 dwg, 8 tbl