BARRIER COATED THERMO-MECHANICALLY STABLE, HEAT SEALABLE FILM, PACKAGING LAMINATE COMPRISING SAID FILM, PACKAGING CONTAINER FORMED FROM PACKAGING LAMINATE AND METHOD OF PRODUCING FILM Russian patent published in 2014 - IPC B32B17/08 B32B27/32 

FIELD: chemistry.

SUBSTANCE: invention relates to laminated polymer materials for packing food products and a barrier coated thermo-mechanically stable heat sealable film, a packaging laminate and a container made from said film. A polymer film, suitable for liquid-film carton lamination and heat-seal packaging, comprising a core layer consisting of polyethylene and comprising more than 40 wt % of a polyethylene selected from a group consisting of MDPE, HDPE, modified MDPE, modified HDPE and mixtures of two or more thereof, a heat sealing layer, which is contiguous to the core layer on a first side and consists of low-density polyethylene, and having a thin vapour deposition barrier coating on its second, opposite side. The total thickness of the polymer film ranges from 12 to 20 mcm.

EFFECT: optimising processes of producing a packaging laminate and a container, while maintaining sufficient barrier properties and the capacity to store a product.

26 cl, 9 dwg