REUSABLE EASILY TORN MULTILAYER PACKAGING MATERIAL WITH GOOD BARRIER ACTIVITY AND METHOD FOR PRODUCTION THEREOF Russian patent published in 2022 - IPC B32B27/08 

FIELD: packaging.

SUBSTANCE: group of inventions relates to a multilayer packaging material and a method for production thereof. The multilayer material with a good barrier activity comprises a first layer of a multilayer material and a second layer of a multilayer material. The first layer of a multilayer material constitutes a co-extruded and stretched in the machining direction composite of a substrate layer with an HDPE content of at least 60 vol.%, a binding layer, and a barrier layer of a barrier polymer, preferably polyamide or a copolymer of ethylene and vinyl alcohol, with a maximum thickness of 20% of the total thickness of the first layer of the multilayer material. The binding layer is placed between the substrate layer and the barrier layer, and the first layer of the multilayer material is connected by the barrier layer thereof with the second layer of the multilayer material.

EFFECT: group of inventions is aimed at providing a recyclable for reuse packaging multilayer material easily torn in both directions.

15 cl, 4 dwg, 1 tbl