MULTILAYER PACKAGING MATERIAL, METHOD OF PRODUCTION MULTILAYER PACKAGING MATERIAL, AND PACKAGING CONTAINER MADE OF IT Russian patent published in 2013 - IPC B65D5/40 B65D65/40 B65D65/42 B32B7/02 B32B27/10 B32B27/30 B32B27/32 C23C14/00 C23C16/00 

FIELD: packaging industry.

SUBSTANCE: packaging material (10a) comprises a core layer (11) of paper or cardboard, the first outer liquid-tight heat-sealable polyolefin layer (16), the second inner liquid-tight heat-sealable polyolefin layer (15) and a layer barrier for gas oxygen (12). The layer barrier for gas oxygen (12) is applied in the form of a liquid film coating of a liquid gas barrier composition directly on the inner side of the core layer (11), followed by drying. And the liquid composition comprises a polymer binder dispersed or dissolved in an aqueous medium or a solvent medium. The packaging multilayer material additionally comprises a vapor-deposited barrier layer (14) applied in the form of a coating on the polymeric film substrate. The barrier layer (14) is located between the layer barrier for gas oxygen (12) and the inner heat-sealable polyolefin layer (15) by an intermediate polymer layer (13).

EFFECT: packaging multilayer material according to the invention has good gas barrier properties suitable for long-term aseptic packaging, and good internal adhesion between the layers, providing a good integrity of the packaging container made of multilayer material, for long term storage of liquid food products while maintaining nutritional value in ambient conditions.

42 cl, 13 dwg, 2 tbl, 2 ex