MULTILAYER FILM AND METHOD OF ITS MANUFACTURE Russian patent published in 2015 - IPC B32B15/00 B32B27/32 

Abstract RU 2555040 C1

FIELD: packaging industry.

SUBSTANCE: method of manufacturing high-barrier metallised co-extruded film comprises the formation of successive layers of material. On the upper pretreated surface of one of which, made of biaxially oriented polypropylene, a metallised layer is applied in a vacuum, with an optical density of 2.4 and thickness 120÷140 mcm, and on its lower surface with a temperature of 105÷140°C the heat sealable layer is applied. In addition, the method comprises formation of an oxygen-shielding vapour-water-resistant barrier layer which is attached with an adhesive to the untreated layer of low pressure polyethylene.

EFFECT: method enables to obtain a film having good barrier properties to UV radiation, low friction coefficient, low permeability to oxygen and water vapour, which enables to store the product packed in it for a long time without losing its quality.

11 cl, 1 tbl

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RU 2 555 040 C1

Authors

Gogin Dmitrij Jur'Evich

Avdonin Aleksej Vladimirovich

Zemskov Aleksandr Efimovich

Nemoljaev Evgenij Aleksandrovich

Karaev Kazbek Georgievich

Kavunova Elena Viktorovna

Ignat'Ev Vjacheslav Vladimirovich

Andreenko Irina Jur'Evna

Skopinov Dmitrij Aleksandrovich

Zajnabitdinov Evgenij Pulatbekovich

Lemzjakov Grigorij Anatol'Evich

Titova Ekaterina Borisovna

Dates

2015-07-10Published

2014-08-12Filed