BLANK FOR PACKAGE MADE OF LAMINATED MATERIAL INCLUDING MOISTURE-SENSITIVE GASTIGHT LAYER, METHOD OF MANUFACTURE OF BLANK (DESIGN VERSIONS) AND PACKING CONTAINER MADE FROM BLANK Russian patent published in 2001 - IPC

Abstract RU 2175939 C2

FIELD: packing facilities. SUBSTANCE: invention relates to packing blank is made of laminated material including bearing layer and layer of moisture-sensitive gastight material placed between two layers of moisture-sensitive gastight material is absent in narrow zones in form of strips passing along both longitudinal edges of packing blank. Layer of moisture-sensitive gastight material is encapsulated in moisture-resistant material. Said layer is reliably protected from action of moist medium also along longitudinal freely accessible split edges of packing blank. Moisture-sensitive gastight material contains polyvinyl alcohol applied mainly in form of water emulsion coating with subsequent drying. EFFECT: improved gastight properties of laminated material blank. 11 cl, 4 dwg

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RU 2 175 939 C2

Authors

Bentmar Mats

Berlin Mikaehl'

Let Ib

Dates

2001-11-20—Published

1998-04-01—Filed