FIELD: materials packing. SUBSTANCE: packing material is designed for making packing containers impermeable to moisture. Material has inner layer made of thermoplast and filler introduced into thermoplast by mixing in amount of 30-70 % of total weight of packing material. Thermoplast of inner layer consists of mixture of first thermoplast made of propylene homopolymer or ethylene-propylene copolymer, and second thermoplast - of polyethylene. Packing containers can be made of web or sheet of packing material by bending and thermally sealing and other methods, for instance, blow forming and thermoforming. EFFECT: increased strength and shape holding ability of containers. 7 cl, 4 dwg
Authors
Dates
1999-03-27—Published
1994-04-28—Filed