FIELD: chemistry.
SUBSTANCE: invention relates to food product packaging materials which include wrappers, containers, laminated plastics, sausage casing or their combination, which have the desired combination of at least two properties such as impermeability, hardness, extrusion resistance, bubble resistance, film strength, welding window and polarisation efficiency or rate. The article has a monolayer film obtained through extrusion blowing from a composition which contains at least one vinylidene chloride polymer which contains vinylidene chloride and at least one alkylacrylate selected from methylacrylate, ethylacrylate or butylacrylate or their combination in amount of 3.8-7.5 mol % of monomer content of the vinylidene chloride polymer and at least one plasticiser present in amount of 3-9 pts. wt per hundred parts of the polymer, and selected from ester plasticisers and combinations of ester plasticiser and epoxy plasticiser, where alkylacryate is present in amount which results in at least four defined characteristics. The invention also includes a method of moulding films used in the said articles.
EFFECT: improved technical characteristics of the polymer.
10 cl, 2 dwg, 3 tbl, 8 ex
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