FIELD: chemistry.
SUBSTANCE: invention relates to a mixture of a polypropylene copolymer and a plastomer for producing films or articles for packaging suitable for printing or coating or metallisation. Mixture contains the following in wt. %: 80–93 polypropylene random copolymer and 7–20 ethylene-based plastomer. Polypropylene copolymer contains at least 1.0 wt. % ethylene as a comonomer and does not contain an elastomeric polymer phase dispersed therein. Density of plastomer based on ethylene according to ISO 1183D is 0.915 g/cm3 or less. Invention also discloses finished articles and a method of providing compositions and finished articles having improved surface tension values.
EFFECT: technical result is improvement of surface tension value over time of composition and finished products.
9 cl, 2 tbl, 15 ex
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