FIELD: chemistry.
SUBSTANCE: claimed invention relates to a propylene composition with beta-nucleating agents and can be used for obtaining a porous polymer film. The polymer composition contains polypropylene and a beta-nucleating agent, consisting of (a) solid-phase substrate from natural mineral particles, a composition of which includes calcium carbonate, magnesium carbonate, magnesium/calcium carbonate or any mixture on their basis; (b) on the basis of a solid-phase substance from mineral particles there are (b1) salt of dicarboxylic acid and (b2) dispersing and/or abrasive agent. A method of obtaining the porous polymer film includes obtaining the film from the polymer composition and giving the film biaxial orientation.
EFFECT: invention makes it possible to improve mechanical properties of the polypropylene composition, increase its toughness and stress crack resistance.
14 cl, 3 tbl
| Title | Year | Author | Number |
|---|---|---|---|
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| ABRASIVE CLEANING COMPOSITION | 2014 |
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| PROCESSED PRODUCTS OF MINERAL FILLERS, METHODS OF THEIR OBTAINING AND APPLICATION | 2011 |
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