FIELD: chemistry.
SUBSTANCE: invention relates to propylene polymers, having specific values of total comonomer content and melting point. Described is a propylene polymer having total content of links obtained from ethylene of 4.5-6.0 wt %. The polymer has melting point of 148°-160°C. The invention also describes a gas-phase polymerisation method for obtaining a propylene polymer, a method of producing moulded articles and a moulded article obtained using blow extrusion.
EFFECT: obtaining a propylene polymer having good balance of physical and mechanical properties which can improve efficiency of extrusion methods.
6 cl, 2 tbl, 3 ex
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