CONTAINERS COMPRISING PROPYLENE-BASED TERPOLYMERS

摘要

A container comprising a propylene, ethylene, 1-butene terpolymer wherein in the terpolymer: i) the content of ethylene derived units ranges from 0.5 wt. % to 1.8 wt. %; ii) the content of 1-butene derived units ranges from 1.5 wt. % to 2.5; iii) the ratio C2wt%/C4wt% ranges from 0.40 to 0.80; wherein C2wt% is the weight per cent of ethylene derived units and C4wt% is the weight per cent of 1-butene derived units; iv) the melt flow rate, MFR measured according to ISO 1133, 230° C, 2.16 kg ranges from 30 to 80 g/10 min; v) the xylene soluble fraction at 25 °C is lower than 5.0 wt. %; vi) the melting point is higher than 140°C.