| abstract |
A propylene/ethylene/1-hexene terpolymer containing from 1.0 wt% to 2.5wt%, of ethylene derived units and from 2.0wt% to 4.0wt% of 1-hexene derived units, the sum of the amounts of propylene, ethylene and 1-.hexene derived units being 100, having the following features: a) the amount (Wt%) of 1-hexene (C6) and the amount (Wt%) of ethylene (C2) fulfil the following relation: C2<-0.18C6+2.86 b) Polydispersity index (PI) ranging from 2 to 10; c) melting temperature ranging from 125° C, to 139° C; d) solubility in xylene at 25°C below 10 wt%; e) melt index (MFR) of from 4 to 6 g/10' dg/min, according to ISO method 1133. f) crystallization temperature ranging from 85°C to 100°C. |