Patent ID: 9650457
Date: 2017-05-16
CPC Classifications: C08F,C08J,C08L

Claim:
1. A terpolymer comprising: (A) 0.5-2.2 wt. % of ethylene derived units; (B) 6.0-20.0 wt. % of 1-butene derived units; and (C) 77.8 to 93.5 wt. % of propylene derived units, wherein the terpolymer comprises: i) a weight ratio of ethylene derived units to 1-butene derived units ranges from 0.06-0.09; ii) a melt flow rate from 0.4 to 54 g/10 min; and iii) 5 to lower than 15 wt. % by weight of a xylene soluble fraction at 25° C.; and iv) a fraction soluble in hexane as measured on a 100 μm plaque of lower than or equal to 2.0 wt. %.