| abstract |
1-Butene Terpolymers The present invention relates to a 1-butene propylene ethylene terpolymer having a propylene derived unit content ranging from 0.1-10% by weight, and an ethylene derived unit content ranging from 1-3 wt%, having the following properties: a) a molecular weight distribution mw / mn measured by gpc of less than 3.5; b) a melting point (dsc) comprised between 60 ° C and 120 ° C; (c) a content of 1-butene units in the form of isotactic pentavalents (mmm) exceeding 95%. |