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1. (WO2017021136) COMPOSITION COMPRISING PROPYLENE-ETHYLENE-1-BUTENE TERPOLYMERS

Pub. No.:    WO/2017/021136    International Application No.:    PCT/EP2016/067141
Publication Date: Fri Feb 10 00:59:59 CET 2017 International Filing Date: Wed Jul 20 01:59:59 CEST 2016
IPC: C08J 5/18
C08L 23/14
Applicants: BASELL POLIOLEFINE ITALIA S.R.L.
Inventors: MASSARI, Paola
PIEMONTESI, Fabrizio
VITALE, Gianni
CATHELIN, Caroline
MORINI, Giampiero
CAVALIERI, Claudio
CIARAFONI, Marco
PANTALEONI, Roberto
Title: COMPOSITION COMPRISING PROPYLENE-ETHYLENE-1-BUTENE TERPOLYMERS
Abstract:
A polyolefin composition comprising: A) from 19 wt% to 50 wt% of a propylene ethylene copolymer having an ethylene derived units content ranging from 1.5 wt% to 6.0 wt% B) from 50 wt% to 81 wt% of a propylene ethylene 1-butene terpolymer having an ethylene derived units content ranging from 1.5 wt% and 6.0 wt% and 1-butene derived units content of between 4.8 wt% and 12.4 wt%; the sum of the amount of component A) and B) being 100; the composition being characterized by the following features: - molecular weight distribution (MWD), expressed in terms of Mw/Mn, greater than 4.0; - the creep and recovery curve measured on the polymer fuse at 200°C measured accordingto the procedure reported in the characterizing section shows a maximum value between 600 and 200 seconds lower than 53x10-4 1/Pa.