Basell Poliolefine Italia S.r.l.

Sandro Bolognesi

Monica Galvan

Giampaolo Pellegatti

Francesca Tisi

Andreas Neumann

A polyolefin composition made from or containing (A) from 90.0 to 99.0 wt % of a first propylene ethylene copolymer wherein (i) the ethylene derived units is between 1.0 and 8.0 wt %; (ii) the melting temperature ranges from 135 to 155&#xb0; C.; (iii) the melt flow rate (230&#xb0; C./5 kg ISO 1133) ranges from 0.2 to 3.5 g/10 min; (iv) the xylene solubles at 25&#xb0; C. ranges from 10.0 to 4.0 wt %; (v) the polydispersity index ranges from 3.0 to 7.0; and (B) from 1.0 to 10.0 wt % of a second propylene ethylene copolymer (i) containing from 8.0 to 20.0 wt % of ethylene derived units; and having a MFR (measured at 190&#xb0; C. 2.16 kg of load) between 0.5 and 5.0 g/10 min, wherein (a) the resulting polyolefin composition has a melt flow rate (230&#xb0; C./5 kg ISO 1133) ranging from 0.2 to 4.0 g/10 min and (b) the sum A+B being 100.

Propylene-based copolymer composition for pipes

A polyolefin composition made using a propylene/ethylene copolymer (90.0 wt % to 99.0 wt %) and a heterophasic (second) propylene/ethylene copolymer (1.0 wt % to 10.0 wt %). The composition is useful for the production of pressure pipes, e.g., for use at low temperature, and of pipes for use in heat radiating systems, among other applications. The propylene/ethylene copolymer has between 1.0 wt % and 8.0 wt % ethylene derived units. The second propylene/ethylene copolymer is made using (1) a propylene homopolymer or a propylene/ethylene copolymer (12 wt % to 52 wt %) and (2) a propylene ethylene copolymer (48 wt % to 88 wt %) that has a content of ethylene derived units ranging from 15.0 wt % to 42.0 wt %.

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Ferrara, Italy

Sandro Bolognesi