Patent ID: 7074468

Claim:
A process for the manufacture of a fuel tank comprising: 1) copolymerizing ethylene and at least one C 3-10 Î±-olefin in the presence of a metallocene catalyst in a slurry reactor at a pressure of 5 to 80 bars to give a polymer composition having the following properties: i) MFR 2 =2â€“10 ii) MFR 21 /MFR 2 =15â€“20 iii) density=925â€“950 kg/m 3 iv) molecular weight distribution Mw/Mn 2.1â€“3.5, 2) if necessary, forming said polymer into powder or pellets of 0.1â€“1 mm in size; and 3) rotomoulding said pellets to form said fuel tank.