Patent ID: 6998440
Filing Date: 2006-02-14
Classification: C08J,C08L

Abstract:
1. A stretch film comprising a cling additive in amount >0.5% and having (a) dart impact of >450 g (b) MD tear strength of >190 g/25 μm (c) MD elongation at break of >450%, said film comprising a copolymer of ethylene and an alpha-olefin having from 3 to 10 carbons atoms, said copolymer having (a) a density in the range 0.900 to 0.940 (b) an apparent Mw/Mn of 2–3.4 (c) I (d) activation energy of flow from 28 to 45 kJ/mol (e) a ratio Ea(HMW)/Ea(LMW)>1.1, and (f) a ratio g′(HMW)/g′(LMW) from 0.85 to 0.95.