A shrink film comprising a polyethylene film, characterized in that said polyethylene is an ethylene copolymer mixture having a molecular weight distribution in the range 10 to 35, a density of 915 to 940 kg/m3, a weight average molecular weight of at least 100000 D and an MFR2.16 (190° C.) of 0.1 to 0.9 kg/m3, which copolymer mixture is produced by a two or more stage copolymerization of ethylene and 2 to 10% mole (relative to ethylene) of a C3-12 alpha-olefin comonomer in a series of reactors including at least one slurry loop reactor and at least one gas phase reactor using a heterogeneous Ziegler-Natta catalyst.
申请公布号
EP1551891(A1)
申请公布日期
2005.07.13
申请号
EP20030771171
申请日期
2003.07.29
申请人
BOREALIS TECHNOLOGY OY
发明人
MYHRE, OLE, JAN;SKAR, MERETE;DAVIKNES, HANS, GEORG;BROVE, KJETIL, LARSEN;JOHANSEN, GEIR, MORTEN