B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 27/08 (2006.01) B32B 27/32 (2006.01)
Patent
CA 2122284
A paper-like white-opaque heat-sealable polypropylene film A b s t r a c t The invention relates to a white-opaque biaxially orientated multilayer film with good heat-sealing properties and with a paper-like appearance on at least one side, comprising an opaque core and at least one outer layer made of: 10-15% by weight of an isotactic polypropylene having a density of 0.9-0.91 g/cm3 and a melt-flow index of 0.5 g/10 min to 8 g/10 min at 230°C under 21.2 N load (determined to DIN 53735), 5-15% by weight of a low-density linear copolymer of ethylene, modified with rubber and with maleic acid anhydrite, 40-80% by weight of a statistical propylene/ethylene copolymer with 2 to 6% by weight of ethylene or statistical terpolymers of propylene, ethylene and butylene with a comonomer content of < 15% by weight and a butylene content of < 7% by weight and 5-15% by weight of an inorganic filler, preferably rutile- type titanium dioxide with an average diameter of 200 nm.
Albinus Eberhard
Bohner Jurgen
Krallmann Anton
Neelen Neele
Reiners Ulrich
Fetherstonhaugh & Co.
Wolff Walsrode Ag
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