Metallisied opaque film
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United States of America Patent
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Issued Date -
May 18, 2006
app pub date -
Feb 20, 2004
filing date -
Feb 20, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a metallised, biaxially orientated opaque polypropylene multi-layered film comprising a base layer and a first metallised cover layer and a second sealable cover layer on the opposite side. The first cover layer contains at least 80 wt. % of a propylene ethylene copolymer having an ethylene content of 1.2-<2.8 wt. % and a propylene content of 97.2 98.8 wt. % and a melting point ranging from 145-160.degree. C. and a melting enthalpy of 80-110 J/g. The first cover layer has a thickness of at least 4 .mu.m and the base layer is vacuolar. Said thick cover layer can also be made of a combination of an intermediate layer and a thin cover layer.
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