Composites of plastic films and packaging made thereof
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United States of America Patent
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Feb 7, 1995
Grant Date -
N/A
app pub date -
May 12, 1993
filing date -
May 22, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to composites of plastic films and packaging forms made thereof that feature a permeability barrier layer, said forms of packaging being made from a composite featuring, from outside to inside, for example the layers a.sub.o) a polyester film of thickness 6 to 23 .mu.m, b) a ceramic layer of thickness 10 to 500 .mu.m, for example of the general formula SiO.sub.x, a) a polyester film of thickness 6 to 23 .mu.m, if desired with a further ceramic layer b) and c) a polyolefin film of thickness 15 to 200 .mu.m. The invention relates also to the use of the packaging forms e.g. pouch, net, or self-standing pouch forms for foodstuffs, foodstuff preparations semi-luxury consumables and semi-luxury consumable preparations.
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