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US 2011/0214395 A1Published application
Curl-free polyolefin-based film used for the packaging of sterile products
AssigneeAmcor Flexibles Transpac NV
InventorsTony Malfait, Kris Buysens
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Abstract
The present invention relates to a coextruded multilayer polyolefin film, said polyolefin film being substantially curl-free in use, said polyolefin film comprising: a polyolefinic base layer comprising between 10% and 50% by weight of a cyclic olefin copolymer having a Tg higher than 130° C.; a polyolefinic sealing layer having a thickness between 5 and 15% of the total film thickness.
Claims9
A coextruded multilayer polyolefin film, said polyolefin film being substantially curl-free in use, said polyolefin film comprising:
- a polyolefin base layer comprising between 10% and 50% by weight of a cyclic olefin copolymer having a Tg higher than 130° C.;
- a polyolefin seal layer having a thickness between 5 and 15% of the total film thickness.
Dependencies are inferred from the claim text.