Multilayer plastic film
AssigneeMacro Technology Inc.
InventorsMiroslav Planeta, Harinder Tamber
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Abstract
A novel multilayer plastic film is provided comprising a series of component layers and optionally bonding layers to tie said component layers together, said component layers comprising: a central oxygen barrier layer, a first polymeric barrier layer on a first side of said central oxygen barrier layer, a second polymeric barrier layer on a second side of said central oxygen barrier layer, an outer layer adjacent the first polymeric barrier layer for providing mechanical strength, and a sealant layer adjacent the second polymeric barrier layer. At least one layer comprises two different polymers.
Claims32
A multilayer film having at least five component layers and optionally, a series of bonding layers tying said component layers together, said component layers comprising:
- a central oxygen barrier layer;
- a first polymeric barrier layer on a first side of said central oxygen barrier layer;
- a second polymeric barrier layer on a second side of said central oxygen barrier layer;
- an outer layer adjacent said first polymeric barrier layer;
- and
- a sealant layer adjacent said second polymeric barrier layer;
- wherein at least one layer comprises two polymers that exhibit different properties.
The multilayer film of claim 22, wherein the central oxygen barrier comprises an EVOH layer with a polyamide layer on each side thereof, and the outer layer is PETG.
Dependencies are inferred from the claim text.