Printable Polypropylene Slip Film and Laminate Packaging
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United States of America Patent
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Issued Date -
Feb 6, 2014
app pub date -
Aug 6, 2012
filing date -
Aug 6, 2012
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Abstract
A flexible, low haze multi-layer film comprising a print skin layer; a slip skin layer comprising from 0.5 wt % to 10 wt % of a surface cross-linked oil or gum polyalkylsiloxane; and a core layer comprising polypropylene between the skin layers; wherein the oily polyalkylsiloxane may have a viscosity within the range of from 10,000 to 100,000 cSt (25° C.) when not cross-linked; or wherein the gum polyalkylsiloxane may have a viscosity within the range of from 1,000,000 to 50,000,000 cSt (25° C.) when not cross-linked. Such multi-layered film can be adhered on the print skin layer side to an adhesive substrate, wherein the adhesive substrate comprises a cold seal adhesive opposite the multi-layer film to form a laminate packaging.
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