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US 5,631,066 AGranted
Process for making metalized films and films produced therefrom
AssigneeChronopol, Inc.
InventorWilliam G. O'Brien
Life of this patent
Estimating the term…
Abstract
A process for producing metalized packaging films comprises the step of sputtering a metal, such as aluminum, gold, silver, copper, platinum, nickel, titanium or tantalum onto a biodegradable poly(hydroxy acid), preferably poly(lactic acid) film, which may then be adhered to a cellulosic substrate if desired.
Claims12
A metalized packaging film comprising (a) a biodegradable poly(hydroxy acid) film having a thickness of 25-125 micrometers having adhered to one side thereof (b) a metal coating having a thickness of 20-50 nanometers, wherein the coating metal is selected from the group consisting of Al, Au, Ag, Pt, Cu, Ni, Ti and Ta.
Dependencies are inferred from the claim text.