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AssigneeMetallized Products, Inc.
InventorMartin J. Wilheim
Estimating the term…
An improved method of and apparatus for producing preferably thin plastic protective film layers for thin shiny copper foils and the like, as for PCB applications, with electric-charge adhering of the same to the foil and with peel-off releasable properties to provide the same original pristine, shiny copper foil surface without contamination, marring or other physical, chemical or other residue despite handling and other processing procedures.
A method of protecting a smooth high finish shiny thin conducting copper foil as for PCB and copper clad laminate use, that comprises, electrostatically permanently charging a protective masking insulating plastic film pre-treated with a release surface;
A method of protecting a smooth high finish shiny surface substrate, that comprises, electrostatically permanently charging a protective masking insulating plastic or paper film pre-treated with or without a release surface;
Apparatus for producing a protective smooth high finish thin conducting copper foil as for PCB use, having, in combination, a plastic film web roll unwinding station;
A protected copper foil laminate product comprising a thin copper foil as for PCB use, having laminated on a surface of the foil, a substantially permanently electrostatically charge-attached protective plastic film.
A rolled web of permanently electrostatically surface-charged polyester plastic film laminate having a coating of a thin release layer of a cured release acrylated/epoxy, urethane oligomer and/or oligomer-blended resin on at least one side of the film.
Dependencies are inferred from the claim text.