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US 6,746,740 B1Granted
Purified liner and method for making
Assigneeentrotech, inc.
InventorJames E. McGuire, Jr.
Life of this patent
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Abstract
An adhesive-backed flexible seal, label, damping treatment, protective film or gasket, which is suited for use on a metal housing of an electronic component, is carried, prior to application to the housing, on a liner. The liner includes a sheet of flexible liner material. Cleanliness of the release liner is imperative in hard disk drive and semiconductor applications. The present invention includes a purified liner for such use and a method of making the purified liner.
Claims7
A purified flexible liner material for supporting a pressure sensitive product comprising the following layers:
- a) a polymer support layer having a first and a second side;
- b) a first adhesive disposed on said first side of said support layer;
- c) a first release coating disposed on said first adhesive;
- d) a first polymer film layer disposed on said first release coating;
- e) a second adhesive disposed on said second side of said support layer;
- f) a second release coating disposed on said second adhesive;
- and
- g) a second polymer film layer disposed on said second release coating, wherein said purified flexible liner material comprises no more than about 100 ng/cm2 of siloxanes.
5 more elements
Dependencies are inferred from the claim text.