Thermoformable release liner

Details Thermoformable release liner Thermoformable release liner

1974-06-07

1976-07-27

Van Balen, William J.

Stock material or miscellaneous articles

Layer or component removable to expose adhesive

Halogen containing compound

156218, 156229, 264 92, 428174, 428332, 428451, 428474, B32B 100, B32B 706

Patent

active

039718662

ABSTRACT:
Thermoformable release liner for use in sheet products subjected to deep-draw thermoforming operations and which may be readily removed as generally one piece by hand-pulling after the thermoforming operation is completed, comprises a multilayer structure including (a) a reinforcing layer of a material that, although it is unsuitable for use as the complete release liner, provides useful properties when used as a thinner layer of the release liner, and (b) at least one additional layer adhered to the reinforcing layer to give body to the release liner.

REFERENCES:
patent: 3452861 (1969-07-01), Erwin
patent: 3468744 (1969-09-01), Reinhart
patent: 3507733 (1970-04-01), Davidson
patent: 3509991 (1970-05-01), Hurst
patent: 3518158 (1970-06-01), Hurst
patent: 3565750 (1971-02-01), Evans
patent: 3749593 (1973-07-01), Keiser

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