DOUBLE-SIDE RELEASE FILM
PROBLEM TO BE SOLVED: To provide a double-side release film capable of being suitably used as a carrier film stable in peel force over a long period of time and making it possible to produce a ceramic sheet, an electrode sheet or a resin sheet with high precision and good handleability. SOLUTION: Th...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a double-side release film capable of being suitably used as a carrier film stable in peel force over a long period of time and making it possible to produce a ceramic sheet, an electrode sheet or a resin sheet with high precision and good handleability. SOLUTION: The double-side release film is composed of a polyester film, the heavy peel silicone release layer provided on one side thereof and the light peel silicone release layer provided on the other surface of the film. The peel force of this double-side release film, which is preserved in an environment with a humidity of 80% at 60°C for four weeks after the heavy peel silicone release layer and the light peel silicone release layer are formed, satisfies the formula: 1.3 |
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