PROTECTIVE POLYESTER FILM FOR PHOTOSENSITIVE ADHESIVE RESIN

PROBLEM TO BE SOLVED: To provide a protective polyester film for a photosensitive adhesive resin which has good preservability as a protective film, which can be smoothly exfoliated and transfer of which to a photosensitive adhesive resin surface is extremely small at the time of exfoliation and whi...

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Bibliographische Detailangaben
1. Verfasser:	YONEDA ISAO
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G APPARATUS SPECIALLY ADAPTED THEREFOR CHEMISTRY CINEMATOGRAPHY COMPOSITIONS BASED THEREON ELECTROGRAPHY GENERAL PROCESSES OF COMPOUNDING HOLOGRAPHY LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MATERIALS THEREFOR METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS ORIGINALS THEREFOR PERFORMING OPERATIONS PHOTOGRAPHY PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES PHYSICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a protective polyester film for a photosensitive adhesive resin which has good preservability as a protective film, which can be smoothly exfoliated and transfer of which to a photosensitive adhesive resin surface is extremely small at the time of exfoliation and which is suitable for various optical uses or the like. SOLUTION: The protective polyester film for the photosensitive adhesive resin has a coating layer at least on one side and simultaneously satisfies formula (1): CwC≥90 and formula (2): CwT≤20, wherein CwC denotes a waterdrop contact angle (°) of a coating layer surface and CwT denotes variation (°) of the waterdrop contact angle of a pressurized surface of a polyethylene terephthalate film when the polyethylene terephthalate film of 38 μm thickness and the coating layer surface are brought into press-contact with each other with press-contacting force of 10 kg/cm2for 10 minutes under environment of 20±2°C and 65±5%RH. COPYRIGHT: (C)2009,JPO&INPIT