PELLICLE

The purpose of the present invention is to provide a pellicle which has, on the inner surface of the pellicle frame, a pressure-sensitive adhesive layer that has holding performance capable of satisfactorily adhering suspended substances including dust thereto and that has excellent resistance to sh...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KONDOU, MASAHIRO, TSUMOTO, TAKAMASA
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:The purpose of the present invention is to provide a pellicle which has, on the inner surface of the pellicle frame, a pressure-sensitive adhesive layer that has holding performance capable of satisfactorily adhering suspended substances including dust thereto and that has excellent resistance to short-wavelength light. This pellicle comprises a pellicle frame, a pellicle film stretched over the pellicle frame, and a pressure-sensitive adhesive layer disposed inside the pellicle frame, wherein the pressure-sensitive adhesive layer comprises a copolymer having structural units represented by formula (1) and structural units represented by formula (2), the amount of the copolymer being 60 mass% or more of the pressure-sensitive adhesive layer. €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ-CH 2 CF 2 -€ƒ€ƒ€ƒ€ƒ€ƒ(1) €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ-CF 2 CF(CF 3 )-€ƒ€ƒ€ƒ€ƒ€ƒ(2)