POLYESTER FILM AND RELEASE FILM

Japanese Patent JP2023007424

A

To provide a polyester film and a release film which enable manufacture of a ceramic green sheet where occurrence of uneven defects is suppressed when the release film obtained by using a polyester film after long-term storage is used in manufacture of the ceramic green sheet.SOLUTION: A polyester film in the present invention has a particle-containing layer containing particles, a polyester base material which does not substantially contain particles, and a particle-free layer which does not substantially contain particles, in this order, wherein a release layer is formed on the surface opposite to the polyester base material of the particle-free layer, and is used for manufacturing a release film, and the particle-free layer contains a non-polyester resin other than a polyester resin.SELECTED DRAWING: None

JP6483159	Thermosetting adhesive compositions, thermosetting adhesive films, and composite films
WO/2002/018136	POLYMERIC COMPOSITES OF CHLOROTRIFLUOROETHYLENE FOR USE IN ARCHITECTURAL LOAD-BEARING STRUCTURES
JPH09309284	MANUFACTURE OF IC CARD

TAKEGAMI RYUTA
ITO TADASHI
MIYAKE KAZUHITO

JP2022091678A

January 18, 2023

June 06, 2022

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FUJIFILM CORP

B32B27/00; B32B27/36

Hideaki Ito
Fumio Mihashi

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