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Title:
MOLD RELEASE FILM FOR CERAMIC GREEN SHEET PRODUCTION
Document Type and Number:
WIPO Patent Application WO/2020/050081
Kind Code:
A1
Abstract:
[Problem] To provide a mold release film for ceramic green sheet production, which is suppressed in deterioration of the surface roughness of a mold release layer due to aggregation during drying, thereby having high smoothness, and which has excellent releasability by adjusting the amount of a silicone component in the surface of the mold release layer. [Solution] A mold release film for ceramic green sheet production, which uses a polyester film as a base material, and which is configured such that: the base material has a surface layer A on at least one surface, said surface layer A substantially containing no particles; and a mold release layer is superposed on the surface of the surface layer A on at least one surface directly or with another layer being interposed therebetween. The mold release layer is obtained by curing a composition that contains a binder component and a silicone-based mold release agent; the Si element ratio in the mold release layer surface is from 2.0 at% to 10.0 at% (inclusive); and the mold release layer surface has a maximum profile peak height (P) of 50 nm or less and an area average roughness (Sa) of 1.5 nm or less.

Inventors:
NAKATANI MITSUHARU (JP)
SHIBATA YUSUKE (JP)
OYA KAZUYUKI (JP)
Application Number:
PCT/JP2019/033275
Publication Date:
March 12, 2020
Filing Date:
August 26, 2019
Export Citation:
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Assignee:
TOYO BOSEKI (JP)
International Classes:
B28B1/30; B32B27/18; B32B27/36; H01G4/30; H01G13/00
Domestic Patent References:
WO2015129779A12015-09-03
WO2018159247A12018-09-07
Foreign References:
JP2014012417A2014-01-23
JPH09239913A1997-09-16
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