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Title:
RELEASE FILM FOR MANUFACTURING CERAMIC GREEN SHEET
Document Type and Number:
WIPO Patent Application WO/2023/080026
Kind Code:
A1
Abstract:
Provided is a release film for manufacturing a ceramic green sheet, the release film exhibiting excellent releasability, wherein transfer and omission of a release layer and adherence defects do not easily occur.　The present invention pertains to a release film for manufacturing a ceramic green sheet, the release film comprising a polyester film and a release layer. The release layer is obtained by curing a curable composition comprising: a polysiloxane A having two or more intramolecular alkenyl groups; a polysiloxane B having two or more intramolecular hydrosilyl groups; and an adherence-imparting agent C, and is characterized in that the surface free energy γS (mJ/m2) at the surface of the release layer and a hydrogen bond component γSVh (mJ/m2) of γS satisfy expression (a) and expression (b).　(a): 1.0 ≤ γSVh/γS*100 ≤ 6.5; (b): γS ≤ 30

Inventors:
YAMAMOTO YUICHIRO (JP)
SHIBATA YUSUKE (JP)
Application Number:
PCT/JP2022/039881
Publication Date:
May 11, 2023
Filing Date:
October 26, 2022
Export Citation:
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Assignee:
TOYO BOSEKI (JP)
International Classes:
B32B27/00; B28B1/30; B32B27/36
Domestic Patent References:
WO2016060084A12016-04-21
WO2016052171A12016-04-07
WO2019088184A12019-05-09
WO2021003349A12021-01-07
WO2019059329A12019-03-28
WO2021113058A12021-06-10
Foreign References:
JP2018193463A2018-12-06
JP2003292895A2003-10-15
JP2021024175A2021-02-22
JP2022147557A2022-10-06
JPH0616941A1994-01-25
JP6619200B22019-12-11
JP2022037484A2022-03-09
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (JP)
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