Title:
RELEASE FILM AND METHOD FOR MANUFACTURING RELEASE FILM
Document Type and Number:
WIPO Patent Application WO/2021/075071
Kind Code:
A1
Abstract:
An objective of the present invention is to provide a release film having static-diffusing properties. The present invention provides a release film that comprises a base layer formed from a polyester resin, and a surface layer formed from a tetrafluoroethylene resin containing an electrically conductive filler; and has a surface resistivity Rs of 1×1011Ω or less. Preferably, the electrically conductive filler contains carbon black, and the tetrafluoroethylene resin further contains particles having an average particle size of 1 μm to 15 μm as measured via laser diffraction particle size analysis.
Inventors:
SAKAI KEISUKE (JP)
TANAKA NANAE (JP)
TANAKA NANAE (JP)
Application Number:
PCT/JP2020/009726
Publication Date:
April 22, 2021
Filing Date:
March 06, 2020
Export Citation:
Assignee:
KOBAYASHI & CO LTD (JP)
International Classes:
B29C33/68; B32B27/18; B32B27/30; H01L21/56; B32B27/00; B32B27/36
Domestic Patent References:
| WO2017199440A1 | 2017-11-23 | |||
| WO2015133634A1 | 2015-09-11 | |||
| WO2016203890A1 | 2016-12-22 |
Foreign References:
| JP2003334903A | 2003-11-25 | |||
| JP2002280403A | 2002-09-27 | |||
| JP2010040286A | 2010-02-18 | |||
| JP2014118514A | 2014-06-30 | |||
| JPH0262532B2 | 1990-12-26 | |||
| JP2018013512A | 2018-01-25 | |||
| JP2006049850A | 2006-02-16 |
Attorney, Agent or Firm:
INOUE Miwako (JP)
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