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Title:
RELEASE FILM AND METHOD OF MANUFACTURING RELEASE FILM
Document Type and Number:
WIPO Patent Application WO/2019/244447
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a release film that does not contaminate a mold or a molded article. Provided is a release film which includes a substrate layer that is formed of an easily-moldable polyethylene terephthalate resin, and surface layers that are formed of a fluorine-based resin and are laminated on two sides of the substrate layer. Also provided is a method of manufacturing the release film that includes an application step of applying a fluorine-based resin composition on the two sides of the substrate layer formed of the easily-moldable polyethylene terephthalate resin, and a curing step of curing the fluorine-based resin composition after the application step. Contamination of a mold or a molded article is prevented by molding using the release film. Moreover, the release film can be used for a plurality of times of molding.

Inventors:
SAKAI KEISUKE (JP)
IWAWAKI NORIFUMI (JP)
TANAKA NANAE (JP)
HIRAMATSU SATOSHI (JP)
KAWAFUCHI AKANE (JP)
Application Number:
PCT/JP2019/015352
Publication Date:
December 26, 2019
Filing Date:
April 08, 2019
Export Citation:
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Assignee:
KOBAYASHI & CO LTD (JP)
International Classes:
B32B27/00; B29C33/68; B32B27/30; B32B27/36; H01L21/56
Domestic Patent References:
WO2015133631A12015-09-11
WO2015133634A12015-09-11
WO2008020543A12008-02-21
Foreign References:
JP2015074201A2015-04-20
JP2006049850A2006-02-16
JP2013141793A2013-07-22
JP2017100397A2017-06-08
JP2003261702A2003-09-19
Attorney, Agent or Firm:
INOUE Miwako (JP)
Download PDF:
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