Title:
B-STAGE COATING FILM, LAMINATE FILM AND THREE-DIMENSIONAL MOLDED ARTICLE, AND METHODS RESPECTIVELY FOR PRODUCTION THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/140874
Kind Code:
A1
Abstract:
The present invention is a method for producing a B-stage coating film, comprising the steps of: (1) forming a wet coating film on at least one surface of a film base material using a coating material containing (A) an active-energy-ray-curable resin and (B) a photopolymerization initiator; (2) pre-drying the wet coating film formed in step (1) to form a dry coating film; and (3) subjecting the dry coating film formed in step (2) to an autoclave treatment. The method may further include a step of overlaying a protection film on the surface of the dry coating film formed in step (2) and temporality bonding the protection film subsequent to step (2) or prior to step (3). The autoclave treatment in step (3) may be carried out under such a condition that the film is retained under a pressure of 0.15 to 1 MPa at a temperature of 23 to 100°C for 1 to 60 minutes. The method may further include a step of carrying out an aging treatment subsequent to step (3). The coating material may contain (C) microparticles (which may be an antibacterial agent or an antiviral agent).
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Inventors:
WASHIO NOZOMU (JP)
ANDO MIKINORI (JP)
ANDO MIKINORI (JP)
Application Number:
PCT/JP2020/047446
Publication Date:
July 15, 2021
Filing Date:
December 18, 2020
Export Citation:
Assignee:
RIKEN TECHNOS CORP (JP)
International Classes:
B05D3/12; B05D7/04; B05D7/24; B29C43/30; B29C51/14; B32B27/16; B32B27/18; B32B27/20; B32B27/30; C09D7/61; C09D7/63; C09D133/00; C09D175/16; C09D201/00
Foreign References:
| JP2012521476A | 2012-09-13 | |||
| JP2016221922A | 2016-12-28 | |||
| JP2019151105A | 2019-09-12 | |||
| JPS52152941A | 1977-12-19 | |||
| JPS50157437A | 1975-12-19 | |||
| US20140087616A1 | 2014-03-27 | |||
| US20060024482A1 | 2006-02-02 |
Attorney, Agent or Firm:
ASAMURA PATENT OFFICE, P.C. (JP)
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