Title:
FILM, METAL-CLAD LAMINATE, FLEXIBLE SUBSTRATE, FILM PRODUCTION METHOD, METAL-CLAD LAMINATE PRODUCTION METHOD, AND FLEXIBLE SUBSTRATE PRODUCTION METHOD
Document Type and Number:
Japanese Patent JP2020110972
Kind Code:
A
Abstract:
To provide a polyimide film that has a high structural symmetry and an excellent dimensional stability, and to provide a metal-clad laminate.SOLUTION: Provided is a film, including a substrate layer 14 made of a polyimide for substrate obtained from pyromellitic dianhydride and m-tolidine, a first adhesive layer 12 formed on one surface of the substrate layer 14 and made of a first thermoplastic polyimide, and a second adhesive layer 16 formed on the other surface of the substrate layer and made of a second thermoplastic polyimide, and in which the maximum height roughness of a first interface between the substrate layer 14 and the first adhesive layer 12 and the maximum height roughness of a second interface between the substrate layer 14 and the second adhesive layer 16 are 1.0 μm or less.SELECTED DRAWING: Figure 1
Inventors:
SHIRONO TAKAFUMI
PARK SOONYONG
PARK YOUNGSEOK
PARK SOONYONG
PARK YOUNGSEOK
Application Number:
JP2019003369A
Publication Date:
July 27, 2020
Filing Date:
January 11, 2019
Export Citation:
Assignee:
LG CHEMICAL LTD
International Classes:
B32B27/34; B32B15/08; B32B27/00; H05K1/03; H05K3/00
Domestic Patent References:
| JP2011149067A | 2011-08-04 | |||
| JP2017200759A | 2017-11-09 | |||
| JP2018145303A | 2018-09-20 | |||
| JP2016193543A | 2016-11-17 | |||
| JP2017144730A | 2017-08-24 | |||
| JP2008087254A | 2008-04-17 | |||
| JP2017179149A | 2017-10-05 |
Foreign References:
| WO2008004496A1 | 2008-01-10 | |||
| WO2012133594A1 | 2012-10-04 | |||
| WO2006107043A1 | 2006-10-12 | |||
| WO2016013627A1 | 2016-01-28 |
Attorney, Agent or Firm:
Shinya Mitsuhiro
Takashi Watanabe
Takashi Watanabe