Title:
POLYIMIDE AND FLEXIBLE DEVICE USING SAME
Document Type and Number:
WIPO Patent Application WO/2018/079707
Kind Code:
A1
Abstract:
The present invention relates to a polyimide which is obtained from a tetracarboxylic acid component and a diamine component, and which is configured such that: a film thereof having a thickness of 10 μm has a yellowness of less than 3 and a linear expansion coefficient from 50°C to 200°C of 55 ppm/K or less; and a film thereof having a thickness of 10 μm has a light transmittance of 70% or more at a wavelength of 365 nm and a light transmittance of less than 0.1% at a wavelength of 308 nm.
Inventors:
NAKAYAMA TOMONORI (JP)
MIURA NORIO (JP)
KOHAMA YUKINORI (JP)
HISANO NOBUHARU (JP)
MIURA NORIO (JP)
KOHAMA YUKINORI (JP)
HISANO NOBUHARU (JP)
Application Number:
PCT/JP2017/038882
Publication Date:
May 03, 2018
Filing Date:
October 27, 2017
Export Citation:
Assignee:
UBE INDUSTRIES (JP)
International Classes:
C08G73/10; H05K1/03
Domestic Patent References:
| WO2016133019A1 | 2016-08-25 |
Foreign References:
| JP2009286877A | 2009-12-10 | |||
| JP2016062965A | 2016-04-25 | |||
| JP2017160360A | 2017-09-14 |
Attorney, Agent or Firm:
ITO, Katsuhiro et al. (JP)
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