Title:
ポリイミド系フィルム
Document Type and Number:
Japanese Patent JP6940581
Kind Code:
B2
Abstract:
[Problem] To provide a transparent polyimide film having excellent flexibility. [Solution] Provided is a polyimide film which meets requirement (I): (I) the maximum value of I(q)/F(q) is more than 1.5 at 0.003 < q ≤ 0.018 when the tangent line at q = 0.03 is defined as F(q) in a small-angle X-ray scattering profile I(q) of the polyimide film, wherein the small-angle X-ray scattering profile I(q) is created by the double logarithmic plot of a wavenumber q (unit: Å-1) and a scattering intensity I.
Inventors:
Junichi Ikeuchi
Hiroshi Hamamatsu
Takashi Sakurai
Lee Sung Mei
Lu Chiaki
Shigenori Hayashi
Hiroshi Hamamatsu
Takashi Sakurai
Lee Sung Mei
Lu Chiaki
Shigenori Hayashi
Application Number:
JP2019234989A
Publication Date:
September 29, 2021
Filing Date:
December 25, 2019
Export Citation:
Assignee:
Sumitomo Chemical Co., Ltd.
International Classes:
C08G73/10; C08J5/18; C08K3/36; C08L79/08; G02B5/30
Domestic Patent References:
| JP6640223B2 |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshinori Shimizu
Takashi Mikami
Yoshinori Shimizu
Takashi Mikami