Title:
AROMATIC POLYIMIDE FILM AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2006/104228
Kind Code:
A1
Abstract:
Disclosed is an aromatic polyimide film having specific elastic modulus and thermal expansion coefficient. Also disclosed is a method for producing such an aromatic polyimide film. Specifically disclosed is an aromatic polyimide film which is composed of an aromatic polyimide containing not less than 70 mol% of repeating units represented by the following formula (I): (I) while satisfying the following relations (1) and (2): CTEMD ≤ -11 × MiMD + 70 (1) CTETD ≤ -11 × MiTD + 70 (2) wherein CTEMD represents the in-plane thermal expansion coefficient (ppm·K-1) in the machine direction; CTETD represents the in-plane thermal expansion coefficient (ppm·K-1) in the transverse direction; MiMD represents the elastic modulus (GPa) in the machine direction; and MiTD represents the elastic modulus (GPa) in the transverse direction. Also specifically disclosed is a method for producing such an aromatic polyimide film.
Inventors:
Ishiwata, Toyoaki (C/O Iwakuni Research Center, Teijin Limited 2-1 Hinodecho, Iwakuni-sh, Yamaguchi 14, 74000, JP)
Matsuo, Jyuhou (C/O Tokyo Research Center, Teijin Limited 3-2, Asahigaoka 4-chome, Hino-sh, Tokyo 65, 19100, JP)
Kido, Nobuaki (C/O Teijin Limited, 1-1 Uchisaiwaicho 2-chome, Chiyoda-k, Tokyo 11, 10000, JP)
Matsuo, Jyuhou (C/O Tokyo Research Center, Teijin Limited 3-2, Asahigaoka 4-chome, Hino-sh, Tokyo 65, 19100, JP)
Kido, Nobuaki (C/O Teijin Limited, 1-1 Uchisaiwaicho 2-chome, Chiyoda-k, Tokyo 11, 10000, JP)
Application Number:
PCT/JP2006/306983
Publication Date:
October 05, 2006
Filing Date:
March 27, 2006
Export Citation:
Assignee:
TEIJIN LIMITED (6-7 Minamihommachi 1-chome, Chuo-ku, Osaka-sh, Osaka 54, 54100, JP)
Ishiwata, Toyoaki (C/O Iwakuni Research Center, Teijin Limited 2-1 Hinodecho, Iwakuni-sh, Yamaguchi 14, 74000, JP)
Matsuo, Jyuhou (C/O Tokyo Research Center, Teijin Limited 3-2, Asahigaoka 4-chome, Hino-sh, Tokyo 65, 19100, JP)
Kido, Nobuaki (C/O Teijin Limited, 1-1 Uchisaiwaicho 2-chome, Chiyoda-k, Tokyo 11, 10000, JP)
Ishiwata, Toyoaki (C/O Iwakuni Research Center, Teijin Limited 2-1 Hinodecho, Iwakuni-sh, Yamaguchi 14, 74000, JP)
Matsuo, Jyuhou (C/O Tokyo Research Center, Teijin Limited 3-2, Asahigaoka 4-chome, Hino-sh, Tokyo 65, 19100, JP)
Kido, Nobuaki (C/O Teijin Limited, 1-1 Uchisaiwaicho 2-chome, Chiyoda-k, Tokyo 11, 10000, JP)
International Classes:
C08J5/18; B29C41/24; B29C55/12; C08G73/10; B29K79/00; B29L7/00; C08L79/08
Attorney, Agent or Firm:
Ohshima, Masataka (Ohshima Patent Office, BN Gyoen Building 17-11, Shinjuku 1-chome, Shinjuku-k, Tokyo ., 160-0022, JP)
Download PDF:
Previous Patent: METHOD OF REGULATING WATER CONTENT OF MATERIAL
Next Patent: METHOD OF CARRYING BOTTOM MANTEL FOR BLAST FURNACE
Next Patent: METHOD OF CARRYING BOTTOM MANTEL FOR BLAST FURNACE