Title:
CARBON-BLACK-DISPERSED POLYAMIC ACID SOLUTION COMPOSITION, AND PROCESS FOR PRODUCING SEMICONDUCTIVE POLYIMIDE RESIN BELT THEREWITH
Document Type and Number:
WIPO Patent Application WO/2008/035647
Kind Code:
A1
Abstract:
A carbon-black-dispersed polyamic acid solution composition that utilizes carbon black excelling in safety and environmental adaptability and excels in the dispersion stability and fluidity of carbon black dispersed in polyamic acid solution, and that realizes high solid content and high carbon black content. Further, an intermediate transfer belt of polyimide, which gives a transfer image of high quality in a color image forming apparatus, is provided with the use of the above polyamic acid solution composition. In particular, there is provided a carbon-black-dispersed polyamic acid solution composition containing a polyamic acid solution obtained by reaction of approximately equimolar amounts of biphenyltetracarboxylic acid dianhydride and an aromatic diamine and containing a carbon black of 2 to 6% volatile content produced by oil furnace process, wherein the solid content of the solution composition is 23 wt.% or more and wherein the carbon black content of the solid is in the range of 20 to 30 wt.%.
Inventors:
NISHIURA, Naoki (163 Morikawara-cho, Moriyama-sh, Shiga 64, 5240064, JP)
西浦 直樹 (〒64 滋賀県守山市森川原町１６３番地 グンゼ株式会社 研究開発センター内 Shiga, 5240064, JP)
KURAOKA, Takashi (163 Morikawara-cho, Moriyama-sh, Shiga 64, 5240064, JP)
西浦 直樹 (〒64 滋賀県守山市森川原町１６３番地 グンゼ株式会社 研究開発センター内 Shiga, 5240064, JP)
KURAOKA, Takashi (163 Morikawara-cho, Moriyama-sh, Shiga 64, 5240064, JP)
Application Number:
JP2007/068033
Publication Date:
March 27, 2008
Filing Date:
September 18, 2007
Export Citation:
Assignee:
GUNZE LIMITED (1 Zeze, Aono-cho Ayabe-sh, Kyoto 11, 6238511, JP)
グンゼ株式会社 (〒11 京都府綾部市青野町膳所１番地 Kyoto, 6238511, JP)
UBE INDUSTRIES, LTD. (1978-96, O-Aza Kogushi Ube-sh, Yamaguchi 33, 7558633, JP)
宇部興産株式会社 (〒33 山口県宇部市大字小串１９７８番地の９６ Yamaguchi, 7558633, JP)
NISHIURA, Naoki (163 Morikawara-cho, Moriyama-sh, Shiga 64, 5240064, JP)
グンゼ株式会社 (〒11 京都府綾部市青野町膳所１番地 Kyoto, 6238511, JP)
UBE INDUSTRIES, LTD. (1978-96, O-Aza Kogushi Ube-sh, Yamaguchi 33, 7558633, JP)
宇部興産株式会社 (〒33 山口県宇部市大字小串１９７８番地の９６ Yamaguchi, 7558633, JP)
NISHIURA, Naoki (163 Morikawara-cho, Moriyama-sh, Shiga 64, 5240064, JP)
International Classes:
C08L79/08; B29C41/04; C08G73/10; C08K9/02; G03G15/16; B29K79/00; B29L29/00
Attorney, Agent or Firm:
SAEGUSA, Eiji et al. (Kitahama TNK Building, 1-7-1 Doshomachi,Chuo-ku, Osaka-shi, Osaka 45, 5410045, JP)
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