Title:
中空炭素微小繊維の縺れをほぐす方法、電気伝導性透明炭素微小繊維凝集フイルム、及びそのようなフイルムを形成するための被覆組成物
Document Type and Number:
Japanese Patent JP3962433
Kind Code:
B2
Abstract:
This invention relates to a method for disentangling hollow carbon microfibers and to the dispersion of hollow carbon microfibers, preferably having an outer diameter of 3.5 to 70 nm and an aspect ratio of at least 5, to form transparent electrically conductive films. Hollow carbon microfibers, treated with strong acids such as sulfuric acid or oleum and an oxidizing agent such as nitric acid, are disentangled and dispersed homogeneously in a polar solvent. The slurry in which the microfibers are suspended can be coated on a substrate. The coating film is dried and a transparent electrically conductive film is formed. A carbon microfiber aggregation film with excellent transparency is obtained having a total transmittance of at least 80 percent and a haze value of at most 0.1%.
Inventors:
Shibuda Daisuke
Application Number:
JP54290297A
Publication Date:
August 22, 2007
Filing Date:
May 28, 1997
Export Citation:
Assignee:
High Pillion Catalysis International, Inc.
Mitsubishi Materials Corporation
Mitsubishi Materials Corporation
International Classes:
D06M11/55; B32B9/00; H01B1/24; C01B31/02; C09D5/24; D01F9/00; D01F9/127; D04H1/42; H01B1/04; H01B5/14; D06M101/40
Domestic Patent References:
| JP8012310A | ||||
| JP4271832A |
Foreign References:
| WO1994025268A1 | ||||
| US4685940 | ||||
| US4073869 |
Attorney, Agent or Firm:
Hideto Asamura
Hajime Asamura
Sadafumi Kobori
Yukihiro Ikeda
Hajime Asamura
Sadafumi Kobori
Yukihiro Ikeda