Title:
METALLIC COPPER DISPERSION, PROCESS FOR PRODUCING THE METALLIC COPPER DISPERSION, ELECTRODE, WIRING PATTERN, AND COATING FILM FORMED USING THE METALLIC COPPER DISPERSION, DECORATIVE ARTICLE AND ANTIMICROBIAL ARTICLE WITH THE COATING FILM FORMED THEREON, AND PROCESSES FOR PRODUCING THE DECORATIVE ARTICLE AND THE ANTIMICROBIAL ARTICLE
Document Type and Number:
WIPO Patent Application WO/2010/024385
Kind Code:
A1
Abstract:
Disclosed is a dispersion comprising at least metallic copper particles with gelatin provided on the surface thereof, a polymeric dispersant, and an organic solvent. The dispersion is produced by reducing copper oxide in an aqueous solvent in the presence of gelatin having an amine number and an acid number such that the difference therebetween (amine number – acid number) is 0 or less, then subjecting the reaction solution to solid-liquid separation, and then mixing the resultant metallic copper particles with gelatin provided on the surface thereof and a polymeric dispersant having an amine number and an acid number such that the difference therebetween (amine number – acid number) is 0 to 50, into an organic solvent. The dispersion can maintain dispersion stability of the metallic copper particles for a long period of time, is suitable for inkjet printing and spray coating and can be used in the formation of microelectrodes and circuit wiring patterns, for example, in printed wiring boards, and design and decoration applications utilizing a metallic tone of the coating film.
Inventors:
TOMONARI Masanori (ISHIHARA SANGYO KAISHA LTD., 1, Ishiharacho, Yokkaichi-sh, Mie 42, 〒5100842, JP)
友成 雅則 (〒42 三重県四日市市石原町１番地 石原産業株式会社 四日市工場内 Mie, 〒5100842, JP)
友成 雅則 (〒42 三重県四日市市石原町１番地 石原産業株式会社 四日市工場内 Mie, 〒5100842, JP)
Application Number:
JP2009/065073
Publication Date:
March 04, 2010
Filing Date:
August 28, 2009
Export Citation:
Assignee:
ISHIHARA SANGYO KAISHA, LTD. (3-15, Edobori 1-chome Nishi-ku, Osaka-sh, Osaka 02, 〒5500002, JP)
石原産業株式会社 (〒02 大阪府大阪市西区江戸堀１丁目３番１５号 Osaka, 〒5500002, JP)
TOMONARI Masanori (ISHIHARA SANGYO KAISHA LTD., 1, Ishiharacho, Yokkaichi-sh, Mie 42, 〒5100842, JP)
石原産業株式会社 (〒02 大阪府大阪市西区江戸堀１丁目３番１５号 Osaka, 〒5500002, JP)
TOMONARI Masanori (ISHIHARA SANGYO KAISHA LTD., 1, Ishiharacho, Yokkaichi-sh, Mie 42, 〒5100842, JP)
International Classes:
B22F9/00; B01J13/00; B22F1/02; B22F9/20; C09D17/00; H01B1/22; H01B13/00; H01M4/02
Attorney, Agent or Firm:
ASAMURA Kiyoshi (Room 331, New Ohtemachi Bldg. 2-1, Ohtemachi 2-chome, Chiyoda-k, Tokyo 04, 〒1000004, JP)
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