(19)
(11) EP 1 491 615 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
published in accordance with Art. 158(3) EPC

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
01.03.2006 Bulletin 2006/09

(43) Date of publication:
29.12.2004 Bulletin 2004/53

(21) Application number: 03720889.9

(22) Date of filing: 24.03.2003
(51) International Patent Classification (IPC): 
C10M 169/04(1985.01)
(86) International application number:
PCT/JP2003/003511
(87) International publication number:
WO 2003/080774 (02.10.2003 Gazette 2003/40)
(84) Designated Contracting States:
DE GB

(30) Priority: 25.03.2002 JP 2002083906

(71) Applicant: NIHON PARKERIZING CO., LTD.
Chuo-ku, Tokyo 103-0027 (JP)

(72) Inventors:
  • KOMIYAMA, Shinobu, c/o Nihon Parkerizing Co. Ltd.
    Chuo-ku, Tokyo 103-0027 (JP)
  • YOSHIDA, Masayuki, c/o Nihon Parkerizing Co. Ltd.
    Chuo-ku, Tokyo 103-0027 (JP)
  • YAMAGUCHI, Hidehiro, c/o Nihon Parkerizing Co. Ltd
    Chuo-ku, Tokyo 103-0027 (JP)

(74) Representative: Casalonga, Axel et al
Bureau D.A. Casalonga-Josse Paul-Heyse-Strasse 33
80336 Munich
80336 Munich (DE)

   


(54) METAL SOAP-COATED PARTICLE, ARTICLE MADE WITH THE SAME, PROCESS FOR PRODUCTION, LUBRICATING COATING AGENT, AND LUBRICATING COATING FILM


(57) Particles each of which consists of an inorganic polyvalent metal compound as a nucleus and a coating of a metallic soap of the polyvalent metal coating the nucleus (coated particles); products and preparation processes using the particles; a lubricating coating forming agent wherein particles each of which consists of a polyvalent metal salt of phosphoric acid as a nucleus and a coating of a metallic soap of the polyvalent metal coating the surface of the nucleus are suspended in an aqueous solution of a water soluble inorganic salt and/or a water soluble organic acid salt; and a lubricating coating. The coated particles are novel particles which can be used as an ingredient of coating-type lubricating coating; are excellent in seizure resistance; can inhibit wear of tools at the time of plastic working since the friction coefficient of the surface of the particles is low; and are slow to cause pollution of working oils. Lubricating coating obtained by applying the lubricating coating forming agent onto the surface of a metallic material gives excellent cold plastic working properties, namely lubricity and seizure resistance to the metallic material.