(19)
(11) EP 1 160 308 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
04.12.2002 Bulletin 2002/49

(43) Date of publication A2:
05.12.2001 Bulletin 2001/49

(21) Application number: 01304807.9

(22) Date of filing: 31.05.2001
(51) International Patent Classification (IPC)7: C10M 135/18, C10M 169/00
// (C10M169/00, 105:18, 105:38, 115:08, 119:24, 135:18), C10N10:02, C10N10:04, C10N10:08, C10N10:10, C10N10:12, C10N10:16, C10N30:00, C10N40:02, C10N40:08
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 02.06.2000 JP 2000166152

(71) Applicant: Nippon Mitsubishi Oil Corporation
Tokyo (JP)

(72) Inventors:
  • Kinoshita, Hirotugu
    Yokohama-shi, Kanagawa (JP)
  • Sakamato, Kiyomi
    Yokohama-shi, Kanagawa (JP)

(74) Representative: Hallybone, Huw George et al
Carpmaels and Ransford, 43 Bloomsbury Square
London WC1A 2RA
London WC1A 2RA (GB)

   


(54) Grease composition preventing flaking


(57) A grease composition comprising a lubricant base oil and a metal dithiocarbamate represented by the formula (1): wherein R1 to R4 may be the same or different and each stands for a hydrocarbon group having 10 to 20 carbon atoms, and X stands for a metal or a metal-containing group. The composition has long life even when used at a high temperature, is not harmful to humans and the environment, and can give an extended anti-flaking life to the rolling bearing.






Search report