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Title:
ADDITIVES FOR LUBRICATING OILS AND FUEL OILS, LUBRICATING OIL COMPOSITIONS, AND FUEL OIL COMPOSITIONS
Document Type and Number:
WIPO Patent Application WO/2004/069966
Kind Code:
A1
Abstract:
Additives for lubricating oils and fuel oils, which contain as the main component disulfide compounds represented by the general formula (I) or (IV): R1OOC-A1-Sx-A2-COOR2 (I) (wherein R1 and R2 are each independently C1-30 hydrocarbyl which may contain oxygen, sulfur or nitrogen; A1 and A2 are each independently CR3R4 wherein R3 and R4 are each independently hydrogen or C1-20 hydrocarbyl; and x is 2), and R1OOC-A3-Sx-A4-COOR2 (IV) (wherein R1 and R2 are as defined above; A3 and A4 are each independently CR5R6-CR7R8 wherein R5 to R8 are each independently hydrogen or C1-20 hydrocarbyl; and x is 2). The additives exhibit excellent functions as extreme -pressure additive or anti-wear additive and little corrode nonferrous metals, thus being useful as sulfur-containing extreme-pressure additives suitable for lubricating oils and fuel oils.

Inventors:
SHIMIZU NOBUAKI (JP)
Application Number:
PCT/JP2004/001093
Publication Date:
August 19, 2004
Filing Date:
February 04, 2004
Export Citation:
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Assignee:
IDEMITSU KOSAN CO (JP)
SHIMIZU NOBUAKI (JP)
International Classes:
C10L1/24; C10L10/04; C10M135/26; (IPC1-7): C10M135/26; C10L1/24; C10M177/00
Domestic Patent References:
WO1988003552A21988-05-19
WO1988003552A21988-05-19
Foreign References:
JP2001288490A2001-10-16
JPS6036456A1985-02-25
EP0822246A21998-02-04
EP0391649A21990-10-10
JPS6036456A1985-02-25
Other References:
See also references of EP 1602709A4
Attorney, Agent or Firm:
Ohtani, Tamotsu (Bridgestone Toranomon Bldg. 6F. 25-2, Toranomon 3-chom, Minato-ku Tokyo 01, JP)
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