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Title:
LUBRICATING OIL COMPOSITION FOR AUTOMATIC TRANSMISSIONS
Document Type and Number:
WIPO Patent Application WO/1998/017747
Kind Code:
A1
Abstract:
A lubricating oil composition for automatic transmissions, comprising a base oil and a compound of general formula (I), wherein R?1� and R?2� are each hydrocarbyl having 5 or more carbon atoms; R?3� is a C�1?-C�5? hydrocarbon group; R?4� is hydrogen or a C�1?-C�20? hydrocarbyl optionally having an amino group and/or an amide linkage; and n is an integer of 0 to 10.

Inventors:
Kaneko, Hiroyuki (Tonen Corporation, Corporate Research & Development Laboratory 3-1, Nishitsurugaoka 1-chome, Ohi-mach, Iruma-gun Saitama 356, JP)
Kugimiya, Takanori (Tonen Corporation, Corporate Research & Development Laboratory 3-1, Nishitsurugaoka 1-chome, Ohi-mach, Iruma-gun Saitama 356, JP)
Ishida, Hiroshi (Tonen Corporation, Corporate Research & Development Laboratory 3-1, Nishitsurugaoka 1-chome, Ohi-mach, Iruma-gun Saitama 356, JP)
Application Number:
PCT/JP1997/002025
Publication Date:
April 30, 1998
Filing Date:
June 11, 1997
Export Citation:
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Assignee:
TONEN CORPORATION (1-39, Hiroo 1-chome Shibuya-ku, Tokyo 105, JP)
TOYOTA JIDOSHA KABUSHIKI KAISHA (1 Toyota-cho, Toyota-shi, Aichi 471-71, JP)
Kaneko, Hiroyuki (Tonen Corporation, Corporate Research & Development Laboratory 3-1, Nishitsurugaoka 1-chome, Ohi-mach, Iruma-gun Saitama 356, JP)
Kugimiya, Takanori (Tonen Corporation, Corporate Research & Development Laboratory 3-1, Nishitsurugaoka 1-chome, Ohi-mach, Iruma-gun Saitama 356, JP)
Ishida, Hiroshi (Tonen Corporation, Corporate Research & Development Laboratory 3-1, Nishitsurugaoka 1-chome, Ohi-mach, Iruma-gun Saitama 356, JP)
International Classes:
C10M133/16; C10M133/56; C10M141/10; C10M163/00; (IPC1-7): C10M133/16; C10M133/56
Foreign References:
JPH06271883A1994-09-27
JPH03502114A1991-05-16
Attorney, Agent or Firm:
Kubota, Kohei (Kubota Patent & Trademark Firm, Suidobashi TJ Building 4F, 9-5, Misakicho 2-chom, Chiyoda-ku Tokyo 101, JP)
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