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Title:
LUBRICATING OIL ADDITIVE COMPOSITION FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2003/102117
Kind Code:
A1
Abstract:
A lubricating oil additive composition for internal combustion engines which enables a lubricating oil composition for internal combustion engines having an improved base number to be prepared without impairing the performances of an exhaust gas treatment apparatus including a PM trap and an oxidation catalyst; and a lubricating oil composition for internal combustion engines which contains the lubricating oil additive composition. The lubricating oil additive composition for internal combustion engines contains either a succinimide compound represented by the following general formula (1): (1) (wherein R1 represents C6-30 alkenyl or alkyl; R7, R8, R9, and R10 each independently represents hydrogen or C1-3 alkyl; q is an integer of 2 to 4; n is an integer of 0 to 3; r is an integer of 2 to 4; and A represents amino or N-piperazyl) or a product of boronizing of the compound. The use of this lubricating oil additive composition is also provided.

Inventors:
Koshima, Hiroaki (1280, Kamiizumi Sodegaura-shi, Chiba, 299-0205, JP)
Terada, Izumi (1280, Kamiizumi Sodegaura-shi, Chiba, 299-0205, JP)
Katafuchi, Tadashi (24-4, Anesakikaigan Ichihara-shi, Chiba, 299-0107, JP)
Kamano, Hideki (24-4, Anesakikaigan Ichihara-shi, Chiba, 299-0107, JP)
Application Number:
PCT/JP2003/006837
Publication Date:
December 11, 2003
Filing Date:
May 30, 2003
Export Citation:
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Assignee:
IDEMITSU KOSAN CO., LTD. (1-1 Marunouchi 3-chome, Chiyoda-ku, Tokyo, 100-8321, JP)
Koshima, Hiroaki (1280, Kamiizumi Sodegaura-shi, Chiba, 299-0205, JP)
Terada, Izumi (1280, Kamiizumi Sodegaura-shi, Chiba, 299-0205, JP)
Katafuchi, Tadashi (24-4, Anesakikaigan Ichihara-shi, Chiba, 299-0107, JP)
Kamano, Hideki (24-4, Anesakikaigan Ichihara-shi, Chiba, 299-0107, JP)
International Classes:
C10M133/16; C10M133/56; C10M141/06; C10M141/12; (IPC1-7): C10M133/16; C10M133/56; C10M139/00; C10M141/06; C10M141/12; C10N30/04; C10N30/08; C10N40/25; C10N60/14
Domestic Patent References:
2001-07-05
Foreign References:
US5525247A1996-06-11
EP1086960A12001-03-28
EP0737735A21996-10-16
JP2002105478A2002-04-10
JP2001181341A2001-07-03
JPS52101207A1977-08-25
JP2002194376A2002-07-10
JP2003113391A2003-04-18
Other References:
See also references of EP 1508610A1
Attorney, Agent or Firm:
Ohtani, Tamotsu (Bridgestone Toranomon BLDG. 6F, 25-2 Toranomon 3-chom, Minato-ku Tokyo, 105-0001, JP)
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