EP 0416914 A1 19910313 - Lubricating oil compositions.
Title (en)
Lubricating oil compositions.
Title (de)
Schmierölzusammensetzungen.
Title (fr)
Compositions d'huile lubrifiante.
Publication
Application
Priority
JP 23142689 A 19890908
Abstract (en)
A lubricating oil composition having excellent oxidation stability and reduced sludge formation which comprises (I) a base oil which is a mineral oil having an aromatic content of up to 30 wt.%, a synthetic oil having no aromatic rings in the structural units or a mixture thereof, and, as essential additives, (II) an N-p-alkylphenyl-alpha-naphthylamine and (III) a p,p min -dialkyldiphenylamine each in a specific minor amount.
IPC 1-7
IPC 8 full level
C10M 133/12 (2006.01); C10M 169/04 (2006.01); C10N 30/10 (2006.01); C10N 40/30 (2006.01)
CPC (source: EP KR)
C10M 133/12 (2013.01 - EP KR); C10M 169/04 (2013.01 - EP); C10M 2203/02 (2013.01 - EP); C10M 2203/022 (2013.01 - EP); C10M 2203/024 (2013.01 - EP); C10M 2203/04 (2013.01 - EP); C10M 2203/10 (2013.01 - EP); C10M 2203/104 (2013.01 - EP); C10M 2203/106 (2013.01 - EP); C10M 2205/026 (2013.01 - EP); C10M 2205/028 (2013.01 - EP); C10M 2207/281 (2013.01 - EP); C10M 2207/282 (2013.01 - EP); C10M 2207/283 (2013.01 - EP); C10M 2207/286 (2013.01 - EP); C10M 2207/289 (2013.01 - EP); C10M 2207/34 (2013.01 - EP); C10M 2209/104 (2013.01 - EP); C10M 2209/105 (2013.01 - EP); C10M 2215/06 (2013.01 - EP); C10M 2215/064 (2013.01 - EP); C10M 2215/065 (2013.01 - EP); C10M 2215/066 (2013.01 - EP); C10M 2215/067 (2013.01 - EP); C10M 2215/068 (2013.01 - EP); C10N 2020/01 (2020.05 - EP); C10N 2040/00 (2013.01 - EP); C10N 2040/02 (2013.01 - EP); C10N 2040/08 (2013.01 - EP); C10N 2040/135 (2020.05 - EP); C10N 2040/20 (2013.01 - EP); C10N 2040/22 (2013.01 - EP); C10N 2040/25 (2013.01 - EP); C10N 2040/251 (2020.05 - EP); C10N 2040/252 (2020.05 - EP); C10N 2040/253 (2020.05 - EP); C10N 2040/255 (2020.05 - EP); C10N 2040/28 (2013.01 - EP); C10N 2040/30 (2013.01 - EP); C10N 2040/32 (2013.01 - EP); C10N 2040/34 (2013.01 - EP); C10N 2040/36 (2013.01 - EP); C10N 2040/38 (2020.05 - EP); C10N 2040/40 (2020.05 - EP); C10N 2040/42 (2020.05 - EP); C10N 2040/44 (2020.05 - EP); C10N 2040/50 (2020.05 - EP)
Citation (search report)
- [YD] EP 0232154 A2 19870812 - NIPPON OIL CO LTD [JP]
- [YD] EP 0097118 A2 19831228 - CIBA GEIGY AG [CH]
- [A] US 4096078 A 19780620 - YAFFE ROBERTA
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0416914 A1 19910313; EP 0416914 B1 19930728; DE 69002426 D1 19930902; DE 69002426 T2 19940324; JP 2587296 B2 19970305; JP H0395297 A 19910419; KR 910021468 A 19911220; KR 930011077 B1 19931120
DOCDB simple family (application)
EP 90309748 A 19900906; DE 69002426 T 19900906; JP 23142689 A 19890908; KR 900014170 A 19900907