EP 0072349 A2 19830216 - Tetrahydroquinoline as an antioxidant for lubricants.
Title (en)
Tetrahydroquinoline as an antioxidant for lubricants.
Title (de)
Tetrahydrochinoline als Antioxidantien für Schmiermittel.
Title (fr)
Tétrahydroquinoline comme agent anti-oxydant pour lubrifiant.
Publication
Application
Priority
CH 513081 A 19810810
Abstract (en)
[origin: CA1199623A] Tetrahydoquinolines as antioxidants for lubricants Lubricants can be rendered more resistant to oxidation with the aid of compounds of the formula I < IMG > (I) wherein R1 and R2 independently of one another are each hydrogen, hydroxyl, C1-C18-alkoxy, C3-C4-alkenyloxy, benzyloxy, C1-C18-alkyl or benzyl, R2 is hydrogen or C1-C12-alkyl, or together with R2 it forms a butadienediyl group, and R4 independently of one another are each C1-C18- alkyl, phenyl or benzyl, or R3 and R4 together with the carbon atom to which they are bound form a C5-Cl2-spiro-cycloalkyl ring, R5 is hydrogen or C1-C18-alkyl, and R6 is C1-C18-alkyl, or R5 and R6 together with the two carbon atom to which they are bound are a C5-C12 cycloaliphatic group. In a preferred embodiment, these compounds are combined with a cuctomary phenolic antioxidant.
Abstract (de)
Schmiermittel können mit Hilfe von Verbindungen der Formel I <IMAGE> worin die Reste R1, R2, R'2, R3, R4, R5 und R6 die im Anspruch 1 angegebene Bedeutung haben antioxidativ ausgerüstet werden. In einer bevorzugten Ausführungsform werden diese in Kombination mit einem herkömmlichen pnenolischen Antioxidant kombiniert.
IPC 1-7
IPC 8 full level
C10M 133/38 (2006.01); C10M 133/40 (2006.01); C10M 141/00 (2006.01); C10N 30/10 (2006.01); C10N 50/10 (2006.01)
CPC (source: EP US)
C10M 133/40 (2013.01 - EP US); C10M 141/00 (2013.01 - EP US); C10M 2207/024 (2013.01 - EP US); C10M 2207/026 (2013.01 - EP US); C10M 2207/046 (2013.01 - EP US); C10M 2207/283 (2013.01 - EP US); C10M 2207/289 (2013.01 - EP US); C10M 2215/08 (2013.01 - EP US); C10M 2215/082 (2013.01 - EP US); C10M 2215/22 (2013.01 - EP US); C10M 2215/221 (2013.01 - EP US); C10M 2215/222 (2013.01 - EP US); C10M 2215/225 (2013.01 - EP US); C10M 2215/226 (2013.01 - EP US); C10M 2215/28 (2013.01 - EP US); C10M 2215/30 (2013.01 - EP US); C10M 2219/084 (2013.01 - EP US); C10M 2219/087 (2013.01 - EP US); C10M 2219/088 (2013.01 - EP US); C10M 2219/089 (2013.01 - EP US); C10M 2219/10 (2013.01 - EP US); C10M 2219/102 (2013.01 - EP US); C10M 2219/104 (2013.01 - EP US); C10M 2219/106 (2013.01 - EP US); C10N 2050/10 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0072349 A2 19830216; EP 0072349 A3 19840725; EP 0072349 B1 19870513; CA 1199623 A 19860121; DE 3276326 D1 19870619; JP S5837092 A 19830304; US 4692258 A 19870908
DOCDB simple family (application)
EP 82810325 A 19820804; CA 408866 A 19820806; DE 3276326 T 19820804; JP 13908782 A 19820810; US 81054385 A 19851218