EP 0347127 A1 19891220 - Method for preparing salts of polyolefinic substituted dicarboxylic acids in oleaginous mixtures of reduced viscosity.
Title (en)
Method for preparing salts of polyolefinic substituted dicarboxylic acids in oleaginous mixtures of reduced viscosity.
Title (de)
Verfahren zur Herstellung von Salzen aus polyolefin-substituierten Dicarbonsäuren in Ölgemischen mit schwacher Viskosität.
Title (fr)
Procédé de préparation de sels d'acides dicarboxyliques substitués par des polyoléfines dans des mélanges oléagineux à faible viscosité.
Publication
Application
Priority
US 20761188 A 19880616
Abstract (en)
The present invention is directed to methods of producing reduced viscosity oleaginous compositions containing Group I-B, II-A and II-B metal, particularly copper and/or zinc, salts of the product of a polyolefin having a number average molecular weight (Mn) of at least 600 which has been substituted with at least one dicarboxylic acid producing moiety per polyolefin molecule, wherein the metal salt product is contacted with lower aliphatic or cycloaliphatic amines having from 1 to 4 nitrogen atoms per molecule. The compositions of the present invention can also provide increased stability to viscosity growth, e.g. during storage of the materials prepared by the process of this invention. The resulting solutions are useful in lubricating oils as additives, e.g., as antioxidant lube oil additives.
IPC 1-7
C10M 133/52; C10M 159/18; C10N 10/02; C10N 10/04; C10N 20/02; C10N 20/04
IPC 8 full level
C10L 1/22 (2006.01); C10L 1/30 (2006.01); C10M 133/52 (2006.01); C10M 159/12 (2006.01)
CPC (source: EP)
C10L 1/221 (2013.01); C10L 1/301 (2013.01); C10M 129/93 (2013.01); C10M 133/06 (2013.01); C10M 133/52 (2013.01); C10M 159/12 (2013.01); C10M 159/18 (2013.01); C10M 2207/09 (2013.01); C10M 2207/129 (2013.01); C10M 2215/04 (2013.01); C10M 2227/00 (2013.01); C10M 2227/09 (2013.01); C10N 2010/02 (2013.01); C10N 2010/04 (2013.01); C10N 2040/00 (2013.01); C10N 2040/02 (2013.01); C10N 2040/08 (2013.01); C10N 2040/25 (2013.01); C10N 2040/251 (2020.05); C10N 2040/252 (2020.05); C10N 2040/253 (2020.05); C10N 2040/255 (2020.05); C10N 2040/28 (2013.01); C10N 2040/30 (2013.01); C10N 2040/32 (2013.01); C10N 2040/34 (2013.01); C10N 2040/36 (2013.01); C10N 2040/38 (2020.05); C10N 2040/40 (2020.05); C10N 2040/42 (2020.05); C10N 2040/44 (2020.05); C10N 2040/50 (2020.05)
Citation (search report)
- [X] FR 1422401 A 19651224 - LUBRIZOL CORP
- [A] US 3306908 A 19670228 - LE SUER WILLIAM M
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
EP 0347127 A1 19891220; EP 0347127 B1 19921125; CA 1338598 C 19960917; DE 68903602 D1 19930107; DE 68903602 T2 19930429
DOCDB simple family (application)
EP 89305873 A 19890609; CA 601342 A 19890531; DE 68903602 T 19890609