EP 0436872 A3 19910911 - MINERAL OIL BASED TRANSMISSION FLUID
Title (en)
MINERAL OIL BASED TRANSMISSION FLUID
Publication
Application
Priority
DE 4000753 A 19900112
Abstract (en)
[origin: EP0436872A2] Hydraulic fluids, predominantly for hydrokinetic drives, also called automatic transmission fluids (ATF), are based on mineral oil, the base oil being a paraffin-based oil raffinate having viscosities of about 4 mm<2>s<-1> at 100 DEG C, with additives necessary for this application, with the exclusion of polyisobutylene-based dispersants, having been added thereto, and are formulated in such a way that they have Brookfield viscosities from less than 30,000 to less than 20,000 mPas at -40 DEG C. The decrease in viscosity at low temperatures is made possible by replacing the polyisobutylene-based dispersant by a dispersant based on polyalkyl (meth)acrylate.
IPC 1-7
IPC 8 full level
C10M 145/14 (2006.01); C10M 149/02 (2006.01); C10M 169/04 (2006.01); C10N 20/02 (2006.01); C10N 20/04 (2006.01); C10N 30/02 (2006.01); C10N 30/04 (2006.01); C10N 40/08 (2006.01)
CPC (source: EP)
C10M 101/02 (2013.01); C10M 145/14 (2013.01); C10M 149/02 (2013.01); C10M 169/04 (2013.01); C10M 169/041 (2013.01); C10M 2203/10 (2013.01); C10M 2203/1006 (2013.01); C10M 2203/102 (2013.01); C10M 2203/1025 (2013.01); C10M 2203/1045 (2013.01); C10M 2203/1065 (2013.01); C10M 2203/1085 (2013.01); C10M 2209/084 (2013.01); C10M 2217/02 (2013.01); C10M 2217/023 (2013.01); C10M 2217/024 (2013.01); C10M 2217/028 (2013.01); C10M 2217/06 (2013.01); C10N 2040/08 (2013.01)
Citation (search report)
- [XD] DE 3607444 A1 19870910 - ROEHM GMBH [DE]
- [A] GB 2189495 A 19871028 - ROEHM GMBH
- [AD] US 4822508 A 19890418 - PENNEWISS HORST [DE], et al
- [A] DE 1644951 A1 19710513 - SHELL INT RESEARCH
- [A] CHEMICAL ABSTRACTS, Band 79, Nr. 10, November 1973, Seite 76, Zusammenfassung Nr. 116842m, Columbus, Ohio, US; & JP-A-73 039 506 (KANEGAFUCHI CO.) 11-06-1973
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0436872 A2 19910717; EP 0436872 A3 19910911; EP 0436872 B1 19930901; AT E93886 T1 19930915; DE 4000753 A1 19910718; DE 59002561 D1 19931007; JP 2968347 B2 19991025; JP H04270796 A 19920928
DOCDB simple family (application)
EP 90124345 A 19901215; AT 90124345 T 19901215; DE 4000753 A 19900112; DE 59002561 T 19901215; JP 116791 A 19910109