EP 1462510 A1 20040929 - Gear lubricating composition
Title (en)
Gear lubricating composition
Title (de)
Getriebeschmiermittelzusammensetzung
Title (fr)
Composition lubrifiante pour engrenages
Publication
Application
Priority
US 39679303 A 20030325
Abstract (en)
The present invention provides a hypoid axle bimodal gear lubricant formulation comprising: (a) a base oil of lubricating viscosity, (b) at least one viscosity index improver, (c) a friction modifier, and (d) an antiwear additive; wherein said bimodal gear lubricant formulation produces a gel permeation chromatogram having at least a first peak representative of the base oil and at least a second peak representative of the viscosity index improver, and wherein said base oil has a viscosity at 100 DEG C in the range of from about 2 centistokes to about 8 centistokes, and wherein said undilute viscosity index improver has a viscosity at 100 DEG C in the range of from about 600 centistokes to about 45,000 centistokes. <IMAGE>
IPC 1-7
IPC 8 full level
C10M 129/30 (2006.01); C10M 129/38 (2006.01); C10M 133/06 (2006.01); C10M 133/16 (2006.01); C10M 133/22 (2006.01); C10M 135/16 (2006.01); C10M 137/10 (2006.01); C10M 159/12 (2006.01); C10M 161/00 (2006.01); C10M 169/04 (2006.01); C10M 171/02 (2006.01); C10N 20/00 (2006.01); C10N 20/02 (2006.01); C10N 30/06 (2006.01); C10N 40/04 (2006.01)
CPC (source: EP KR US)
C10M 161/00 (2013.01 - EP US); C10M 169/04 (2013.01 - KR); C10M 169/044 (2013.01 - EP US); C10M 169/048 (2013.01 - EP US); C10M 171/02 (2013.01 - EP US); C10M 2203/1025 (2013.01 - EP US); C10M 2205/02 (2013.01 - EP US); C10M 2205/026 (2013.01 - EP US); C10M 2207/10 (2013.01 - EP US); C10M 2209/084 (2013.01 - EP US); C10M 2215/02 (2013.01 - EP US); C10M 2215/08 (2013.01 - EP US); C10M 2215/102 (2013.01 - EP US); C10M 2215/14 (2013.01 - EP US); C10M 2215/24 (2013.01 - EP US); C10M 2215/26 (2013.01 - EP US); C10M 2215/28 (2013.01 - EP US); C10M 2219/064 (2013.01 - EP US); C10M 2223/047 (2013.01 - EP US); C10N 2020/01 (2020.05 - EP US); C10N 2020/02 (2013.01 - EP US); C10N 2030/02 (2013.01 - EP US); C10N 2030/06 (2013.01 - EP US); C10N 2030/54 (2020.05 - EP US); C10N 2040/04 (2013.01 - EP US)
Citation (search report)
- [PX] WO 03064571 A1 20030807 - EXXONMOBIL RES & ENG CO [US]
- [X] EP 0989177 A1 20000329 - NIPPON MITSUBISHI OIL CORP [JP], et al
- [X] US 5641732 A 19970624 - BLOCH RICARDO ALTREDO [US], et al
- [X] EP 0280260 A2 19880831 - IDEMITSU KOSAN CO [JP]
- [X] EP 0291006 A2 19881117 - IDEMITSU KOSAN CO [JP]
- [X] WO 9804658 A1 19980205 - HENKEL CORP [US]
- [X] US 5858935 A 19990112 - WATTS RAYMOND F [US], et al
- [X] EP 0281060 A2 19880907 - IDEMITSU KOSAN CO [JP]
- [A] EP 0604408 A1 19940629 - LUBRIZOL CORP [US]
Designated contracting state (EPC)
BE DE FR GB
DOCDB simple family (publication)
EP 1462510 A1 20040929; AU 2004200677 A1 20041014; CA 2458431 A1 20040925; CN 1534085 A 20041006; JP 2004292818 A 20041021; KR 20040084862 A 20041006; US 2004192564 A1 20040930
DOCDB simple family (application)
EP 04251461 A 20040313; AU 2004200677 A 20040220; CA 2458431 A 20040218; CN 200410033002 A 20040325; JP 2004089774 A 20040325; KR 20040020519 A 20040325; US 39679303 A 20030325