| (19) |
 |
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(11) |
EP 1 918 944 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
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08.10.2008 Bulletin 2008/41 |
| (43) |
Date of publication A2: |
|
07.05.2008 Bulletin 2008/19 |
| (22) |
Date of filing: 26.10.2007 |
|
| (51) |
International Patent Classification (IPC):
|
|
| (84) |
Designated Contracting States: |
|
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO
SE SI SK TR |
|
Designated Extension States: |
|
AL BA HR MK RS |
| (30) |
Priority: |
26.10.2006 ES 200602735
|
| (71) |
Applicant: REPSOL YPF S.A. |
|
28046 Madrid (ES) |
|
| (72) |
Inventors: |
|
- García Lopéz Durán, Juan de Dios
28046 Madrid (ES)
- González Caballero, Fernando
28046 Madrid (ES)
- Delgado Mora, Angel Vicente
28046 Madrid (ES)
- Ramón Iglesias, Guillermo
28046 Madrid (ES)
- Lopez Lopez, Modesto Torcuato
28046 Madrid (ES)
- Jiménez Olivares, María Luisa
28046 Madrid (ES)
- Fernández Ruiz-Moron, Luis
28046 Madrid (ES)
- Insa Monesma, Jorge
28046 Madrid (ES)
- Romero Palazón, Eduardo
28046 Madrid (ES)
|
| (74) |
Representative: Pons Arino, Angel |
|
Pons Patentes y Marcas Internacional, S.L.
Glorieta Ruben Dario 4
28010 Madrid
28010 Madrid (ES) |
|
| |
|
| (54) |
Magnetorheological Fluid (MRF) |
(57) Magnetorheological fluid composed of magnetic particles dispersed in a liquid phase
which comprises a base oil, a viscosity modifier, and a stabilizing agent.
Particularly the viscosity modifier is a styrene-fumarate copolymer and the stabilizing
agent is aluminium stearate.