| (19) |
 |
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(11) |
EP 1 314 771 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
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27.10.2004 Bulletin 2004/44 |
| (43) |
Date of publication A2: |
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28.05.2003 Bulletin 2003/22 |
| (22) |
Date of filing: 05.11.2002 |
|
| (51) |
International Patent Classification (IPC)7: C10L 1/14 |
|
| (84) |
Designated Contracting States: |
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AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
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Designated Extension States: |
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AL LT LV MK RO SI |
| (30) |
Priority: |
21.11.2001 GB 0127915
11.12.2001 EP 01310326
|
| (71) |
Applicant: Infineum International Limited |
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Abingdon, Oxfordshire OX13 6BB (GB) |
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| (72) |
Inventors: |
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- Jackson, Graham
Reading, Berkshire, RG4 7NE1 (GB)
- Tack, Robert Dryden
Abingdon, Oxfordshire, OX14 1XB (GB)
|
| (74) |
Representative: Lewis, Pauline Therese et al |
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Infineum UK Limited, P.O. Box 1, Milton Hill
Abingdon, Oxfordshire OX13 6BB
Abingdon, Oxfordshire OX13 6BB (GB) |
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| |
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(57) A fuel additive comprising a) at least one wax having a refractive index of greater
than 1.4550 at 70°C and a melting point of less than 40°C; and at least one of the
following:
- b) at least one growth arrestor;
- c) at least one polar nitrogen compound;
- d) at least one nucleator;
- e) at least one comb polymer; and
- f) at least one alkyl phenol formaldehyde condensate.
The fuel additive is effective at reducing low temperature operability of fuel oils
having a cloud point of less than or equal to -15°C, preferably less than or equal
to -20°C, and even more preferably less than or equal to -25°C.