| (19) |
 |
|
(11) |
EP 1 739 156 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
05.11.2008 Bulletin 2008/45 |
| (43) |
Date of publication A2: |
|
03.01.2007 Bulletin 2007/01 |
| (22) |
Date of filing: 30.06.2006 |
|
| (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 NL PL PT RO SE
SI SK TR |
|
Designated Extension States: |
|
AL BA HR MK RS |
| (30) |
Priority: |
01.07.2005 US 174172
|
| (71) |
Applicant: Afton Chemical Corporation |
|
Richmond, VA 23219 (US) |
|
| (72) |
Inventors: |
|
- Mathur, Naresh C
Midlothian,
Virginia 23114 (US)
- Esche Jr. Carl K
Richmond,
Virginia 23238 (US)
- Passut, Charles A
Midlothian,
Virginia 23113 (US)
|
| (74) |
Representative: Cresswell, Thomas Anthony |
|
J.A. KEMP & CO.
14 South Square
Gray's Inn
London
WC1R 5JJ
Gray's Inn
London
WC1R 5JJ (GB) |
|
| |
|
| (54) |
Additive composition |
(57) A release additive composition including at least one overbased detergent present
in a form chosen from a solid and a semi-solid is disclosed. Also disclosed is a lubrication
system and a method of improving the drain interval of oil.