| (19) |
 |
|
(11) |
EP 0 116 460 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
22.05.1985 Bulletin 1985/21 |
| (43) |
Date of publication A2: |
|
22.08.1984 Bulletin 1984/34 |
| (22) |
Date of filing: 08.02.1984 |
|
|
| (84) |
Designated Contracting States: |
|
DE FR GB |
| (30) |
Priority: |
08.02.1983 US 464950
|
| (71) |
Applicant: EXXON RESEARCH AND ENGINEERING COMPANY |
|
() |
|
| (72) |
Inventors: |
|
- Gutierrez, Antonio
()
- O'Halloran, Rosemary
()
- Brois, Stanley James
()
|
|
| |
|
| (54) |
Friction modifier additive for power transmission shift fluids |
(57) There are disclosed power shift transmission fluids such as automatic transmission
fluids containing a friction modifier additive being an oil soluble alkylthio succinic
anhydride or acid, such as octadecyl thiosuccinic acid or anhydride.