| (19) |
 |
|
(11) |
EP 0 217 597 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
08.06.1988 Bulletin 1988/23 |
| (43) |
Date of publication A2: |
|
08.04.1987 Bulletin 1987/15 |
| (22) |
Date of filing: 18.09.1986 |
|
|
| (84) |
Designated Contracting States: |
|
AT BE CH DE FR GB IT LI LU NL SE |
| (30) |
Priority: |
26.09.1985 DE 3534226
|
| (71) |
Applicant: MOBIL OIL CORPORATION |
|
() |
|
| (72) |
Inventors: |
|
- Huebner, Juergen
()
- Sinning, Gudrun Klara Maria Elisabeth
()
|
|
| |
|
| (54) |
Water-miscible metalworking lubricants |
(57) Water-miscible metalworking lubricants containing formaldehyde-liberating compounds
as biocides contain acidic organic phosphoric acid esters instead of conventional
carboxylic acids in order to maintain prolonged biocide activity and also to reduce
frothing upon dilution to aqueous emulsions or solutions.