| (19) |
 |
|
(11) |
EP 0 379 673 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
19.09.1990 Bulletin 1990/38 |
| (43) |
Date of publication A2: |
|
01.08.1990 Bulletin 1990/31 |
| (22) |
Date of filing: 25.11.1989 |
|
| (51) |
International Patent Classification (IPC)5: B41M 5/24 |
|
| (84) |
Designated Contracting States: |
|
DE FR GB |
| (30) |
Priority: |
23.01.1989 US 300665
|
| (71) |
Applicant: International Business Machines
Corporation |
|
Armonk, N.Y. 10504 (US) |
|
| (72) |
Inventors: |
|
- Afzali-Ardakani, Ali
Yorktown Heights, New York 10598 (US)
- Pennington, Keith S.
Somers
N.Y. 10589 (US)
|
| (74) |
Representative: Schäfer, Wolfgang, Dipl.-Ing. |
|
IBM Deutschland
Informationssysteme GmbH
Patentwesen und Urheberrecht
70548 Stuttgart
70548 Stuttgart (DE) |
|
| |
|
| (54) |
Electroerosion recording medium of improved corrosion resistance |
(57) Electroerosion recording material with improved corrosion resistance provided by
an overlayer of a protective lubricant composition of conductive particles of high
lubricity dispersed in a partially crosslinked, water insoluble, hydrophilic polymeric
binder.