| (19) |
 |
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(11) |
EP 0 107 308 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
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03.07.1985 Bulletin 1985/27 |
| (43) |
Date of publication A2: |
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02.05.1984 Bulletin 1984/18 |
| (22) |
Date of filing: 08.09.1983 |
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| (84) |
Designated Contracting States: |
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AT BE CH DE FR GB IT LI LU NL SE |
| (30) |
Priority: |
09.09.1982 US 416412
|
| (71) |
Applicant: ENGELHARD CORPORATION |
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() |
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| (72) |
Inventors: |
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- Wilcox, Jeannine
()
- Karustis, George
()
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| |
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| (54) |
Palladium electrolytic bath and method of making and using same |
(57) Palladium electroplating baths comprising palladium in the form of a palladium tetraamine
compound, sulfate and/ or sulfamate anions, at least some ammonium cations, and the
balance of the cations, if any, being alkali metal cations, the bath operating at
a pH of about 5 to 7.