| (19) |
 |
|
(11) |
EP 0 005 890 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
02.01.1980 Bulletin 1980/01 |
| (43) |
Date of publication A2: |
|
12.12.1979 Bulletin 1979/25 |
| (22) |
Date of filing: 05.06.1979 |
|
|
| (84) |
Designated Contracting States: |
|
AT BE CH DE FR GB IT NL SE |
| (30) |
Priority: |
06.06.1978 NL 7806118
|
| (71) |
Applicant: Akzo N.V. |
|
() |
|
|
| |
|
| (54) |
Process for depositing composite coatings containing inorganic particles from an electroplating
bath |
(57) Solid inorganic particles and metals are codeposited from electroplating baths to
form a coating of a very homogeneous structure, said positively charged resin particles,
which have a particle size of less than 300 µm, being kept dispersed in said baths
in the presence of a cationic fluorocarbon surfactant in at least the same weight
ratio to the particles in the bath liquid as in an 0,005 N KN0
3-solution In which the particles assume a zeta-potential of at least +40 mV with the
exclusive use of said cationic fluorocarbon compound.