| (19) |
 |
|
(11) |
EP 0 460 973 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
07.09.1994 Bulletin 1994/36 |
| (43) |
Date of publication A2: |
|
11.12.1991 Bulletin 1991/50 |
| (22) |
Date of filing: 07.06.1991 |
|
|
| (84) |
Designated Contracting States: |
|
DE FR GB |
| (30) |
Priority: |
07.06.1990 JP 149556/90
|
| (71) |
Applicant: NIPPON PAINT CO., LTD. |
|
Osaka-shi
Osaka-fu (JP) |
|
| (72) |
Inventors: |
|
- Odawa, Taketoshi
Hirakata-shi,
Osaka (JP)
- Yano, Hirotada
Neyagawa-shi,
Osaka (JP)
- Ueno, Tasaburo
Sakai-shi,
Osaka (JP)
|
| (74) |
Representative: Lamb, John Baxter et al |
|
MARKS & CLERK,
57-60 Lincoln's Inn Fields
London WC2A 3LS
London WC2A 3LS (GB) |
|
| |
|
| (54) |
Durable multilayer coating |
(57) A laminate comprises, in consecutive order, a metal substrate, with or without a
primer layer for powder coating; a powder coating layer and a fluorine resin top coat;
in which the powder coating layer is formed by applying onto the metal substrate (with
or without a primer layer), a composite powder coating composition containing mother
powder particles comprising a film-forming binder resin which is solid at room temperature
and heat-meltable and a pigment, together with microparticles of a resin containing,
as an essential component, methyl methacrylate and having an average diameter of 0.001
to 10 µm, in an amount of 0.05 to 40% by weight of the total powder coating composition;
and then baking the formed coating.