| (19) |
 |
|
(11) |
EP 0 327 311 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
01.08.1990 Bulletin 1990/31 |
| (43) |
Date of publication A2: |
|
09.08.1989 Bulletin 1989/32 |
| (22) |
Date of filing: 31.01.1989 |
|
| (51) |
International Patent Classification (IPC)4: C23C 18/12 |
|
| (84) |
Designated Contracting States: |
|
BE DE GB LU NL |
| (30) |
Priority: |
02.02.1988 JP 22370/88
|
| (71) |
Applicant: Hitachi Chemical Co., Ltd. |
|
Shinjuku-ku,
Tokyo 160 (JP) |
|
| (72) |
Inventors: |
|
- Morishima, Hiroyuki
Yamazaki Works of
Hitachi-shi
Ibaragi-ken (JP)
- Uchimura, Shun-ichiro
Yamazaki Works of
Hitachi-shi
Ibaragi-ken (JP)
|
| (74) |
Representative: Jenkins, Peter David et al |
|
PAGE WHITE & FARRER
54 Doughty Street
London WC1N 2LS
London WC1N 2LS (GB) |
|
| |
|
| (54) |
A coating fluid for forming an oxide coating |
(57) A coating fluid for forming an oxide coating, having a good thermal stability and
superior coating-forming properties is provided, which fluid comprises a reaction
product obtained by subjecting (A) an alkoxysilane or aryloxysilane expressed by the
formula RmSi(OR)
4-m wherein R is 1-4C alkyl or aryl and m is 0 to 2 and (B) a metal alkoxide or aryloxide
compound expressed by the formula M(OR′)
n wherein M is Mg, B, P, Zr, Y, Ti or Ba, R′ is 1-4C alkyl or aryl and n is a valence
of the metal atom to hydrolysis and condensation using a catalyst in the presence
of a solvent.