| (19) |
 |
|
(11) |
EP 0 158 187 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
23.09.1987 Bulletin 1987/39 |
| (43) |
Date of publication A2: |
|
16.10.1985 Bulletin 1985/42 |
| (22) |
Date of filing: 21.03.1985 |
|
|
| (84) |
Designated Contracting States: |
|
DE FR IT SE |
| (30) |
Priority: |
11.04.1984 JP 7211084
13.07.1984 JP 14536084
26.07.1984 JP 15617784
06.08.1984 JP 16436384
|
| (71) |
Applicant: SHINAGAWA REFRACTORIES CO., LTD. |
|
() |
|
| (72) |
Inventors: |
|
- Ishizawa, Kenki
()
- Kobayashi, Takehiko
()
|
|
| |
|
| (54) |
Composite material having a low thermal expansivity |
(57) A composite material having a low thermal expansivity obtained by combining 10 to
60 wt. % of a powdery Li
2O-Al
2O
3-SiO
2 mineral with 40 to 90 wt. % of one or more members selected from the group consisting
of metals of Fe, Cu, Ni, Co, Mo, Ti. Cr, Al, Mn, Si, Zn, Ben and W and alloys of two
or more of these metals to form the composite material containing the metal(s) having
a reduced coefficient of thermal expansion.