| (84) |
Designated Contracting States: |
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DE FR GB NL SE |
| (30) |
Priority: |
12.12.1980 US 19800215996 12.12.1980 US 19800215997
|
| (71) |
Applicant: THE DOW CHEMICAL COMPANY |
|
Midland Michigan 48640-1967 (US) |
|
| (72) |
Inventors: |
|
- HOFFMAN, Dwight Keith
Midland, MI 48640 (US)
- FRISCH, Kurt Charles, Jr.
Midland, MI 48640 (US)
|
| (74) |
Representative: Weickmann, Heinrich, Dipl.-Ing. |
|
Patentanwälte Dipl.-Ing. H. Weickmann Dipl.-Phys.Dr. K. Fincke Dipl.-Ing. F.A. Weickmann
Dipl.-Chem. B. Huber Dr.-Ing. H. Liska M hlstrasse 22 D-800 D-800 (DE) |
|