Alwin Heller

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Erzhausen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of granular oxymethylene polymers havin...
- Patent number 4,195,158
- Issue date Mar 25, 1980
- Hoechst Aktiengesellschaft
- Karlheinz Burg
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for preparing oxymethylene polymers in a granular form
- Patent number 4,151,346
- Issue date Apr 24, 1979
- Hoechst Aktiengesellschaft
- Gunter Sextro
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the manufacture of coarse-granular oxymethylene polymers
- Patent number 4,111,912
- Issue date Sep 5, 1978
- Hoechst Aktiengesellschaft
- Gunter Sextro
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...