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Gunter Sextro
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Wiesbaden, DE
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last 30 patents
Information
Patent Grant
Process for preparing trioxane
Patent number
6,124,480
Issue date
Sep 26, 2000
Michael Hoffmockel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for separating formaldehyde and trioxane
Patent number
5,872,263
Issue date
Feb 16, 1999
Hoechst Aktiengesellschaft
Michael Hoffmockel
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of polyacetal copolymers
Patent number
5,587,449
Issue date
Dec 24, 1996
Hoechst Aktiengesellschaft
Dietrich Fleischer
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the preparation of trioxane
Patent number
5,508,448
Issue date
Apr 16, 1996
Hoechst Aktiengesellschaft
Gerhard Emig
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of trioxane
Patent number
5,508,449
Issue date
Apr 16, 1996
Hoechst Aktiengesellschaft
Gerhard Emig
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Continuous process for removing unstable components from crude oxym...
Patent number
5,144,005
Issue date
Sep 1, 1992
Hoechst Aktiengesellschaft
Gunter Sextro
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the continuous manufacture of trioxane
Patent number
4,504,670
Issue date
Mar 12, 1985
Hoechst Aktiengesellschaft
Hartmut Voigt
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the simultaneous preparation of trioxan and cyclic formals
Patent number
4,323,502
Issue date
Apr 6, 1982
Hoechst Aktiengesellschaft
Karl-Friedrich Muck
C07 - ORGANIC CHEMISTRY
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
Thermoplastic molding compositions on the basis of polyoxymethylenes
Patent number
4,181,685
Issue date
Jan 1, 1980
Hoechst Aktiengesellschaft
Rudolf Kern
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-...