Franz Alfes

Person

Krefeld, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Process for the purification of polyarylene sulphides
- Patent number 5,247,063
- Issue date Sep 21, 1993
- Bayer Aktiengesellschaft
- Wolfgang Alewelt
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Preparation of polyarylene sulphides with ketone or pinacone
- Patent number 4,921,935
- Issue date May 1, 1990
- Bayer Aktiengesellschaft
- Ernst-Ulrich Dorf
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for isolating polyarylene sulphides
- Patent number 4,895,930
- Issue date Jan 23, 1990
- Bayer Aktiengesellschaft
- Franz Alfes
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyarylene sulphide capped with monophenol compound
- Patent number 4,771,120
- Issue date Sep 13, 1988
- Bayer Aktiengesellschaft
- Wolfgang Alewelt
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the isolation of polyarylene sulphide from salts contai...
- Patent number 4,734,484
- Issue date Mar 29, 1988
- Bayer Aktiengesellschaft
- Franz Alfes
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for isolating pulverulent chlorinated aliphatic polymers fr...
- Patent number 4,588,809
- Issue date May 13, 1986
- Bayer Aktiengesellschaft
- Karl-Heinrich Meyer
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the production of water-resistant, film-forming chlorin...
- Patent number 4,430,483
- Issue date Feb 7, 1984
- Bayer Aktiengesellschaft
- Franz Alfes
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyarylamide, their production and their use as absorbers for ultr...
- Patent number 4,238,351
- Issue date Dec 9, 1980
- Bayer Aktiengesellschaft
- Franz Alfes
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Chlorination of polyolefins in the presence of complex formers
- Patent number 4,165,431
- Issue date Aug 21, 1979
- Bayer Aktiengesellschaft
- Franz Alfes
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Franz Alfes

Person

Patents Grantslast 30 patents

Process for the purification of polyarylene sulphides

Preparation of polyarylene sulphides with ketone or pinacone

Process for isolating polyarylene sulphides

Polyarylene sulphide capped with monophenol compound

Process for the isolation of polyarylene sulphide from salts contai...

Process for isolating pulverulent chlorinated aliphatic polymers fr...

Process for the production of water-resistant, film-forming chlorin...

Polyarylamide, their production and their use as absorbers for ultr...

Chlorination of polyolefins in the presence of complex formers