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Wolfgang Eisermann
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Duesseldorf, DE
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last 30 patents
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Patent Grant
Process for the preparation of polyarylene sulphides
Patent number
5,306,805
Issue date
Apr 26, 1994
Bayer AG
Wolfgang Arlt
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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
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 the isolation of polyarylene sulphide
Patent number
4,639,507
Issue date
Jan 27, 1987
Bayer Aktiengesellschaft
Wolfgang Alewelt
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the production of high molecular weight, optionally bra...
Patent number
4,598,144
Issue date
Jul 1, 1986
Bayer Aktiengesellschaft
Edgar Ostlinning
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-...