Hans E. Kunzel

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Dormagen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Semipermeable membranes of heterocyclic copolyamides
- Patent number 4,221,903
- Issue date Sep 9, 1980
- Bayer Aktiengesellschaft
- Klaus Elfert
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Semipermeable membranes of copolyamides
- Patent number 4,217,227
- Issue date Aug 12, 1980
- Bayer Aktiengesellschaft
- Klaus Elfert
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Antistatic polyamide compositions with polyalkyleneglycol ether hav...
- Patent number 4,163,088
- Issue date Jul 31, 1979
- Bayer Aktiengesellschaft
- Hans E. Kunzel
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polyether urethanes as antistatic additives in polyamide compositions
- Patent number 4,111,920
- Issue date Sep 5, 1978
- Bayer Aktiengesellschaft
- Hans Egon Kunzel
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for dyeing wet-spun aromatic polyamides in gel form
- Patent number 4,108,936
- Issue date Aug 22, 1978
- Bayer Aktiengesellschaft
- Gerhard Dieter Wolf
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...