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Hermann Piana
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Hanau, DE
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last 30 patents
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Patent Grant
Use of isophoronediamine isomer mixtures in polyaddition resins
Patent number
5,373,068
Issue date
Dec 13, 1994
Degussa Aktiengesellschaft
Hermann Piana
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Patent Grant
Method of doping aqueous solutions with acrolein in biocidally effe...
Patent number
5,183,944
Issue date
Feb 2, 1993
Degussa AG
Peter Werle
C07 - ORGANIC CHEMISTRY