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Dive into the research topics where Ulrich Dr. Koehler is active.

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Featured researches published by Ulrich Dr. Koehler.


Archive | 1992

Highly reactive polyoxyalkylene-polyols containing tertiary amino groups in bonded form, their preparation, and their use for the preparation of polyisocyanate polyaddition products

Werner Dr Hinz; Stefan Adams; Ulrich Dr. Koehler; Christian Maletzko; Klaus Dr Vorspohl; Ruth Dr Zschiesche


Archive | 1992

Highly-reactive polyoxyalkylenepolyols with bound tertiary amino groups, method for their production and their use in the production of polyisocyanate-polyaddition products

Werner Dr Hinz; Stefan Adams; Ulrich Dr. Koehler; Christian Maletzko; Klaus Dr Vorspohl; Ruth Dr Zschiesche


Archive | 1991

PREPARATION OF N-SUBSTITUTED PYRROLIDONES

Ulrich Dr. Koehler; Hardo Siegel


Archive | 1991

Preparation of 1,4-alkylenediamines

Ulrich Dr. Koehler; Hardo Siegel; Matthias Irgang


Archive | 1991

Preparation of 2-(3-aminopropyl)-cycloalkylamines

Franz Merger; Claus-Ulrich Priester; Gerhard Dr. Koppenhoefer; Wolfgang Harder; Tom Witzel; Helmut Dr. Lermer; Ulrich Dr. Koehler


Archive | 1992

Polytetrahydrofuran derivatives having terminal aromatic groups

Eckhard Hickmann; Ulrich Dr. Koehler; Hardo Stegel


Archive | 1991

Process for the preparation of 2-pyrrolidones.

Ludwig Dr. Schuster; Ulrich Dr. Koehler


Archive | 1991

Preparation of 2-pyrrolidinones

Ludwig Dr. Schuster; Ulrich Dr. Koehler


Archive | 1991

Process for the preparation of 1,4-alkylenediamines

Ulrich Dr. Koehler; Hardo Siegel; Matthias Irgang


Archive | 1994

Preparation of tertiary amine oxides

Ulrich Dr. Koehler; Hardo Siegel; Guenther Dr Seybold

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