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Dive into the research topics where Hans Dipl Ing Dr Zengel is active.

Publication


Featured researches published by Hans Dipl Ing Dr Zengel.


Archive | 1983

Thick polyimide-metal laminates with high peel strength

Werner Dipl Chem Klostermeier; Jeffery D. Lasher; Gerhard Meyer; Hans Dipl Ing Dr Zengel


Archive | 1986

Process for the preparation of N,N'-disubstituted guanidines

Manfred Bergfeld; Ludwig Dipl Chem Dr Eisenhuth; Hans Dipl Ing Dr Zengel


Archive | 1979

Silica fibres for friction linings in clutches or brakes - made by extruding sodium silicate into fibres which are treated with acid to form silica

Arno Wegerhoff; Hans Dipl Ing Dr Zengel; Walter Brodowski; Heinz Beck; Gerhard Steenken; Ernst Seeberger


Archive | 1978

Process for the preparation of nitrosobenzene

Hans Dipl Ing Dr Zengel; Manfred Bergfeld


Archive | 1986

VERFAHREN ZUR HERSTELLUNG VON ETHYLEN-ETHAN-GEMISCHEN

Klaus Wohlfahrt; Manfred Bergfeld; Hans Dipl Ing Dr Zengel


Archive | 1972

Process for the production of terephthalic acid dichloride

Hans Dipl Ing Dr Zengel; Dieter Frank; Manfred Bergfeld


Archive | 1986

PROCESS FOR THE PREPARATION OF AQUEOUS AMMONIUM THIOCYANATE

Gerhard Meyer; Günter Dr. Dipl.-Ing. Sudheimer; Hans Dipl Ing Dr Zengel; Hans Grothaus


Archive | 1985

Verfahren zur herstellung waessriger ammoniumrhodanidloesungen

Gerhard Dipl Chem Dr Meyer; Guenter Dipl Ing Dr Sudheimer; Hans Dipl Ing Dr Zengel; Hans Grothaus


Archive | 1985

Verfahren zur herstellung von ethylen-ethan-gemischen A process for the preparation of ethylene-ethane mixtures

Klaus Wohlfahrt; Manfred Bergfeld; Hans Dipl Ing Dr Zengel


Archive | 1985

Verfahren zur herstellung von n,n'-disubstituierten guanidinen

Manfred Bergfeld; Ludwig Dipl Chem Dr Eisenhuth; Hans Dipl Ing Dr Zengel

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