Wilfried Dr Seyfert | Researchain

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Featured researches published by Wilfried Dr Seyfert.

Archive | 1996

Preparation of mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates having a reduced iodine color number and a reduced chlorine content

Dietrich Scherzer; Bernd Bruchmann; Roland Dr Minges; Peter Keller; Willy Van Dr Pee; Wolfgang Heider; Siegmund Pohl; Bernhard Otto; Paul Jacobs; Wilfried Dr Seyfert

Archive | 1996

Process for the preparation of mixtures of diphenylmethane diisocyanates and polyphenylmethylene polyisocyanates with a reduced iodic coloremetric measure and reduced chlorine content

Dietrich Scherzer; Bernd Bruchmann; Roland Dr Minges; Peter Keller; Pee Willy Dr. Van; Wolfgang Heider; Siegmund Pohl; Bernhard Otto; Paul Jacobs; Wilfried Dr Seyfert

Archive | 1989

Purification of carboxylic esters which contain aldehydes, acetals and/or unsaturated compounds

Gerhard Frank; Hubert Lendle; Wilfried Dr Seyfert; Peter Stops

Archive | 1997

Process for the preparation of solutions containing one or more isocyanates which do not contain significant proportions of colour-forming components as well as the use of the prepared isocyanates

Bernd Bruchmann; Rupert Kraus; Filip Nevejans; Wilfried Dr Seyfert; Helmut Dr Tesch; Den Abeel Peter Van

Archive | 1987

Recovery of pyridine or methylpyridines or mixtures thereof from methyl butanedicarboxylate containing reaction mixtures

Hubert Lendle; Paul Panitz; Wilfried Dr Seyfert; Peter Stops

Archive | 1997

Preparation of solutions of one or more isocyanates which contain no appreciate amounts of components which give a color, and also the isocyanates themselves

Rupert Kraus; Filip Nevejans; Den Abeel Peter Van; Helmut Dr Tesch; Wilfried Dr Seyfert; Bernd Bruchmann

Archive | 1987

Method for the continuous production of alkyl esters of pentenoic acid

Paul Panitz; Heinrich Dr Reitz; Gunter Schuch; Wilfried Dr Seyfert

Archive | 1995

Verfahren zur Herstellung von Mischungen aus Diphenylmethan-diisocyanaten und Polyphenyl-polymethylen-polyisocyanaten mit einer verminderten Iodfarbzahl und einem reduzierten Chlorgehalt A process for the preparation of mixtures of diphenylmethane diisocyanates and polyphenyl-polymethylene polyisocyanates having a reduced iodine color number and a reduced chlorine content

Dietrich Scherzer; Bernd Bruchmann; Roland Dr Minges; Peter Keller; Willy Van Dr Pee; Wolfgang Heider; Siegmund Pohl; Bernhard Otto; Paul Jacobs; Wilfried Dr Seyfert

Archive | 1992