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Cognis France S.a.

Christian De Haut

Herbert Fischer

Wolfgang Gress

Ulrich Eicken

Thomas Moeller

Manfred Gorzinski

Benoit Abribat

Heinz-Guenther Schulte

Horst-Werner Wollenweber

Jean-Francois Leboeuf

Bruno Bret

Hans-Juergen Sladek

Stephanie Merlet

Jean-Pierre Molitor

Thomas Moller

Ulrike Mahler

Horst-W Wollenweber

Peter Claessens

Hans-Jurgen Sladek

Maria Da Silva Marques

Methods suitable for selecting optimal defoamers for use in fermentation processes are described wherein the methods comprise: (a) determining an amount of each of two or more defoamers which provides a requisite dynamic surface tension of at most 50 mN/m at a particular frequency in a fermentation medium; and (b) selecting the defoamer which provides the requisite dynamic surface tension at the lowest amount. Methods for controlling foam by determining and adjusting dynamic surface tension are also described.

Method for evaluating an optimal dosage of defoamers in a fermentation process

The invention concerns in particular a composition for a softening lotion used in fiber treatment. In the invention, the lotion composition is aqueous and liquid at a temperature of at least 5&deg; C. and comprises, as active substances: (a) one or more saturated linear fatty alcohols having at least 16 carbon atoms, and (b) one or more waxy esters having a total of at least 24 carbon atoms. The application of the invention is to the manufacture of fibrous products such as disposable absorbent paper products.

Softening lotion composition, use thereof in paper making, and resulting paper product

Foam control agents for the food, paint and paper industries

Block polymers containing ester groups as defoamers for aqueous systems

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Boissise le Roi, France

Christian De Haut