Cognis IP Management Gmbh

Cognis France S.a.

Stephanie Merlet

Benoit Abribat

Ramon Valls

Christian De Haut

Jean-Pierre Molitor

William Lamarca

Florence Andrioletti

Peter Claessens

Maria Da Silva Marques

Lapere Jeremie-

A PIT emulsion, including asphalt or bitumen; one or more non-ionic emulsifiers; optionally one or more cationic co-emulsifiers, and/or one or more solvents is provided. A PIT emulsion, including 10% to 70% b.w. asphalt or bitumen; 5% to 15% b.w. of one or more non-ionic emulsifiers; 0 to 5% b.w. of one or more cationic co-emulsifiers; and 0 to 40% b.w. of one or more solvents, where the quantities shown add up to 100% b.w. with water, and optionally other auxiliaries and additives is also provided. A method for making a finely-divided asphalt or bitumen PIT emulsion, including subjecting an aqueous mixture of asphalt or bitumen, at least one non-ionic emulsifier, and optionally a solvent to vigorous stirring to obtain a homogenous composition; heating the homogenous composition above the phase inversion temperature to obtain a PIT emulsion, and cooling the PIT emulsion is also provided.

PIT emulsions

Grafted polymers which are the reaction products of: 

Grafted polymers and methods of making and using thereof

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

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Corbeil-Essonnes, France

Stephanie Merlet