Colloid systems and wetting agents; subcombinations thereof; pro – Compositions containing an agent for breaking ; processes of... – Continuous liquid phase colloid system and discontinuous gas...
Reexamination Certificate
2007-07-17
2007-07-17
Gulakowski, Randy (Department: 1712)
Colloid systems and wetting agents; subcombinations thereof; pro
Compositions containing an agent for breaking ; processes of...
Continuous liquid phase colloid system and discontinuous gas...
C516S113000, C516S904000, C073S064510, C137S170100, C435S246000, C435S812000
Reexamination Certificate
active
10494506
ABSTRACT:
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.
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Matthes, Elger et al., Dynamic Surface Tension, Laboratory News, Apr. 2002, pp. 13-15.
Abribat Benoit
Claessens Peter
De Haut Christian
Merlet Stephanie
Molitor Jean-Pierre
Cognis France S.A.
Daniels John F.
Kugel Timothy J.
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