Method for the preparation of biliquid foam compositions

Details Method for the preparation of biliquid foam compositions Method for the preparation of biliquid foam compositions

2008-01-08

2008-01-08

Gulakowski, Randy (Department: 1712)

Colloid systems and wetting agents; subcombinations thereof; pro

Continuous liquid or supercritical phase: colloid systems;...

Aqueous continuous liquid phase and discontinuous phase...

C516S009000, C516S010000, C516S053000, C516S072000, C516S925000

Reexamination Certificate

active

07317041

ABSTRACT:
A method for the preparation of a biliquid foam which does not rely upon the initial formation of a gas foam, in which a stirrer having a single or a multiplicity of blades is used, the stirrer being operated in a manner such that at least one part of the stirrer mechanism breaks the interface between the continuous polar phase used to form the biliquid foam and the air, the non-polar phase being added dropwise at least initially whilst stirring the continuous polar phase and the rate of addition of the non-polar phase being controlled so that a biliquid foam composition is formed.

REFERENCES:
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patent: 3967921 (1976-07-01), Haberli et al.
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patent: 2002/0058055 (2002-05-01), Zecchino et al.
patent: 2003/0148722 (2003-08-01), Lombardo et al.
Sebba, F., Biliquid Foams—A Preliminary Report, Journal of Colloid and Interface Science, vol. 40, No. 3, Sep. 1972 pp. 468-474.
Sebba, F., Foams and Biliquid Foams—Aphrons, John Wiley & Sons, 1987, Ch. 8, pp. 103-127.

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