Abstract: A solid composition comprising oil core aphrons dispersed in a solid surfactant.

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.

Abstract: An aerosol composition, which is prepared from a biliquid foam, an aqueous phase and a propellant. The incorporation of an oil soluble functional material into the biliquid foam during the preparation of the aerosol composition enables this material to be more readily incorporated into the composition.

Abstract: A fuel composition which comprises a biliquid foam consisting of from 10% to 97.5% by weight of non-coalescing droplets of a non-polar liquid comprising a petroleum derivative, paraffin or a liquid halogenated hydrocarbon and from 2 to 87% by weight of a continuous phase polar liquid comprising a C1-C3 alcohol, a C4 alcohol containing at least two hydroxy groups, or ethylene glycol, or mixtures thereof, in an amount of from 60% to 100% by weight thereof, wherein the biliquid foam is stabilized with an amount of from 0.5 to 3.0% by weight based on the total formulation of a surfactant which is selected from castor oil/poly(alkylene glycol) adducts containing from 20 to 50 alkoxy groups, or hydrogenated castor oil/poly(alkylene glycol) adducts containing from 20 to 60 alkoxy groups, or mixtures thereof.

Abstract: A method for coating the surface of a substrate and a surface coating made according to the method Involves contacting the surface with a dispersion of a film forming polymer containing droplets of a suspended biliquid foam or emulsion. Then the dispersion is allowed to dry so as to coat the surface with a coating comprising the droplets trapped within a film of the polymer.