Patent ID: 8975301
Filing Date: 2015-03-10
Classification: A23P,A61L,A62D,B01J,B82Y,C01B,C01F,C01P,C04B

Abstract:
1. A method of preparing wet foams exhibiting long-term stability comprising the steps of a) forming a suspension comprising as continuous medium water and/or one or more hydrophilic solvents and colloidal particles as a dispersed phase and b) introducing gas into the suspension to produce a wet foam wherein said colloidal particles are used to stabilize a gas-liquid interface and wherein the particles are present in amounts of at least about 5% by volume referred to the volume of the suspension, wherein the particles are initially hydrophilic and are in-situ lyophobized through adsorption of amphiphilic molecules on the particle surface, wherein amphiphilic molecules consist of a tail coupled to a headgroup, wherein the tail is an aliphatic C