| abstract |
A self-foaming composition in an acid medium comprising at least: - a hydrophilic polymer, - a compound capable of crosslinking the hydrophilic polymer by the formation of ionic bonds, - a foaming agent, and - a foam stabilizing agent, said composition being under the form of a powder consisting of particles whose particle size ranges from 10 nm to 2 mm and in which at least 20% of the particles have a particle size greater than or equal to 100 nm. |