| abstract |
COMPOSITION FOR PROVIDING A FOAM BARRIER BETWEEN A SUBSTRATE AND THE ATMOSPHERE AND THE METHOD OF USE A composition for forming an essentially biodegradable foam for application to a substrate to provide a barrier between the substrate and the atmosphere formulated from a mixture in water of a sodium sulfonate, a carboxylic acid, KOH, potassium silicate, a nonionic solid organic water-soluble material and a hydroxylic solvent for the potassium salt of the carboxylic acid, in certain proportional relationships. The composition is capable of being produced, transported, stored and handled in the form of a concentrate. The use of the composition in preparing a foam barrier is also provided, having particular usefulness in sanitary landfills for sealing off odors and preventing insect access. |