초록 ▼

The invention relates to a composition which can be foamed from pressurized containers. Said composition is based on an aqueous plastic dispersion containing an aqueous dispersion of at least one film-forming plastic material consisting of 30% to 80% by weight of a film-forming plastic material, a p

The invention relates to a composition which can be foamed from pressurized containers. Said composition is based on an aqueous plastic dispersion containing an aqueous dispersion of at least one film-forming plastic material consisting of 30% to 80% by weight of a film-forming plastic material, a propellant gas amounting between 3% to 25% by weight in relation to the entire composition and one or more ionic foam stabilizers amounting between 0.3 and 6% by weight in relation to the entire composition. The foamed compositions can he used as scaling, damping and insulating materials.

대표청구항 ▼

The invention claimed is: 1. A composition on the basis of an aqueous plastic dispersion that can be foamed from pressurized containers and contains an aqueous dispersion of at least one film-forming plastic material consisting of 30% to 80% by weight of a film-forming plastic material, a propellan

The invention claimed is: 1. A composition on the basis of an aqueous plastic dispersion that can be foamed from pressurized containers and contains an aqueous dispersion of at least one film-forming plastic material consisting of 30% to 80% by weight of a film-forming plastic material, a propellant gas amounting to between 3% and 25% by weight in relation to the entire composition and one or more ionic foam stabilizers amounting to between 0.3 and 6% by weight in relation to the entire composition. 2. The composition according to claim 1, characterized in that the aqueous plastic dispersion contains 40 to 60% by weight of film-forming plastic material. 3. The composition according to claim 1, characterized in that the minimum film-forming temperature is below 100째 C. 4. The composition according to claim 3, characterized in that the minimum film-forming temperature is below 50째 C. 5. The composition according to claim 1, characterized in that the aqueous dispersion contains a polyurethane, a polyacrylate, a styrene butadiene copolymer, a vinyl acetate ethylene copolymer, an acrylic-methacrylic acid copolymer or a mixture of same. 6. The composition according to claim 5, characterized in that the aqueous dispersion contains a mixture of a polyurethane and another plastic material. 7. The composition according to claim 5, characterized in that two film-forming plastic materials are provided in the mixture at a mixing ratio of between 30/70 and 70/30 by weight, of which one has a minimum film-forming temperature of 20째 C. or less and the other has a minimum film-forming temperature of more than 20째 C. 8. The composition according to claim 1, characterized by customary additives in the form of flame retarding agents, thickeners, biocides, fungicides, algicides, antifreezing agents, fillers, anti-corrosion agents and/or emulsifiers of a total amount of up to 50% by weight in relation to the entire composition. 9. The composition according to claim 1, characterized in that the foam stabilizer(s) are of anionic, cationic or amphoteric nature. 10. The composition according to claim 9, characterized in that the foam stabilizer(s) are selected from carboxylates, denvates of fatty acids, fatty alkyl ether carboxylates, alpha-sulfo fatty acid methly ester, fatty alkyl sulfates, fatty alkyl ether sulfates, alkyl phosphates, alkyl ether phosphates, alkyl benzene sulfonates, alkane sulfonates, olefine sulfonates, sulfo succinate and/or sulfo succinate of fatty acid alkanolamides. 11. The composition according to claim 9, characterized in that the foam stabilizer(s) are selected from lipophilic, modified, quartemary proteins, benzalkonium salts, trimethyl alkyl ammonium salts and/or fatty alkonium salts. 12. The composition according to claim 9, characterized in that the foam stabilizer(s) are betaines. 13. The composition according to claim 1, characterized in that the foam stabilizers are present in an amount of between 1.0 and 4. 0% by weight in relation to the entire composition. 14. The composition according to claim 1, characterized in that the propellant gas is a mixture of liquefiable propellant gases. 15. The composition according to claim 14, characterized in that the liquefiable propellant gases are propane, butane, isobutane and/or dimethyl ether. 16. The composition according to claim 1, characterized in that said composition contains CO2 and/or N2O as propellant gas. 17. Use of the composition according to claim 1 for the production of sealing and insulating substances having hollow spaces, in particular for thermal insulation purposes, which comprises expelling said composition from a pressurized container and filling up hollow spaces of said sealing or insulating substance therewith. 18. Use according to claim 17 for the production of insulating strips.