초록 ▼

The invention concerns fire-extinguishing and/or fire-retarding compositions comprising at least one water-absorbing polymer and at least one alkali metal salt of a nonpolymeric saturated carboxylic acid, processes for their production and the use of the compositions for firefighting or as fire-reta

The invention concerns fire-extinguishing and/or fire-retarding compositions comprising at least one water-absorbing polymer and at least one alkali metal salt of a nonpolymeric saturated carboxylic acid, processes for their production and the use of the compositions for firefighting or as fire-retarding coatings.

대표청구항 ▼

1. A fire-extinguishing and/or fire-retarding composition comprising at least one water-absorbing polymer having a centrifuge retention capacity of not less than 15 g/g and at least one alkali metal salt of a nonpolymeric saturated carboxylic acid. 2. The composition according to claim 1 further com

1. A fire-extinguishing and/or fire-retarding composition comprising at least one water-absorbing polymer having a centrifuge retention capacity of not less than 15 g/g and at least one alkali metal salt of a nonpolymeric saturated carboxylic acid. 2. The composition according to claim 1 further comprising a thickener. 3. The composition according to claim 1 wherein the water-absorbing polymer is a partially neutralized crosslinked polyacrylic acid. 4. The composition according to claim 1 wherein the alkali metal salt is a sodium or potassium salt. 5. The composition according to claim 1 wherein the alkali metal salt is tripotassium citrate. 6. The composition according to claim 1 further comprising a foaming agent. 7. The composition of claim 1 wherein a ratio of the at least one water-absorbing polymer to the at least one alkali metal salt of the nonpolymeric saturated carboxylic acid is in a range from 1:2 to 1:50. 8. The composition of claim 1 comprising from 0.5% to 2%, by weight, of the at least one water-absorbing polymer and from 5% to 40%, by weight, of the at least one alkali metal salt of the nonpolymeric saturated carboxylic acid. 9. The composition according to claim 1 further comprising water. 10. The composition according to claim 9 further comprising a thickener. 11. The composition according to claim 10 further comprising a foaming agent. 12. The composition according to claim 9 wherein the water-absorbing polymer is a partially neutralized crosslinked polyacrylic acid. 13. The composition according to claim 12 wherein the alkali metal salt comprises tripotassium citrate. 14. The composition according to claim 9 wherein the alkali metal salt comprises tripotassium citrate. 15. A textile material coated with a fire-retarding composition according to claim 1. 16. A building material coated with a fire-retarding composition according to claim 1. 17. An article of manufacture comprising a composition of claim 1. 18. The article of claim 17 selected from the group consisting of an extinguisher, an extinguishing fitting, and an extinguishing system. 19. A fire-extinguishing and/or fire-retarding composition consisting essentially of at least one water-absorbing polymer having a centrifuge retention capacity of not less than 15 g/g and at least one alkali metal salt of a nonpolymeric saturated carboxylic acid. 20. A method of fighting a fire comprising applying a composition of claim 1 to the fire. 21. The method of claim 20 wherein the fire is a forest fire, a tire warehouse fire, a landfill fire, a coal stack fire, or a mine fire. 22. The method of claim 20 wherein the fire is fought from the air. 23. A method of imparting fire resistance to an article comprising: (a) applying a composition of claim 1 and water to the article; and(b) allowing the applied composition to dry on the article and form a fire-retarding coating on the article. 24. The method of claim 23 wherein the article is a textile material, a building material, or a structural component.