A foam concentrate or fire fighting composition for extinguishing and/or retarding fires is provided that meets UL162, Class B performance criteria for at least one of AFFF agents, AR-AFFF agents and fluoroprotein (FP) agents. The concentrate is used to form the fire fighting composition when mixed
A foam concentrate or fire fighting composition for extinguishing and/or retarding fires is provided that meets UL162, Class B performance criteria for at least one of AFFF agents, AR-AFFF agents and fluoroprotein (FP) agents. The concentrate is used to form the fire fighting composition when mixed with water. The concentrate or fire fighting composition includes a high molecular weight fluoropolymer and water and may have a fluorine content wherein less than about 0.008% fluorine by weight of the fire fighting composition is provided from any fluorochemical surfactant. Further, the composition may meet the UL162, Class B performance criteria without forming a stable seal on cyclohexane.
대표청구항▼
I claim: 1. A fire fighting composition comprising water, a hydrocarbon surfactant and a high molecular weight fluoropolymer having an average molecular weight of at least 3000 g/mol in an amount wherein the composition does not form a stable seal on cyclohexane and meets UL162, Class B performance
I claim: 1. A fire fighting composition comprising water, a hydrocarbon surfactant and a high molecular weight fluoropolymer having an average molecular weight of at least 3000 g/mol in an amount wherein the composition does not form a stable seal on cyclohexane and meets UL162, Class B performance criteria for AFFF agents. 2. The fire fighting composition of claim 1, further comprising a fluorochemical surfactant. 3. The composition of claim 1, wherein the composition contains less than about 0.008% fluorine by weight provided from any fluorochemical surfactant. 4. The composition of claim 1, further comprising a fluorochemical surfactant in an amount of from 0.001 to 0.008% fluorine by weight of the fire fighting composition. 5. The composition of claim 1, wherein: the fire fighting composition meets UL162, Class B performance criteria for at least two of AFFF agents, AR-AFFF agents and FP agents. 6. The composition of claim 1, wherein: the fire fighting composition meets UL162, Class B performance criteria for AFFF agents, AR-AFFF agents and fluoroprotein (FP) agents. 7. The composition of claim 1, wherein the high molecular weight fluoropolymer has an avenge molecular weight of at least 5000 g/mol. 8. The composition of claim 1, wherein the fluoropolymer provides a foam life of at least 30 minutes without fluorochemical surfactants. 9. The composition of claim 1, wherein the fire fighting composition has a spreading coefficient (SC) against cyclohexane of from about-4 or more. 10. The composition of claim 1, wherein: the fluoropolymer provides the composition with from about 0. 0003% or more fluorine by weight of the composition. 11. The composition of claim 1, wherein: the fluoropolymer provides the composition with from about 0. 045% or less fluorine by weight of the composition. 12. The composition of claim 1, wherein: the fluoropolymer provides the composition with from about 0. 0003% to about 0.045% fluorine by weight of the composition. 13. The composition of claim 1, wherein: the high molecular weight fluoropolymer has an average molecular weight of at least 10,000 g/mol. 14. A fire fighting composition comprising water, a hydrocarbon surfactant and a high molecular weight fluoropolymer having an average molecular weight of at least 3000 g/mol in an amount wherein the composition has a spreading coefficient (SC) against cyclohexane of from-4 to less than +3.5 and does not form a stable seal on cyclohexane and meets UL162, Class B performance criteria for AFFF agents. 15. The composition of claim 14, wherein the composition contains less than about 0.008% fluorine by weight provided from any fluorochemical surfactant. 16. The composition of claim 14, further comprising a fluorochemical surfactant in an amount of from 0.001 to 0.008% fluorine by weight of the fire fighting composition. 17. The composition of claim 14, wherein: the fire fighting composition meets UL162, Class B performance criteria for at least two of AFFF agents, AR-AFFF agents and FP agents. 18. The composition of claim 14, wherein: the fire fighting composition meets UL162, Class B performance criteria for AFFF agents, AR-AFFF agents and fluoroprotein (FP) agents. 19. The composition of claim 14, wherein the high molecular weight fluoropolymer has an average molecular weight of at least 5000 g/mol. 20. The composition of claim 14, wherein the fluoropolymer provides a foam life of at least 30 minutes without fluorochemical surfactants. 21. The composition of claim 14, wherein: the fluoropolymer provides the composition with from about 0. 0003% or more fluorine by weight of the composition. 22. The composition of claim 14, wherein: the fluoropolymer provides the composition with from about 0. 045% or less fluorine by weight of the composition. 23. The composition of claim 14, wherein: the fluoropolymer provides the composition with from about 0. 0003% to about 0.045% fluorine by weight of the composition. 24. The composition of claim 14, wherein: the high molecular weight fluoropolymer has an avenge molecular weight of at least 10,000 g/mol. 25. A fire fighting composition comprising water, a hydrocarbon surfactant and a high molecular weight fluoropolymer having an average molecular weight of at least 3000 g/mol in an amount wherein the composition does not form a stable seal on cyclohexane and meets UL162, Class B performance criteria for AFFF agents, and wherein the composition has no fluorine content provided from any fluorochemical surfactant. 26. The composition of claim 25, wherein: the fire fighting composition meets UL162, Class B performance criteria for at least two of AFFF agents, AR-AFFF agents and FP agents. 27. The composition of claim 25, wherein: the fire fighting composition meets UL162, Class B performance criteria for AFFF agents, AR-AFFF agents and fluoroprotein (FP) agents. 28. The composition of claim 25, wherein the high molecular weight fluoropolymer has an average molecular weight of at least 5000 g/mol. 29. The composition of claim 25, wherein the fluoropolymer provides a foam life of at least 30 minutes. 30. The composition of claim 25, wherein: the fluoropolymer provides the composition with from about 0. 0003% or more fluorine by weight of the composition. 31. The composition of claim 25, wherein: the fluoropolymer provides the composition with from about 0. 045% or less fluorine by weight of the composition. 32. The composition of claim 25, wherein: the fluoropolymer provides the composition with from about 0. 0003% to about 0.045% fluorine by weight of the composition. 33. The composition of claim 25, wherein: the high molecular weight fluoropolymer has an avenge molecular weight of at least 10,000 g/mol.
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이 특허에 인용된 특허 (19)
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