Halogen-free, pentane-blown, flame-retardant rigid polyurethane foam and a process for its production
AssigneeClariant GmbH
InventorsAnne Witte, Wilfried Krieger
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Abstract
The invention relates to a halogen-free, pentane-blown, flame-retardant rigid polyurethane foam, wherein oxalkylated alkylphosphonic acids are present as flame retardants. The invention further relates to a process for producing halogen-free, pentane-blown, flame-retardant rigid polyurethane foams, which comprises using oxalkylated alkylphosphonic acids as flame retardants. Finally, the invention also relates to the use of oxalkylated alkylphosphonic acids of the formula I as halogen-free flame retardants for producing flame-retardant rigid polyurethane foams.
Claims15
A halogen-free, pentane-blown, flame-retardant rigid polyurethane foam, wherein oxalkylated alkylphosphonic acids are present as flame retardant.
A process for producing halogen-free, pentane-blown, flame-retardant rigid polyurethane foams, which comprises using oxalkylated alkylphosphonic acids as flame retardant.
The use of oxalkylated alkylphosphonic acids of the formula I as halogen-free flame retardants for producing flame-retardant rigid polyurethane foams.
Dependencies are inferred from the claim text.