Method of preventing scorch in a polyurethane foam and product thereof
AssigneeStauffer Chemical Company
InventorBarry A. Jacobs
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Abstract
Incorporation of from about 0.01% to about 5% of an N-alkanoyl-N,N'-dialkyl-phenylenediamine compound (e.g. N-heptanoyl-N,N'-di-sec-butyl-para-phenylenediamine) in a flame retarded polyurethane foam formulation stabilizes the formulation against scorching as the foam is formed therefrom and also improves the indentation load deflection of the foam.
Claims12
A method for stabilizing a flame retarded polyurethane foam composition against scorching which comprises incorporating in said foam composition an effective amount of an N-alkanoyl-N,N'-dialkylphenylenediamine compound for scorch inhibition.
A flame retarded polyurethane foam composition stabilized against scorching which contains an amount of an N-alkanoyl-N,N'-dialkylphenylenediamine compound effective for scorch inhibition.
Dependencies are inferred from the claim text.