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US 5,030,674 AGranted
Flame retardant composition #3
AssigneeShell Oil Company
InventorVincent J. Notorgiacomo, Jr.
Life of this patent
Estimating the term…
Abstract
Flame retardant compositions comprise linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and a minor quantity, relative to the polymer, of a thermally stable cyclic phosphonate ester and polytetrafluoroethylene resin.
Claims9
A flame retardant polymer composition comprising a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and a) a flame retardant amount of a thermally stable cyclic phosphonate ester and b) an amount of polytetrafluoroethylene resin sufficient to render the composition non-dripping.
Dependencies are inferred from the claim text.