Flame retardant polyketone polymer blend
AssigneeShell Oil Company
InventorsMichelle Londa, Randall Power Gingrich
Life of this patent
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Abstract
The Comparative Tracking Index of a flame retardant polyketone blend of polyketone polymer and glass filler is improved by formulating the flame retardant as a mixture of alkaline earth metal hydroxide or carbonate and zinc compound.
Claims5
A polyketone polymer blend comprising a major amount of polyketone polymer, a minor amount of glass, and a minor amount of a flame retardant mixture which contain as essential ingredients between about 20 and 30% wt (based on total weight of the blend) alkaline earth metal hydroxide or carbonate and between about 4 and 10% wt (based on total weight of the blend) zinc oxide or zinc containing derivative.
Dependencies are inferred from the claim text.