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US 4,365,033 AGranted
Flame-retardant polymer compositions containing metal or amine salts
AssigneeBorg-Warner Corporation
InventorsYuval Halpern, Donna M. Mott
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Abstract
Polymer compositions containing minor proportions of polyvalent metal or amine salts of 5,5-bis-(bromomethyl)-2-hydroxy-2-oxo-1,3,2-dioxaphosphorinane. Aluminum, calcium and melamine salts are preferred.
Claims8
A composition comprising a normally flammable polymer and a minor porportion, sufficient to impart flame-retardant properties to said composition, of a salt of 5,5-bis (bromomethyl)-2-hydroxy-2-oxo-1,3,2-dioxaphosphorinane having the structure ##STR2## where A is a polyvalent metal or protonated amino-s-triazine group and n is an integer corresponding to the valence of A.
Dependencies are inferred from the claim text.