Polymeric phosphine oxide flame retardants

Chemistry of carbon compounds – Miscellaneous organic carbon compounds

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260 2P, 2606065P, 260857R, 260860, C08K 553, C07F 902

Patent

active

040726533

ABSTRACT:
Polymeric phosphine oxides having the formula ##STR1## WHERE R is an alkyl group of from 1 to 20 carbon atoms, or an aryl group of from 6 to 20 carbon atoms, R' is a phenylene or naphthylene group, and n is from 2 to 50 or preferably 5 to 25. The invention also relates to compositions of such polymeric phosphine oxides with organic polymers such as polyesters, e.g. ethylene terephthalate and polyamides, e.g. hexamethylene adipamide. The combination of the present polymeric phosphine oxides with the organic polymers makes it possible to obtain flame retardant products useful in many applications such as for carpeting and clothing.

REFERENCES:
patent: 3044984 (1962-07-01), Bloomfield
patent: 3158642 (1964-11-01), Chapin et al.
patent: 3830771 (1974-08-01), Cohen et al.
patent: 3927231 (1975-12-01), Desitter et al.
patent: 3931099 (1976-01-01), King
patent: 3993623 (1976-11-01), Moedritzer et al.

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