Flame retardant compositions containing polyphosphazenes

Details Flame retardant compositions containing polyphosphazenes Flame retardant compositions containing polyphosphazenes

1976-05-20

1977-08-16

Hoke, V. P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

106 15FP, C08K 549

Patent

active

040425614

ABSTRACT:
Normally flammable synthetic polymers selected from the group consisting of polyester resins, polyamide resins, cellulosic resins, polyolefins and their substituted derivatives, vinyl aryl compounds, polycarbonate resins, polyurethane resins and mixtures of the foregoing are rendered flame retardant by incorporating therein a flame retardant amount of polyphosphazene having the general formula: ##STR1## WHERE N IS AT LEAST 10, R and R' may be the same or different and represent aryl groups, y and y' may be the same or different and represent halogen and halogen substituted and unsubstituted lower alkyl (e.g., 1 to 10 carbon atoms), aryl, alkoxy, and aryloxy groups, and m = 0 to 10.

REFERENCES:
patent: 3193397 (1965-07-01), Stephens et al.
patent: 3364189 (1968-01-01), Allcock et al.
patent: 3505087 (1970-04-01), Godfrey
patent: 3711524 (1973-01-01), Leebrick
patent: 3792117 (1974-02-01), Kolodchin et al.
patent: 3859249 (1975-01-01), MeNeely
patent: 3867186 (1975-02-01), Hook et al.
patent: 3869294 (1975-03-01), Lanier et al.
Journal of Polymer Science - vol. 13, 2531 - 2543 (1975) - Allcock et al.
Journal of Inorganic Chemistry - vol. 5; 1716 (1966) - White et al.
Polymer Engineering and Science - May 1975 vol. 15, No. 5 pp. 321 to 338 - article by Singler et al.

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