Polymeric phosphazenes

Details Polymeric phosphazenes Polymeric phosphazenes

1974-02-14

1976-11-09

Morris, Theodore

Compositions: coating or plastic

Coating or plastic compositions

Contains fireproofing or biocidal agent

106165, 106168, 106177, 260927N, C09D 518, C07F 915

Patent

active

039909000

ABSTRACT:
A novel process consisting of reacting a phosphonitrilic chloride with an alcohol or alkoxide to 12 carbon atoms to produce a partially esterified phosphonitrilic chloride, removing impurities from the chloroester and heating the ester to form a condensed polymeric phosphazene with P-O-P oxygen linkages. This new class of polymer phosphazenes, with P-O-P oxygen linkages, is unusually efficacious in rendering rayon flame-retardant.

REFERENCES:
patent: 2909446 (1959-10-01), Redfarn
patent: 3012908 (1961-12-01), Bilger
patent: 3193571 (1965-07-01), Bilger
patent: 3206494 (1965-09-01), Lund et al.
patent: 3370020 (1968-02-01), Allcock
patent: 3505087 (1970-04-01), Godfrey
patent: 3532526 (1970-10-01), Godfrey
B369,221, Feb. 1976, Kao, 260/927 N.

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