Compounds for obtaining polymeric flameproofing agents and the p

Details Compounds for obtaining polymeric flameproofing agents and the p Compounds for obtaining polymeric flameproofing agents and the p

1978-03-08

1979-12-11

Hoke, V. P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

560 65, C08K 553, C07C 6984

Patent

active

041782836

ABSTRACT:
New compounds are disclosed for obtaining novel polymeric flameproofing agents. The former are diphenols of the general formula: ##STR1## where n=0 or 2. The latter are aromatic polyphenylphosphonates having recurring units of the general formula: ##STR2## in which n equals 0 or 2, and are obtained by reacting (I) with phenylphosphonyl chloride. The latter are especially useful for the flameproofing of polyester and finished or shaped articles based on polyester.

REFERENCES:
patent: 3925303 (1975-12-01), Rio et al.
patent: 3932351 (1976-01-01), King
patent: 4044074 (1977-08-01), Walsh et al.

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