Aromatic polyphenyl phosphonates

Details Aromatic polyphenyl phosphonates Aromatic polyphenyl phosphonates

1977-04-26

1978-09-26

Sutto, Anton H.

Chemistry of carbon compounds

Dipeptides, e.g., aspartame, anserine, carnosine, etc.

260 457P, 260973, 560 67, C07F 940

Patent

active

041170423

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: 2435252 (1948-02-01), Toy
patent: 2964477 (1960-12-01), Pilat, et al.
patent: 4044074 (1977-08-01), Walsh

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