Flameproofed organic materials

Details Flameproofed organic materials Flameproofed organic materials

1983-03-18

1984-07-03

Kight, III, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524710, 523351, C08K 552, C08K 553

Patent

active

044580452

ABSTRACT:
A group of diphosphonic acid tetra-esters and phosphonic or thiophosphonic acid 0,0,0-triesters containing dioxaphosphorinane rings are useful as flame retardants for polymeric organic materials, particularly polyesters. The compounds, some of which are novel, are prepared by reaction of the corresponding phosphites with peroxy compounds or with sulphur.

REFERENCES:
patent: 2540146 (1951-12-01), Stober
patent: 3049545 (1962-08-01), Birum
patent: 3970635 (1976-07-01), Lawton et al.
patent: 4160795 (1979-07-01), Albright et al.
patent: 4268459 (1981-05-01), Hoffman

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