Phosphate-containing and phosphonate-containing phosphate esters

Details Phosphate-containing and phosphonate-containing phosphate esters Phosphate-containing and phosphonate-containing phosphate esters

1985-05-23

1987-09-29

Sutto, Anton H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Phosphorus esters

558164, C07F 911, C07F 940

Patent

active

046970304

ABSTRACT:
There are disclosed multiphosphorus-containing compounds comprising phosphonate-containing or phosphate-containing phosphate esters. The compounds can be prepared by: (a) reacting a phosphonate-containing or phosphate-containing alcohol with phosphorus pentoxide following by reaction with an epoxide, (b) reacting a phosphonate-containing or phosphate-containing alcohol with a phosphorus oxyhalide, hydrolyzing any phosphorus halogen bonds and then reacting the resulting phosphoric acid derivative with an epoxide, (c) transesterifying a phosphonate-containing or phosphate-containing alcohol with a dialkyl phosphite, oxidizing the resulting compound to yield a phosphoric acid derivative and reacting the phosphoric acid derivative with an epoxide. The compounds are useful as flame retardant additives for polyurethanes and textiles.

REFERENCES:
patent: 2909559 (1959-10-01), Lanham
patent: 3391226 (1968-07-01), Birum et al.
patent: 3433856 (1969-03-01), Friedman
patent: 3525705 (1970-08-01), Harowitz

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