(Halo)(hydroxy)-substituted phosphites and phosphorates as flame

Details (Halo)(hydroxy)-substituted phosphites and phosphorates as flame (Halo)(hydroxy)-substituted phosphites and phosphorates as flame

1981-04-02

1982-12-21

Cockeram, H. S.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

260950, 260953, 521107, C08G 1814, C08G 1832, C08G 1838, C07F 902

Patent

active

043650260

ABSTRACT:
Novel (halo)(hydroxy)-substituted phosphorus-containing acid derivatives are disclosed. Preferred compounds are 2-halo-3-hydroxypropyl ester derivatives of phosphorus and phosphoric acid formed by reaction of at least some amount of tertiary butyl glycidyl ether with a halogenated derivative of a phosphorus-containing acid followed by acid dealkylation of the product. The polyol products are useful in the production of polyurethane articles such as foams having increased resistance to the effects of fire.

REFERENCES:
patent: 4008187 (1977-02-01), Turley
patent: 4086194 (1978-04-01), Altscher et al.
patent: 4281097 (1981-07-01), Albright
Belgium 771,184, Derwent Abstract 12814T, Chemische Fabrik Kalk GmbH, Aug. 17, 1980.

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