Bromine-containing cyclic phosphonic acid esters

Details Bromine-containing cyclic phosphonic acid esters Bromine-containing cyclic phosphonic acid esters

1976-01-27

1978-07-04

Marquis, Melvyn I.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260865, 260880R, 260937, 521 85, 521 57, C08K 553

Patent

active

040987590

ABSTRACT:
Bromine-containing phosphonic acid esters of the formula ##STR1## in which R represents a halogen-containing linear or branched aliphatic or cycloaliphatic hydrocarbon radical having from 1 to 8 carbon atoms and R' and R" are hydrogen, halogen or alkyl groups having from 1 to 4 carbon atoms which may be closed to form a ring and/or substituted by halogen, at least one substituent being a bromine atom, are suitable as flame retardants for plastic materials, especially polystyrene and styrene copolymers.

REFERENCES:
patent: 3033887 (1962-05-01), Wadsworth, Jr. et al.
patent: 3046236 (1962-07-01), Jahn
patent: 3456041 (1969-07-01), Burk et al.
patent: 3511857 (1970-05-01), Baranauckas et al.
patent: 3781388 (1973-12-01), Jenkner et al.
patent: 3812219 (1974-05-01), Clovis et al.
patent: 3887655 (1975-06-01), Shim
patent: 3887656 (1975-06-01), Shim
patent: 3890409 (1975-06-01), Mayerhoefer et al.
patent: 3925303 (1975-12-01), Rio et al.
patent: 3966849 (1976-06-01), Noetzel et al.

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