Bromine-containing cyclic phosphonic acid esters

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

1974-08-05

1976-06-29

Sutto, Anton H.

Chemistry of carbon compounds

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

260 457P, C07F 915, C08K 553

Patent

active

039668495

ABSTRACT:
Bromine-containing phosphonic acid esters of the formula ##EQU1## 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: 3511857 (1970-05-01), Baranauckas et al.

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