Halogenated polyol-ester neutralization agent

Details Halogenated polyol-ester neutralization agent Halogenated polyol-ester neutralization agent

1984-11-29

1986-01-14

Ivy, C. Warren

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

Organic compounds

Carboxylic acid esters

560 99, 560120, 528 74, 528 80, C07C 6982, C07C 69753

Patent

active

045646970

ABSTRACT:
Haze-free reactive flame retardant halo polyols are made by reacting (a) a halogen containing cyclic acid anhydride (e.g. tetrabromophthalic anhydride), (b) an aliphatic polyol, e.g. diethylene glycol, and (c) an epoxide, e.g. propylene oxide, and including potassium salt of fatty acids (e.g. potassium acetate) in the reaction mixture in an amount at least sufficient to neutralize residual sulfuric acid that is usually present in the halogen containing cyclic acid anhydride.

REFERENCES:
patent: 3278580 (1966-10-01), Worsley
patent: 3455886 (1969-07-01), Versnel
patent: 3531415 (1970-09-01), Reymore
patent: 3585185 (1971-06-01), Levis
patent: 3715383 (1973-02-01), Praetzel
patent: 3823176 (1974-07-01), Levis
patent: 3869502 (1975-03-01), Papa
patent: 3929866 (1975-12-01), Baldino
patent: 4144395 (1979-03-01), Murphy
Pape et al., "J. Cellular Plastics", Nov. 1968, pp. 438-442.

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