Preparation of flame-resistant halogenated imides

Details Preparation of flame-resistant halogenated imides Preparation of flame-resistant halogenated imides

1988-07-22

1992-08-11

Morgan, Kriellion S.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524 94, 252609, 548451, 548461, 548473, C07D20952

Patent

active

051379481

ABSTRACT:
The invention relates to the preparation of halogenated imides derived from hydrazine and halogenated dicarboxylic acid anhydride and which can be used as flameproofing agents for plastics. The condensation of hydrazine and halogenated dicarboxylic acid anhydride is carried out in an aqueous medium, at a temperature ranging from 40.degree. to 225.degree. C., with a molar ratio of anhydride/hydrazine equal to between 0.5 and 3, preferably between 1 and 2.

REFERENCES:
patent: 2420702 (1947-05-01), Drewitt
patent: 3382254 (1968-05-01), Jenkner et al.
patent: 3705127 (1972-05-01), Cyba
patent: 3734925 (1973-05-01), Minieri
patent: 3798327 (1974-03-01), Minieri
patent: 3873567 (1975-03-01), Cyba
patent: 4087441 (1978-05-01), Lee
patent: 4464240 (1984-08-01), Hansen
patent: 4465571 (1984-08-01), Hansen
S. M. Spatz et al., "Some N-substituted tetrabromophthalimide fire-retardant additives", Industrial and Engineering Chemistry Product Research and Development, vol. 8, No. 4 (1969) pp. 397-398.
Drew et al., "Chemiluminescent Organic Compounds. Part I. Isomeric Simple and Complex Hydrazides of Phthalic Acid and Mode of Formation of Phthalazine and iso Indole Rings" Queen Mary College (University of London) pp. 10-36 (1936).
Jones, "The Reaction of Hydrazine with Polyimides, and Its Utility", Journal of Polymer Science, No. 22, pp. 773-784 (1969).
Chemical Abstracts vol. 83, 180336j, p. 56, 1975.
Chemical Abstracts vol. 89, 164471t, p. 39, 1978.

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