Process for the preparation of flame-resistant halogenated imide

Details Process for the preparation of flame-resistant halogenated imide Process for the preparation of flame-resistant halogenated imide

1992-03-19

1999-11-02

Powers, Fiona T.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548451, 548461, 549246, C07D20948, C07D20966, C07D40304

Patent

active

059773790

ABSTRACT:
The invention relates to the preparation of halogenated imides derived from hydrazine, a halogen and a dicarboxylic acid anhydride and capable of being employed as fireproofing agents for plastics.
A dicarboxylic acid anhydride is halogenated with bromine, chlorine or a mixture thereof and then the product thus obtained is subsequently reacted with hydrazine. No prior purification or isolation of the intermediate halogenated anhydride is required.

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