FIELD: technological processes.
SUBSTANCE: invention relates to a process of producing beta-carboxyethenylphenoxy-phenoxycyclophosphazenes used for curing industrial epoxy resins in order to improve the performance characteristics of the resultant compositions. Proposed method consists in successively replacing in chlorocyclophosphazenes half of the chlorine atoms with the formylphenoxy group by reaction with para or meta-hydroxybasedaldehydes, salicylic aldehyde or a mixture of these aldehydes, further replacing the residual chlorine atoms with the non-reactive phenoxy groups by reaction with phenol and the next reaction of aldehyde groups with malonic acid.
EFFECT: new efficient way of obtaining valuable products is proposed.
1 cl, 6 ex, 2 dwg
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