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The compounds may be applied as fire-detainees for polymeric materials such as solid peno polyurethanes. They have a relatively high frequency and are resistant at conservation in atmospheric conditions and room temperature. The method is easily applied. It increases the output by using accessible organic solvents, ethanol above all. The compounds have a common formulaZnL2X2,where X is Cl, Br or 1, where <IMAGE>The temperature of melting is between 250 to 290 degrees C. The method holds: a solution of zinc halogenide in organic solvent is added at room temperature and mixing a solution of dimethylphthalimidomethylphosphine oxide in the respective organic solvent.
BG8991489A1989-10-061989-10-06Complex compositions of zinc halogenydes with dimethyl- phtalimidomethyl- phosphyl oxide and method for their preparation
BG49215A1
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