Method for producing dialkylphosphinic acids

Details Method for producing dialkylphosphinic acids Method for producing dialkylphosphinic acids

C - Chemistry, Metallurgy

07

F

C07F 9/30 (2006.01) C08K 5/5313 (2006.01)

Patent

CA 2311330

The invention relates to a method for producing dialkylphosphinic acids and/or their alkali salts by reacting olefins with alkylphosphonous and/or hypophosphorous acid and/or their alkali salts, characterised in that the reaction takes place in the presence of a radical starter. The invention also relates to the use of the products obtained according to the inventive method for producing flameproofing agents.

L'invention concerne un procédé pour la préparation d'acides dialkylphosphiniques et/ou de leurs sels alcalins par réaction d'oléfines avec de l'acide alkyle phosphonique et/ou de l'acide hypophosphoreux et/ou leurs sels alcalins, caractérisé en ce que cette réaction s'effectue en présence d'un initiateur radicalaire. L'invention concerne également l'utilisation des produits préparés selon ce procédé pour la fabrication d'agents ignifuges.

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