Method for extracting polyamide particles

Details Method for extracting polyamide particles Method for extracting polyamide particles

B - Operations, Transporting

01

D

B01D 11/02 (2006.01) C08G 69/04 (2006.01) C08G 69/28 (2006.01) C08G 69/46 (2006.01)

Patent

CA 2322034

The invention relates to a method for extracting polyamide particles or polymer particles which contain polyamides with aqueous extraction agents. According to the invention, aqueous solutions of amino nitriles and optional additional monomers which form polyamides, or oligomers which form polyamides, or mixtures thereof are used as aqueous extraction agents.

L'invention concerne un procédé permettant d'extraire des particules de polyamide ou des particules polymères contenant des polyamides avec des agents d'extraction aqueux. Selon ce procédé, les agents d'extraction aqueux sont des solutions aqueuses d'aminonitriles et éventuellement d'autres monomères formant des polyamides, des oligomères formant des polyamides ou leurs mélanges.

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