Preparation of a diquaternary aminoacrylate, used as flocculant in water treatment, comprises reacting quaternizing agent with diaminoacrylate

摘要

Preparation of a diquaternary amino acrylate comprises reacting a quaternizing agent with a diamino acrylate The preparation of compounds of formula (I) comprises adding a quaternizing agent of formula R3X- (II) to a compound of formula (III) in solution in an organic solvent(s) at 35-80 deg C, reacting, adding water and removing the water. R1 = H or CH3; R2 = CH3, C2H5, C3H7 or C4H9; R3 = CH3, C2H5, C3H7, C4H9 or CH2C6H5; X = Cl or Br. An Independent claim is included for homopolymers or copolymers comprising a monomer(s) of formula (I) prepared as above.