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    • 127. 发明申请
    • PROCESS FOR MAKING AN ACRYLIC MONOMER HAVING ONE OR MORE QUATERNARY AMMONIUM GROUPS AND ITS POLYMERS
    • 制造具有一个或多个季铵盐及其聚合物的丙烯酸单体的方法
    • WO2008118315A1
    • 2008-10-02
    • PCT/US2008/003589
    • 2008-03-19
    • RHODIA INC.
    • LIU, Leo, ZhaoqingKIPLINGER, Jon, D.RADTKE, Douglas
    • C07C233/00C07C235/00
    • C07C231/12C08F226/00C07C233/38
    • A method for making a monomer having an ethylenically unsaturated group and two or more quaternary ammonium groups per molecule, comprising: (a) reacting an excess of a monomeric reactant having at least one ethylenically unsaturated group and at least one tertiary amino group per molecule with a halohydroxyalkyl(trialkyl) quaternary ammonium salt, in an aqueous medium, (b) monitoring the pH of the aqueous medium from at least as early as the time when all reactants have been added to aqueous medium until completion of the reaction, and (c) adjusting the pH of the aqueous medium to and maintaining the pH of the aqueous medium at a value greater than or equal to 9, from the time, after all reactants have been added to aqueous medium, that the reaction mixture exhibits an apparent pH minimum until completion of the reaction.
    • 一种每分子制备具有烯属不饱和基团和两个或多个季铵基团的单体的方法,包括:(a)使过量的每分子具有至少一个烯属不饱和基团和至少一个叔氨基的单体反应物与 至少在所有反应物已经加入到水介质中直到完成反应时才监测水性介质的pH值,(c)在水介质中的卤代烷基(三烷基)季铵盐,(b) )从所有反应物加入到水性介质中之后,调节水性介质的pH并使水介质的pH保持在大于或等于9的值,反应混合物表现出表观pH最小值 直到反应完成。