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    • 10. 发明授权
    • Low odor reactive coalescent
    • 低气味反应聚结剂
    • US06509494B1
    • 2003-01-21
    • US09510899
    • 2000-02-23
    • William David Weir
    • William David Weir
    • C07C6952
    • C07D263/04C07B63/04C07C67/03C07C67/62C07D233/32C07C69/54
    • A process is provided for preparing a low odor composition containing a dicyclopentenyl ester including the steps of preparing a distillation mixture containing the dicyclopentenyl ester and from 10 to 10,000 parts per million by weight based on weight of the dicyclopentenyl ester, of a suitable inhibitor; distilling the distillation mixture at a temperature in the range of 140° C. to 250° C.; collecting a first distillation fraction of the dicyclopentenyl ester; and then collecting a second distillation of the dicyclopentenyl ester; wherein the level of dicyclopentenyloxy(meth)acrylate in the second distillation fraction is in the range of 0 to 0.2 weight %, based on the weight of the dicyclopentenyl ester in the second distillation fraction. The second distillation fraction provides a low odor composition of the dicyclopentenyl ester which is useful as a reactive coalescent.
    • 提供了一种制备含有二环戊烯基酯的低气味组合物的方法,包括以下步骤:制备含有二环戊烯基酯的蒸馏混合物和基于二环戊烯基酯重量的10至10,000份(按重量计)合适的抑制剂; 在140℃至250℃的温度下蒸馏该蒸馏混合物。 收集二环戊烯基酯的第一蒸馏馏分; 然后收集二环戊烯基酯的第二次蒸馏; 其中所述第二蒸馏馏分中的二环戊烯基氧基(甲基)丙烯酸酯的含量在第二蒸馏馏分中基于二环戊烯基酯的重量为0至0.2重量%的范围内。 第二蒸馏部分提供二环戊烯基酯的低气味组合物,其可用作活性聚结剂。