Process for producing fluorinated dicyanobenzene
    2.
    发明授权
    Process for producing fluorinated dicyanobenzene 失效
    制备氟化二氰基苯的方法

    公开(公告)号:US07132561B2

    公开(公告)日:2006-11-07

    申请号:US10398443

    申请日:2001-10-03

    IPC分类号: C07C255/04

    CPC分类号: C07C253/30

    摘要: An object of the invention is to provide a process for industrially producing fluorinated dicyanobenzenes using tetrachlorodicyanobenzene as a raw material. According to the present invention, fluorinated dicyanobenzene can be produced in a high yield by allowing tetrachlorodicyanobenzenes to react with a fluorinating agent in the presence of a non-protonic polar solvent in an amount of 0.1 to 3 times by mass based on the tetrachlorodicyanobenzene. Further, the above production can be conducted more efficiently by reacting while disintegrating or removing bulk solid matters.

    摘要翻译: 本发明的目的是提供使用四氯二氰基苯作为原料工业生产氟化二氰基苯的方法。 根据本发明,通过使四氯二氰基苯在非质子极性溶剂的存在下,相对于四氯二氰基苯为0.1〜3质量%,与氟化剂反应,可以高收率地制备氟化二氰基苯。 此外,通过在分解或除去大量固体物质的同时进行反应,可以更有效地进行上述的生产。

    POLYMERIZABLE MONOMER COMPOSITION AND METHOD FOR PREVENTING POLYMERIZATION
    3.
    发明申请
    POLYMERIZABLE MONOMER COMPOSITION AND METHOD FOR PREVENTING POLYMERIZATION 审中-公开
    可聚合单体组合物和防止聚合的方法

    公开(公告)号:US20100099827A1

    公开(公告)日:2010-04-22

    申请号:US12516991

    申请日:2007-11-29

    IPC分类号: C08L33/00

    摘要: The present invention provides a method for preventing polymerization, and a polymerizable monomer composition favorably used therefor that includes a (meth)acryloyl group-containing isocyanate compound and a specific polymerization inhibitor.The polymerizable monomer composition includes a (meth)acryloyl group-containing isocyanate compound and a stable free radical compound. The invention effectively prevents the polymerization of the (meth)acryloyl group-containing isocyanate compound and the occurrence of polymers due to the polymerization. Furthermore, the use of a stable free radical compound which has a vapor pressure approximate to that of the (meth)acryloyl group-containing isocyanate compound can effectively prevent polymerization in a vapor phase and a condensation phase of distillation facility.

    摘要翻译: 本发明提供了一种防止聚合的方法,以及包含(甲基)丙烯酰基的异氰酸酯化合物和特定聚合抑制剂的有利地使用的可聚合单体组合物。 可聚合单体组合物包括含(甲基)丙烯酰基的异氰酸酯化合物和稳定的自由基化合物。 本发明有效地防止了含(甲基)丙烯酰基的异氰酸酯化合物的聚合和由于聚合引起的聚合物的发生。 此外,使用蒸汽压近似于含(甲基)丙烯酰基的异氰酸酯化合物的稳定的自由基化合物可以有效地防止蒸馏设备的气相和冷凝相的聚合。