Process for forming polyalkenyl acylating agents
    1.
    发明授权
    Process for forming polyalkenyl acylating agents 有权
    形成聚链烯基酰化剂的方法

    公开(公告)号:US06933351B2

    公开(公告)日:2005-08-23

    申请号:US10600677

    申请日:2003-06-20

    摘要: A process for producing polyalkenyl acylating agent, wherein, upon completion of the thermal reaction of a polyalkene and an unsaturated mono- or dicarboxylic acid or anhydride compound, the reaction mixture is allowed to cool to below the reaction temperature, an additional amount of unsaturated mono- or dicarboxylic acid or anhydride compound is added to the cooled reaction mixture, which is then maintained in the reactor for a time period, optionally with agitation. Reducing the temperature of the reaction mixture prior to the introduction of additional unsaturated mono- or dicarboxylic acid or anhydride compound minimizes further reaction between the additional unsaturated mono- or dicarboxylic acid or anhydride compound and any remaining unreacted polyalkene, as well as self-polymerization of the unsaturated mono- or dicarboxylic acid or anhydride compound. Polymerized unsaturated mono- or dicarboxylic acid or anhydride compound in the reactor, suspended in the reaction mixture in the form of sediment or deposited on the internal walls of the reactor vessel as tar, is dissolved by the additional unsaturated mono- or dicarboxylic acid or anhydride compound and removed from the reactor upon draining of the reactor vessel.

    摘要翻译: 一种制备聚链烯基酰化剂的方法,其中,当聚烯烃和不饱和单羧酸或二羧酸或酸酐化合物的热反应完成时,将反应混合物冷却至低于反应温度,加入额外量的不饱和单 - 或二羧酸或酸酐化合物加入到冷却的反应混合物中,然后将其保持在反应器中一段时间​​,任选地搅拌。 在引入另外的不饱和单羧酸或二羧酸或酸酐化合物之前,降低反应混合物的温度使得另外的不饱和单羧酸或二羧酸或酸酐化合物与任何剩余的未反应的聚烯烃之间的进一步反应最小化, 不饱和单羧酸或二羧酸或酸酐化合物。 在反应器中以沉淀物的形式悬浮在反应混合物中或沉积在作为焦油的反应器容器的内壁上的聚合的不饱和单羧酸或二羧酸或酸酐化合物被另外的不饱和单羧酸或二羧酸或酸酐溶解 化合物并在反应器容器排水时从反应器中除去。