Process for forming polyalkenyl acylating agents
    31.
    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

    Abstract: 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.

    Abstract translation: 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。

    Fuel additives and fuel compositions containing said fuel additive
    34.
    发明授权
    Fuel additives and fuel compositions containing said fuel additive 有权
    含有所述燃料添加剂的燃料添加剂和燃料组合物

    公开(公告)号:US06136052A

    公开(公告)日:2000-10-24

    申请号:US248463

    申请日:1999-02-11

    Applicant: Daniel T. Daly

    Inventor: Daniel T. Daly

    Abstract: The present invention is directed to a fuel additive composition comprising at least two components:(A) a polyether alcohol of the formula ##STR1## wherein in formula (A-1), R is hydrogen or a hydrocarbyl group of 1 to about 30 carbon atoms; R.sup.1 is hydrogen or a hydrocarbyl group of 1 to 5 carbon atoms or mixtures thereof; and x is a number from about 4 to about 40.(B) a hydrocarbylphenol having 1-3 hydrocarbyl groups such that the total weight average molecular weight of the hydrocarbyl groups is about 250 to about 6000.In one embodiment the composition further comprises (C) a nitrogen-containing dispersant.The composition is useful as a fuel additive for reducing intake valve deposits and advantageously, does not contribute to an increase in combustion chamber deposits in port fuel injected internal combustion engines. The invention also relates to concentrates and fuel compositions containing the foregoing fuel additive composition and to a method for fueling an internal combustion engine.

    Abstract translation: 本发明涉及包含至少两种组分的燃料添加剂组合物:(A)下式的聚醚醇,其中在式(A-1)中,R是氢或1至约30个碳原子的烃基; R 1是氢或1至5个碳原子的烃基或其混合物; (B)具有1-3个烃基的烃基苯酚,使得烃基的总重均分子量为约250至约6000.在一个实施方案中,组合物还包含( C)含氮分散剂。 该组合物可用作减少进气阀沉积物的燃料添加剂,并且有利地不会有助于燃料喷射的内燃机的燃料室沉积物的增加。 本发明还涉及含有上述燃料添加剂组合物的浓缩物和燃料组合物以及一种用于燃烧内燃机的方法。

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