Lubricating oil additives
    15.
    发明授权
    Lubricating oil additives 失效
    润滑油添加剂

    公开(公告)号:US5356550A

    公开(公告)日:1994-10-18

    申请号:US488058

    申请日:1990-06-08

    摘要: A process for producing a dispersant/VI improver for use in finished lubricating oil compositions comprises reacting in a normally liquid substantially inert organic solvent (a) a copolymer of an olefin and a monomer having the structure (I), wherein X and X.sup.1 are the same or different provided that at least one of X and X.sup.1 is such that the copolymer can function as carboxylic acylating agent, (b) a succinimide, and (c) a primary or secondary amine or a mixture thereof. Preferred copolymers comprise maleic anhydride as a comonomer. In a preferred embodiment of the invention, the amine is a monoamine, and a polyamine is also added; the monoamine and polyamine are added to the reaction medium prior to addition of the succinimide.

    摘要翻译: PCT No.PCT / GB89 / 01225 Sec。 371日期:1990年6月8日 102(e)日期1990年6月8日PCT提交1989年10月17日PCT公布。 出版物WO90 / 04628 用于制备用于成品润滑油组合物的分散剂/ VI改进剂的方法包括在通常液体基本惰性的有机溶剂(a)中烯烃和具有结构(I)的单体的共聚物, 其中X和X 1相同或不同,条件是X和X 1中的至少一个使得共聚物可以起羧酸酰化剂的作用,(b)琥珀酰亚胺和(c)伯胺或仲胺或其混合物。 优选的共聚物包括马来酸酐作为共聚单体。 在本发明的优选实施方案中,胺是单胺,并且还加入多胺; 在加入琥珀酰亚胺之前,将单胺和多胺加入到反应介质中。

    Carbamates, their production and use as fuels additives
    17.
    发明授权
    Carbamates, their production and use as fuels additives 失效
    氨基甲酸酯,其生产和用作燃料添加剂

    公开(公告)号:US5286265A

    公开(公告)日:1994-02-15

    申请号:US868485

    申请日:1992-04-14

    摘要: The invention relates to an internal combustion fuel concentrate comprising: (a) from 1 to 95% of a chlorine-free carbamate prepared by reacting a carbamate of formula ##STR1## with a compound of the formula R OH (VI) in the presence of either a strone organic base or a tetra hydrocarbyl titanate so as to exchange the group R in formula (I) with a group R.sup.1 in formula (II), and (b) a fuel compatible solvent therefor. In the formula (I) R is a hydrocarbyl or substituted hydrocarbyl group and R.sup.1 is a hydrocarbyl or a hetero-substituted hydrocarbyl group different from R. In formula (I), X and Y are independently any of hydrogen, a hydrocarbyl group, or the group of the formula ##STR2## where Z is either a divalent hydrocarbyl, a substituted hydrocarbyl group or the group of formula(alkylene).sub.m (NH.sub.n (alkylene).sub.m (III)in which n=0 to 4 and m=1 to 4, and R is hydrocarbyl a substituted hydrocarbyl, provided that if either one of X or Y is the group of formula (II), the other of X or Y is hydrogen.

    摘要翻译: 本发明涉及一种内燃燃料浓缩物,其包含:(a)通过使式(* CHEMICAL STRUCTURE *)(I)的氨基甲酸酯与式R OH的化合物(I)反应制备的1-95%的无氯氨基甲酸酯 VI)在有条件的有机碱或四烃基钛酸酯的存在下,以使式(I)中的基团R与式(II)中的基团R 1交换,和(b)与其相容的燃料相容性溶剂。 在式(I)中,R是烃基或取代的烃基,R 1是与R不同的烃基或杂取代的烃基。在式(I)中,X和Y独立地是氢,烃基或 其中Z是二价烃基,取代的烃基或式(亚烷基)m(NH,(亚烷基)m(III)的基团,其中n = 0〜 4和m = 1至4,并且R是烃基取代的烃基,条件是如果X或Y中的任一个是式(II)的基团,则X或Y中的另一个是氢。