Method for preparing a lactone reaction product
    33.
    发明授权
    Method for preparing a lactone reaction product 失效
    制备内酯反应产物的方法

    公开(公告)号:US4415740A

    公开(公告)日:1983-11-15

    申请号:US387995

    申请日:1982-06-14

    CPC classification number: C07D315/00

    Abstract: A method for preparing a lactone reaction product comprising reacting an alkenyl-succinic acid under substantially anhydrous conditions at elevated temperature ranging up to about 100.degree. in the presence of an .alpha. carbon halogen substituted acetic acid. The .alpha. carbon halogen substituted acetic acid may have from one to three halogen substituents and has a pKa of less than 3.

    Abstract translation: 一种制备内酯反应产物的方法,包括在基本无水条件下,在α-碳卤素取代的乙酸存在下,在高达约100℃的高温下使链烯基 - 琥珀酸反应。 α碳卤素取代的乙酸可以具有一至三个卤素取代基,并且pKa小于3。

    Fuel additive and motor fuel composition
    36.
    发明授权
    Fuel additive and motor fuel composition 失效
    燃料添加剂和汽油燃料组成

    公开(公告)号:US5527364A

    公开(公告)日:1996-06-18

    申请号:US509376

    申请日:1995-07-31

    Abstract: An alkylphenoxypolyoxyalkylene amine lactone composition obtained by reacting:(a) a lactone represented by the formula: ##STR1## where n is a number between about 1 and about 5; and (b) an alkylphenoxypolyoxyalkylene amine represented by the formula: ##STR2## in which R' is a hydrocarbyl radical having from about 4 to 30 carbon atoms, x represents a number from about 5 to 50, and R" represents a C.sub.2 -C.sub.5 hydrocarbyl radical or any combination of C.sub.2 -C.sub.5 hydrocarbyl radicals, such that the oxyalkylene radical can comprise any combination of repeating C.sub.2 -C.sub.5 oxyalkylene units to form block or random copolymers.

    Abstract translation: 烷基苯氧基聚氧亚烷基胺内酯组合物,其通过使(a)由下式表示的内酯:其中n为约1至约5的数; 和(b)由下式表示的烷基苯氧基聚氧亚烷基胺:其中R'是具有约4-30个碳原子的烃基,x表示约5至50的数,R“表示C2- C5烃基或C2-C5烃基的任何组合,使得氧化烯基可以包含重复的C 2 -C 5氧化烯单元以形成嵌段或无规共聚物的任何组合。

    Composition of matter for aliphatic-aromatic ureas, biurets, and
allophanates as nitric oxide reducing agents in diesel emissions
    37.
    发明授权
    Composition of matter for aliphatic-aromatic ureas, biurets, and allophanates as nitric oxide reducing agents in diesel emissions 失效
    脂肪族 - 芳香脲,缩二脲和脲基甲酸酯作为柴油机排放中一氧化氮还原剂的物质组成

    公开(公告)号:US5491256A

    公开(公告)日:1996-02-13

    申请号:US222509

    申请日:1994-04-04

    CPC classification number: C07C275/60

    Abstract: A composition of matter comprising ureas, biurets or allophanates structurally represented, respectively, by ##STR1## where R is hydrogen or a (C.sub.1 -C.sub.50) linear or branched aliphatic, alkenyl, alkynyl or aryl hydrocarbon; ##STR2## where R is hydrogen or a (C.sub.1 -C.sub.50) linear or branched aliphatic, alkenyl, alkynyl or aryl hydrocarbon; or ##STR3## where R is hydrogen or a (C.sub.1 -C.sub.50) linear or branched aliphatic, alkenyl, alkynyl or aryl hydrocarbon.

    Abstract translation: 其中R是氢或(C1-C50)直链或支链的脂族,烯基,炔基或芳基烃,结构上分别表示的脲,缩二脲或脲基甲酸酯的组合物; 其中R是氢或(C1-C50)直链或支链的脂族,烯基,炔基或芳基烃; 或者其中R是氢或(C1-C50)直链或支链脂族,烯基,炔基或芳基烃的

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