Functionalized chain extended initiators for anionic polymerization
    31.
    发明授权
    Functionalized chain extended initiators for anionic polymerization 失效
    用于阴离子聚合的官能化扩链引发剂

    公开(公告)号:US5708092A

    公开(公告)日:1998-01-13

    申请号:US631524

    申请日:1996-04-12

    摘要: A process for the preparation of hydrocarbon solutions of monofunctional ether initiators of the following general structure: M--Q.sub.n --Z--OA(R.sup.1 R.sup.2 R.sup.3) wherein M is defined as an alkali metal, selected from the group consisting of lithium, sodium and potassium, Q is a saturated or unsaturated hydrocarbyl group derived by incorporation of a compound selected from the group consisting of conjugated diene hydrocarbons and alkenylsubstituted aromatic hydrocarbons; Z is a branched or straight chain hydrocarbon group which contains 3-25 carbon atoms, optionally containing aryl or substituted aryl groups; A is an element selected from carbon and silicon; R.sup.1, R.sup.2, and R.sup.3 are independently selected from hydrogen, alkyl, substituted alkyl groups containing lower alkyl, lower alkylthio, and lower dialkylamino groups, aryl or substituted aryl groups containing lower alkyl, lower alkylthio, and lower dialkylamino groups, and n is an integer from 1 to 5, monofunctional ethers produced by the process, use of the initiators in a polymerization process and polymers produced by the polymerization process.

    摘要翻译: 一种制备以下一般结构的单官能醚引发剂的烃溶液的方法:M-Qn-Z-OA(R1R2R3)其中M定义为碱金属,选自锂,钠和钾,Q 是通过引入选自共轭二烯烃和烯基取代的芳族烃的化合物衍生的饱和或不饱和烃基; Z是含有3-25个碳原子的支链或直链烃基,任选含有芳基或取代的芳基; A是选自碳和硅的元素; R 1,R 2和R 3独立地选自氢,烷基,含有低级烷基,低级烷硫基和低级二烷基氨基的取代烷基,含有低级烷基,低级烷硫基和低级二烷基氨基的芳基或取代芳基,n是 1至5的整数,通过该方法产生的单官能醚,在聚合方法中使用引发剂和通过聚合方法制备的聚合物。

    Organolithium process
    32.
    发明授权
    Organolithium process 失效
    有机锂工艺

    公开(公告)号:US5523447A

    公开(公告)日:1996-06-04

    申请号:US477843

    申请日:1995-06-07

    CPC分类号: C07F1/02

    摘要: A process for preparing easily separable solutions of organolithium compounds comprising the steps of reacting lithium metal, in the form of cast or extruded ingots or pieces cut therefrom, with an organo halide in mole ratios ranging from 3:1 to 20:1 in a solvent selected form a group of liquid hydrocarbons, alkyl ethers, and mixtures thereof under an inert atmosphere for one to ten hours with moderate stirring, cooling the resulting product, and separating the solution of the organolithium compound from the reacted lithium metal and by-product lithium chloride in the reactor.

    摘要翻译: 一种用于制备容易分离的有机锂化合物溶液的方法,包括以下步骤:将以铸造或挤出的锭或其切割的碎片形式的锂金属与摩尔比为3:1至20:1的有机卤化物在溶剂 在惰性气氛下选择形成一组液体烃,烷基醚及其混合物,在适度搅拌下搅拌1至10小时,冷却所得产物,并将有机锂化合物的溶液与反应的锂金属和副产物锂 氯化物在反应器中。

    Herbicidally active substituted diphenyl ether oxime derivatives
    37.
    发明授权
    Herbicidally active substituted diphenyl ether oxime derivatives 失效
    除草活性取代二苯醚肟衍生物

    公开(公告)号:US4900862A

    公开(公告)日:1990-02-13

    申请号:US479602

    申请日:1983-03-28

    IPC分类号: A01N37/38 C07C251/60

    CPC分类号: A01N37/38 C07C251/60

    摘要: This invention relates to certain herbicidally active substituted diphenyl ether oxime derivatives, herbidical compositions of the same and the use thereof for preemergence and postermergence control of noxious plants, i.e., weeds.

    摘要翻译: 本发明涉及某些除草活性的取代的二苯醚肟衍生物,其草药组合物及其用于对有害植物(即杂草)进行芽前和后皮调控的用途。

    Herbicidally active 4-aminoalkylamino-3-isoxazolyl-2-imidazolidinone
derivatives
    38.
    发明授权
    Herbicidally active 4-aminoalkylamino-3-isoxazolyl-2-imidazolidinone derivatives 失效
    除草活性的4-氨基烷基氨基-3-异恶唑基-2-咪唑烷酮衍生物

    公开(公告)号:US4756744A

    公开(公告)日:1988-07-12

    申请号:US748066

    申请日:1985-06-24

    CPC分类号: A01N43/80 C07D413/04

    摘要: The invention relates to certain 3-isoxazolyl-2-imidazolidinone derivatives, namely 3-[5- or 3-substituted-3- or 5-isoxazolyl]-1-substituted-4-substituted amino-2-imidazolidinones and the uses thereof for preemergence or postemergence control of noxious plants, i.e., weeds.

    摘要翻译: 本发明涉及某些3-异恶唑-2-咪唑啉酮衍生物,即3- [5-或3-取代-3-或5-异恶唑基] -1-取代-4-取代的氨基-2-咪唑啉酮及其用途 有害植物的出芽前或芽后控制,即杂草。