Process for the preparation of copolymers
    1.
    发明授权
    Process for the preparation of copolymers 失效
    制备共聚物的方法

    公开(公告)号:US5750642A

    公开(公告)日:1998-05-12

    申请号:US801976

    申请日:1997-02-19

    IPC分类号: C08G67/02 C08K5/49

    CPC分类号: C08G67/02

    摘要: A process for the preparation of copolymers of carbon monoxide with an olefinically unsaturated compound comprising copolymerizing the monomers in the presence of a catalyst composition based upon (a) a salt of a Group VIII metal, and (b) a cation which is selected from cationic oxidants and cations of the general formulae R.sub.n H.sub.4-n N.sup.+, R.sub.m H.sub.3-m C.sup.+ and R.sub.m H.sub.3-m O.sup.+, wherein n is 0, 1, 2, 3 or 4, m is 2 or 3, and R represents a hydrocarbyl group and/or two or three of R together with the atom carrying a positive charge represent a ring structure, on the understanding that when n is 3, at most two of R together with nitrogen represent a heterocyclic ring structure, and when n is 4, three of R together with nitrogen represent an aromatic heterocyclic ring structure.

    摘要翻译: 一种制备一氧化碳与烯属不饱和化合物的共聚物的方法,包括在催化剂组合物的存在下,基于(a)第Ⅷ族金属的盐和(b)选自阳离子 氧化剂和通式为RnH4-nN +,RmH3-mC +和RmH3-mO +的阳离子,其中n为0,1,2,3或4,m为2或3,R为烃基和/或两个或三个 的R原子与带正电荷的原子一起表示环结构,应当理解,当n为3时,R中最多两个与氮一起表示杂环结构,当n为4时,R中的三个与氮一起 表示芳族杂环结构。

    Process for the copolymerization of carbon monoxide with an olefinically
unsaturated compound
    7.
    发明授权
    Process for the copolymerization of carbon monoxide with an olefinically unsaturated compound 失效
    一氧化碳与烯属不饱和化合物共聚的方法

    公开(公告)号:US5741939A

    公开(公告)日:1998-04-21

    申请号:US619868

    申请日:1996-03-21

    摘要: A process for the copolymerization of carbon monoxide with an olefinically unsaturated compound comprising contacting the monomers in the presence of a liquid diluent with a catalyst composition which is based on (a) a source of a Group VIII metal, (b) a bidentate ligand of the general formula R.sup.1 R.sup.2 M.sup.1 --R--M.sup.2 R.sup.3 R.sup.4 wherein M.sup.1 and M.sup.2 independently represent a phosphorus, arsenic or antimony atom, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently represent unsubstituted or substituted hydrocarbyl groups on the understanding that at least one of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 represents a polar substituted aryl group and R represents a bivalent bridging group containing at least two carbon atoms in the bridge, and (c) a boron hydrocarbyl compound, with application of a stirring power transmitted to the polymerization mixture of at least 0.25 kW/m.sup.3.

    摘要翻译: 一种一氧化碳与烯属不饱和化合物共聚的方法,包括在液体稀释剂存在下使单体与催化剂组合物接触,所述催化剂组合物基于(a)Ⅷ族金属源,(b)二元配体 通式R1R2M1-R-M2R3R4其中M1和M2独立地表示磷,砷或锑原子,R1,R2,R3和R4独立地表示未取代或取代的烃基,其理解是R1,R2,R3和 R4表示极性取代的芳基,R表示桥中含有至少两个碳原子的二价桥连基团,和(c)硼烃基化合物,通过施加向聚合混合物中传递至少0.25kW / m3。

    Herbicidal urea compounds
    9.
    发明授权
    Herbicidal urea compounds 失效
    除草脲类化合物

    公开(公告)号:US4533379A

    公开(公告)日:1985-08-06

    申请号:US504349

    申请日:1983-06-14

    摘要: Novel compounds of the general formula ##STR1## wherein R represents a hydrogen or halogen atom or a (cyclo) alkyl group, R.sup.3 represents H, CH.sub.3, or OCH.sub.3, n=0 or 1, and when n=0, R.sup.2 represents a hydrogen atom and R.sup.1 a hydrogen atom or a monovalent substituent thereby forming an alkoxide, ether, ester, or other alcohol derivative, and when n=1, each R.sup.1 and R.sup.2 independently represents one of the atoms specified for R.sup.1 when n=0, or R.sup.1 and R.sup.2 together represent a bivalent group thereby forming a cyclic ether, ester, or other diol derivative, have useful herbicidal properties.

    摘要翻译: 新颖的通式的化合物,其中R表示氢或卤素原子或(环)烷基,R3表示H,CH3或OCH3,n = 0或1,当n = 0时,R2表示氢 原子和R 1为氢原子或一价取代基,由此形成醇盐,醚,酯或其它醇衍生物,当n = 1时,每个R 1和R 2独立地表示当n = 0时为R 1规定的原子之一,或R 1 并且R2一起代表二价基,从而形成环醚,酯或其它二醇衍生物,具有有用的除草性质。