利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

59 条记录 (耗时 0.015 秒)

    Process for making anhydrous alkyl iodides
    43.
    发明授权
    Process for making anhydrous alkyl iodides 失效
    制备无水烷基碘化物的方法

    公开(公告)号：US4351972A

    公开(公告)日：1982-09-28

    申请号：US296328

    申请日：1981-08-26

    申请人： Hans K. Kubbeler ,  Heinz Erpenbach ,  Klaus Gehrmann ,  Klaus Schmitz

    发明人： Hans K. Kubbeler ,  Heinz Erpenbach ,  Klaus Gehrmann ,  Klaus Schmitz

    IPC分类号： C07C17/00 ,  B01J31/00 ,  C07B61/00 ,  C07C17/093 ,  C07C17/363 ,  C07C19/07 ,  C07C51/00 ,  C07C51/09 ,  C07C67/00 ,  C07C19/02

    CPC分类号： C07C17/093

    摘要： The invention relates to the production of anhydrous alkyl iodides. To this end, carboxylic acid alkyl esters of the formula R.sup.1 COOR.sup.2, in which R.sup.1 stands for hydrogen or an alkyl or aryl radical having from 1 to 8 carbon atoms and R.sup.2 stands for an alkyl group having from 1 to 4 carbon atoms, are reacted with iodine and hydrogen and optionally with carbon monoxide in the presence of compounds of noble metals comprised of rhodium, iridium, palladium or ruthenium as catalyst, and of a heterocyclic aromatic compound, in which at least one hetero atom is a quaternary nitrogen atom, or of a quaternary organophosphorus compound as a promoter, and optionally also in the presence of a carboxylic acid having from 1 to 8 carbon atoms and/or its anhydrides. The reaction is effected under practically anhydrous conditions at temperatures of from 350 to 420 K. and under a total pressure of up to 30 bars.

    摘要翻译： 本发明涉及无水烷基碘化物的生产。 为此，式R1COOR2的羧酸烷基酯（其中R1代表氢或具有1至8个碳原子的烷基或芳基，R2代表具有1至4个碳原子的烷基）与 碘和氢，以及任选地与一氧化碳在由铑，铱，钯或钌作为催化剂组成的贵金属的化合物和杂环芳族化合物存在下，其中至少一个杂原子是季氮原子，或 作为促进剂的季有机磷化合物，以及任选地还可以在具有1至8个碳原子的羧酸和/或其酸酐存在下进行。 反应在几乎无水条件下在350至420K的温度下进行，总压力高达30巴。

    Process for the manufacture of perfluoralkyl iodides
    44.
    发明授权
    Process for the manufacture of perfluoralkyl iodides 失效
    制备全氟烷基碘化物的方法

    公开(公告)号：US4067916A

    公开(公告)日：1978-01-10

    申请号：US575564

    申请日：1975-05-08

    申请人： Horst Jaeger

    发明人： Horst Jaeger

    IPC分类号： C07C17/278 ,  C07C19/07

    CPC分类号： C07C17/278

    摘要： A process is provided for the manufacture of fluoralkyliodides of high molecular weight from the corresponding perfluoralkyliodides of lower molecular weight. In this process a perfluoralkyliodide is telomerized with a perfluorethylene or a perfluorpropylene each optionally containing at most one chlorine atom, and an amine, in the presence of a metal salt of a metal of groups IIIa, IIIb to VIIIb of the 4th to 6th period or of groups Ia or IIa of the Period Table as a catalyst at 0.degree. to 350.degree. C and under a pressure from 0 to 200 atmospheres (gauge).The so-obtained products are useful as intermediates for the manufacture of carboxylic acids or alcohols or for reaction with non-fluoro compounds. The products thus obtained may be used as agents for conferring oleophobic or hydrophobic proerties, as soil release agents or also as hydraulic fluids.

    摘要翻译： 提供了从相应的较低分子量的全氟烷基碘制造高分子量氟代烷基碘的方法。 在该方法中，在第4至第6周期的IIIa，IIIb至VIIIb族金属的金属盐存在下，全氟烷基碘被全氟烷基或全氟丙烯各自任选含有至多一个氯原子和胺， 在0至350℃和0至200大气压（表压）的压力下，作为催化剂的元素周期表中的Ia或IIa族。

    Catalyst for living radical polymerization
    49.
    发明授权
    Catalyst for living radical polymerization 有权
    活性自由基聚合催化剂

    公开(公告)号：US08575285B2

    公开(公告)日：2013-11-05

    申请号：US13062688

    申请日：2009-09-08

    申请人： Atsushi Goto ,  Yoshinobu Tsujii ,  Takeshi Fukuda

    发明人： Atsushi Goto ,  Yoshinobu Tsujii ,  Takeshi Fukuda

    IPC分类号： C08F4/00 ,  C08F12/02 ,  C07C19/16 ,  C07C255/50 ,  C07C19/07 ,  C07C25/02 ,  C07C43/247 ,  B01J31/00 ,  B01J27/06 ,  B01J27/135

    CPC分类号： C08F4/00 ,  C08F293/005 ,  C08F2438/00

    摘要： Provided is a catalyst used for a living radical polymerization method, which contains a central element consisting of carbon and at least one halogen atom binding to the central element. Further, a hydrocarbon compound can be used as a catalyst precursor. A monomer having a radical-reactive unsaturated bond is subjected to a radical polymerization reaction in the presence of the catalyst, consequently a polymer having narrow molecular weight distribution can be obtained, and thus the cost of the living radical polymerization can be remarkably reduced. The present invention is significantly more environmentally friendly and economically excellent than conventional living radical polymerization methods, due to advantages such as low toxicity of the catalyst, low amount of the catalyst used, high solubility of the catalyst, mild reaction conditions, and no coloration/no odor (no need of any post-treatments for a molded article), and the like.

    摘要翻译： 提供了用于活性自由基聚合法的催化剂，其包含由碳和与中心元素结合的至少一个卤素原子组成的中心元素。 此外，可以使用烃化合物作为催化剂前体。 具有自由基反应性不饱和键的单体在催化剂的存在下进行自由基聚合反应，因此可以获得具有窄分子量分布的聚合物，从而可显着降低活性自由基聚合的成本。 本发明由于催化剂的毒性低，催化剂用量少，催化剂溶解性高，反应条件温和，无着色/无色性等优点，比现有的活性自由基聚合法更具环保性和经济性， 无异味（不需要对成形品进行后处理）等。