N,N'-disubstituted and N,N,N'-/N,N', N'-trisubstituted thioureas and
method of their preparation (II)
    2.
    发明授权
    N,N'-disubstituted and N,N,N'-/N,N', N'-trisubstituted thioureas and method of their preparation (II) 失效
    N,N'-二取代和N,N,N' - / N,N',N'-三取代硫脲及其制备方法(II)

    公开(公告)号:US5049690A

    公开(公告)日:1991-09-17

    申请号:US556544

    申请日:1990-07-24

    IPC分类号: C07F7/10 C07F7/18

    CPC分类号: C07F7/1836 C07F7/182

    摘要: N,N'-disubstituted or N,N,N'- or N,N',N'-trisubstituted thioureas with additional organyloxysilyl function and tertiary amine function of the general formula ##STR1## These compounds are prepared as follows: a) Aminoorganylsilanes of the general formula ##STR2## are reacted in an organic, inert solvent with carbon disulfide, b) The dithiocarbamates formed thereby having the general formula: ##STR3## are isolated and combined with at least the equimolar amount of an amino compound of the general formulaH.sub.2 N--(CH.sub.2).sub.n --NR.sup.3.sub.2, this mixture is heated until the reaction is completed and the desired product is subsequently isolated.

    摘要翻译: N,N'-二取代的N,N,N'-或N,N',N'-三取代的硫脲,具有另外的有机氧基甲硅烷基官能团和叔胺官能团,通式如下:a)氨基有机基硅烷 通式[IMAGE]在有机惰性溶剂中与二硫化碳反应,b)由此形成的具有以下通式的二硫代氨基甲酸酯:分离并与至少等摩尔量的一般的氨基化合物 (CH2)n-NR32,将该混合物加热至反应完成,随后分离所需产物。

    Aminoalkyl-substituted organopolysiloxane thiourea derivatives and
methods of preparation and use thereof
    5.
    发明授权
    Aminoalkyl-substituted organopolysiloxane thiourea derivatives and methods of preparation and use thereof 失效
    氨基烷基取代的有机聚硅氧烷硫脲衍生物及其制备和使用方法

    公开(公告)号:US5061773A

    公开(公告)日:1991-10-29

    申请号:US558867

    申请日:1990-07-30

    摘要: Aminoalkyl-substituted organopolysiloxane thioureas are disclosed which consist of the units ##STR1## whereby R.sup.1 stands for a group ##STR2## R.sup.5 is an alkylene grouping, R.sup.2 is equal to R.sup.1 or H, R.sup.3 is equal to R.sup.1 or H or a group (CH.sub.2).sub.n --N(R.sup.6).sub.2 (III) (in which n=1-6, R.sup.6 =H or an alkyl group with C.sub.1 -C.sub.5) and R.sup.4 =H or a group of the formula (III), whereby (I) contains at most 2 (III) groups and at most 2 (III) groups and the free valances of the oxygen atoms sitting on the silicon atom are saturated by silicon atoms of other (III) groups, optionally with the insertion of cross-linking agents containing Si, Ti or Zr. The compounds can be random copolycondensates, block copolycondensates or mixed copolycondensates in relation to the optionally present cross-linking agents. In addition, various methods of preparing the compounds are indicated. The compounds can be used especially for the removal of dissolved metals from aqueous or organic phases.

    摘要翻译: (I)单元组成的氨基烷基取代的有机聚硅氧烷硫脲,其中R1代表一个基团(II)R5是亚烷基,R2等于R1或H,R3等于R1或 H或基团(CH 2)n N(R 6)2(III)(其中n = 1-6,R 6 = H或具有C 1 -C 5的烷基)和R 4 = H或式(III)的基团, 其中(I)含有至多2个(III)基团和至多2个(III)基团,并且位于硅原子上的氧原子的游离价数被其它(III)基团的硅原子饱和,任选地插入 含有Si,Ti或Zr的交联剂。 所述化合物可以是无规共聚缩合物,相对于任选存在的交联剂阻断共聚缩聚物或混合的共缩聚物。 另外,表示了制备化合物的各种方法。 该化合物特别用于从水相或有机相中除去溶解的金属。

    Organopolysiloxane urea derivatives and organopolysiloxane thiourea
derivatives, methods of their preparation and use
    6.
    发明授权
    Organopolysiloxane urea derivatives and organopolysiloxane thiourea derivatives, methods of their preparation and use 失效
    有机聚硅氧烷脲衍生物和有机聚硅氧烷硫脲衍生物,其制备方法及用途

    公开(公告)号:US5019637A

    公开(公告)日:1991-05-28

    申请号:US431219

    申请日:1989-11-03

    CPC分类号: B01J20/22 C08G77/54 C08G77/58

    摘要: The invention is relative to optionally cross-linked organopolysiloxane urea derivatives and thiourea derivatives consisting of: ##STR1## wherein X stands for 0 or S andR.sup.1 is a group of the formula: ##STR2## in which R.sup.5 is alkylene with 1 to 10 C atoms or cycloalkylene with 5 to 8 C atoms or a group of the formula: ##STR3## with n=1-6 (on the nitrogen)m=0-6 (on the silicon), wherein R.sup.2 has the same meaning as R.sup.1 or stands for H, R.sup.3 and R.sup.4 have the same meaning as R.sup.1 or stands for H or alkyl with 1 to 5 C atoms. At least two but at the most three groups according to formula (2) are bound to the units according to formula (1). The free valances of the oxygen atoms bound to the silicon atom are saturated by silicon atoms of further groups of formula (2) with the optional inclusion of cross-linking agents. In addition, preparative methods for the products and a use for the removal of dissolved metals from liquid phases are indicated.

    摘要翻译: 本发明相对于任选的交联的有机聚硅氧烷脲衍生物和硫脲衍生物,其由以下组成:其中X代表0或S,R1是下式的基团:其中R5是 具有1至10个C原子的亚烷基或具有5至8个碳原子的亚环烷基或具有n = 1-6(在氮上)m = 0-6(在硅上的下式的基团: ),其中R2具有与R 1相同的含义或代表H,R 3和R 4具有与R 1相同的含义或代表H或具有1至5个C原子的烷基。 根据式(2),至少两个但最多三个基团与根据式(1)的单元结合。 与硅原子结合的氧原子的自由价数由另外的式(2)基团的硅原子饱和,任选地包含交联剂。 此外,还指出了产品的制备方法和用于从液相中除去溶解的金属的用途。

    Process for producing carboxylic acid esters and catalysts therefor
    7.
    发明授权
    Process for producing carboxylic acid esters and catalysts therefor 失效
    制备羧酸酯及其催化剂的方法

    公开(公告)号:US5922900A

    公开(公告)日:1999-07-13

    申请号:US922558

    申请日:1997-09-03

    CPC分类号: C07C67/08

    摘要: A process for producing carboxylic acid esters by the following steps:a) preparation of a reaction mixture containing an alcohol and a carboxylic acid and/or a carboxylic anhydride and/or a carboxylic acid ester and or a partially esterified carboxylic acid,b) heating of this mixture to the suitable reaction temperature in the presence of a solid polysiloxane insoluble in the reaction medium and having sulphonic acid groups with intensive thorough mixing accompanied by continuous separation of the reaction water which forms, wherein the polysiloxane used as the catalyst in modified by treatment with a soluble aluminum, titanium or zirconium compound, and the spherical particles thereof have a diameter of 0.01 to 3 mm, a specific surface of 0.1 to 1200 m.sup.2 /g, a specific pore volume of 0.01 to 6.0 ml/g and a bulk density of 50 to 1000 g/l.

    摘要翻译: 一种通过以下步骤制备羧酸酯的方法:a)制备含有醇和羧酸和/或羧酸酐和/或羧酸酯和/或部分酯化的羧酸的反应混合物,b)加热 该混合物在不溶于反应介质的固体聚硅氧烷存在下具有适当的反应温度,并且具有强烈浓缩的磺酸基团,伴随着形成的反应水的连续分离,其中用作催化剂的聚硅氧烷被改性为 用可溶性铝,钛或锆化合物处理,其球形颗粒的直径为0.01〜3mm,比表面积为0.1〜1200m2 / g,比孔体积为0.01〜6.0ml / g,体积 密度为50〜1000g / l。

    Process for the hydriding of halogen-substituted compounds
    10.
    发明授权
    Process for the hydriding of halogen-substituted compounds 失效
    氢化取代的化合物的方法

    公开(公告)号:US5126473A

    公开(公告)日:1992-06-30

    申请号:US565433

    申请日:1990-08-10

    摘要: A process is described for the hydrided of halogen-substituted compounds of the second to fourth period of Groups III to V of the periodic system, with the exception of gallium, aluminum, carbon, or nitrogen. A finely-granulated aluminum is added to a molten salt melt that consists of 50-67 molar % AlCl.sub.3 (anhydrous) and 50 to 33 molar % of sodium chloride. Then to the stirred, or by some other means dispersed suspension, hydrogen is introduced to hydrided the finely-dispersed aluminum. Thereafter the mixture is reacted with the halogen-substituted compound and the resulting hydrided compound is renewed.

    摘要翻译: 描述了除了镓,铝,碳或氮之外,周期性系的第III至V族的第二至第四周期的卤素取代的化合物的氢化方法。 将细粒状的铝加入由50-67摩尔%AlCl 3(无水)和50-33摩尔%氯化钠组成的熔融盐熔体中。 然后通过搅拌或通过其它方式分散悬浮液,引入氢气使细分散的铝水合。 然后将混合物与卤素取代的化合物反应,并且更新所得的氢化化合物。