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334 条记录 (耗时 0.016 秒)

    Process for the manufacture of at least substantially balanced organopolysiloxane mixtures with silyl halide groupings
    41.
    发明授权
    Process for the manufacture of at least substantially balanced organopolysiloxane mixtures with silyl halide groupings 失效
    用甲硅烷基卤化物基团制造至少基本平衡的有机聚硅氧烷混合物的方法

    公开(公告)号：US4044038A

    公开(公告)日：1977-08-23

    申请号：US683085

    申请日：1976-05-04

    申请人： Gerd Rossmy

    发明人： Gerd Rossmy

    IPC分类号： C07F7/08 ,  C08G77/10

    CPC分类号： C08G77/10 ,  C07F7/0874

    摘要： The invention relates to a process for the preparation of at least substantially equilibrated organopolysiloxane mixtures with silyl halide groupings through redistribution of siloxane and silyl halide groupings in the process of equilibrating catalysts, if necessary at elevated temperatures.

    摘要翻译： 本发明涉及一种在平衡催化剂的过程中，如果需要，在升高的温度下，通过重新分配硅氧烷和甲硅烷基卤化物基团，通过甲硅烷基卤化物基团制备至少基本平衡的有机聚硅氧烷混合物的方法。

    Process for the preparation of cyclic polydiorganosiloxanes
    42.
    发明授权
    Process for the preparation of cyclic polydiorganosiloxanes 失效
    环状聚二有机硅氧烷的制备方法

    公开(公告)号：US3989733A

    公开(公告)日：1976-11-02

    申请号：US429272

    申请日：1973-12-28

    申请人： Haruo Okamoto ,  Isao Yanagisawa

    发明人： Haruo Okamoto ,  Isao Yanagisawa

    IPC分类号： C07F7/08 ,  C07F7/21

    CPC分类号： C07F7/0874 ,  C07F7/21

    摘要： Cyclic polydiorganosiloxanes, in particular, cyclic trisiloxanes are continuously prepared from mixed polydiorganosiloxane, the starting material, by subjecting them to thermal cracking and rectification in a reactor composed of a column, vertically held, comprising a catalyst zone at the lower part in which the thermal cracking takes place to produce cyclic polydiorganosiloxanes and a rectification zone at the upper part in which the cyclic polydiorganosiloxanes are rectified into several fractions and a still positioned below the column. The cyclic polydiorganosiloxanes have structures different from the starting polydiorganosiloxanes.

    摘要翻译： 环状聚二有机硅氧烷，特别是环状三硅氧烷，通过在由垂直保持的塔构成的反应器中进行热裂解和精馏，从混合的聚二有机硅氧烷连续制备，该反应器在下部具有催化剂区，其中热 发生开裂以生产环状聚二有机硅氧烷和上部的整流区，其中环状聚二有机硅氧烷被整流成几个馏分，并且仍然位于塔的下方。 环状聚二有机硅氧烷具有不同于起始聚二有机硅氧烷的结构。

    Equilibrated mixtures of organopolysiloxanes containing sulfonic acid groups and process for the preparation of such organopolysiloxanes
    43.
    发明授权
    Equilibrated mixtures of organopolysiloxanes containing sulfonic acid groups and process for the preparation of such organopolysiloxanes 失效
    含有磺酸基团的有机聚硅氧烷的平衡混合物和制备这种有机聚硅氧烷的方法

    公开(公告)号：US3948963A

    公开(公告)日：1976-04-06

    申请号：US472360

    申请日：1974-05-22

    申请人： Gerd Rossmy

    发明人： Gerd Rossmy

    IPC分类号： C07F7/08 ,  C08G77/04 ,  C08G77/10 ,  C08G77/392 ,  C08G77/48

    CPC分类号： C08G77/10 ,  C07F7/0874 ,  C07F7/0887 ,  C08G77/045 ,  C08G77/392 ,  C08G77/48

    摘要： The disclosed equilibrated mixtures of organopolysiloxanes containing sulfonic acid groups have the average unit formula ##EQU1## In this formula, b has a value of from 0 to 50, preferably 0 to 10; A IS A NUMERAL WHICH IS SELECTED SO THAT THE AVERAGE UNIT MOLECULE COMPRISES 2 TO 100, PREFERABLY 4 TO 50 SILICON ATOMS AND THE RATIO OF R.sup.3 groups which are not linked to trifunctional Si-atoms to R.sup.3 groups which are linked to trifunctional Si-atoms is at least 4;R.sup.3 is alkyl, substituted alkyl, aryl or substituted aryl; andX is halogen, ##EQU2## wherein R.sup.1 is alkyl, aryl or alkaryl, or ##EQU3## wherein R.sup.4 is divalent hydrocarbon, at least 3% of X constituting said ##EQU4## or ##EQU5## groups, the number of said ##EQU6## groups in the unit not exceeding 10. The novel equilibrated mixtures of sulfonic acid groups containing organopolysiloxanes may be directly used as equilibration and polymerization catalysts for organopolysiloxane systems. They also serve as intermediaries in the production of foam stabilizers. Numerous other uses for the novel compounds are disclosed in the application.

    摘要翻译： 所公开的含有磺酸基的有机聚硅氧烷的平衡混合物具有平均单元式R 3 R 3 R 3 R 3 ||| X-Si-O-Si-O-Si-O-Si-X ||| R3|R3R3R3R3 a|||a- 1 O-Si-O-Si-X || R3R3 a-1b在该式中，b具有0至50，优选0至10的值; 所选择的数字是这样选择的，即平均单元分子包含2至100个，优选4至50个硅原子和不与三官能Si原子连接至与三官能Si原子连接的R 3基团的R 3基团的比例 至少4; R3是烷基，取代的烷基，芳基或取代的芳基; 其中R 1为烷基，芳基或烷芳基，或OO并行对偶-O-S-R 4 -S-O-平行平行O 0。

    Process for the preparation of nitriles from acids and organosilyamines
    44.
    发明授权
    Process for the preparation of nitriles from acids and organosilyamines 失效
    从酸和有机甲硅烷胺制备腈的方法

    公开(公告)号：US3884957A

    公开(公告)日：1975-05-20

    申请号：US44468074

    申请日：1974-02-21

    申请人： RHONE POULENC SA

    发明人： BAKASSIAN GEORGES ,  LEFORT MARCEL

    IPC分类号： C07F7/08 ,  C07F7/10 ,  C07C121/02

    CPC分类号： C07C253/22 ,  C07F7/0874 ,  C07F7/10 ,  C07C255/51 ,  C07C255/33 ,  C07C255/53

    摘要： GROUP IN THE PRESENCE OF A Lewis acid. Aliphatic, aromatic and heterocyclic nitriles are prepared using hexamethyldisilazane or polydimethylcyclosilazane and aluminium or zinc chloride.

    Nitriles are prepared from carboxylic acids in a single stage and in high yield by heating the acid with a primary silylamine or linear of cyclic silazane containing a

    D R A W I N G

    摘要翻译： 通过在一个阶段中由羧酸制备腈，并且通过在初始甲硅烷基胺或含有在路易斯酸存在下的基团的环状硅氮烷的线性下加热酸而以高收率制备。 使用六甲基二硅氮烷或聚二甲基环硅氮烷和铝或氯化锌制备脂族，芳族和杂环腈。

    Polyether urethane foam
    45.
    发明授权
    Polyether urethane foam 失效
    聚乙烯泡沫

    公开(公告)号：US3839384A

    公开(公告)日：1974-10-01

    申请号：US30571372

    申请日：1972-11-13

    申请人： UNION CARBIDE CORP

    发明人： MOREHOUSE E

    IPC分类号： C08G18/00 ,  C07F7/08 ,  C08G77/04 ,  C08J9/00

    CPC分类号： C08J9/0042 ,  C07F7/0849 ,  C07F7/0874 ,  C08G77/045 ,  C08J2375/08

    摘要： WHAT IS CLAIMED IS: 1. AN ARALKYL MODIFIED SILOXANE OIL HAVING THE AVERAGE FORMULA

    (X)2R3-ZSIO(R2SIO)X((X)(R)SIO)YSIR3-ZXZ

    WHEREIN X HAS A VALUE OF 2 TO 8 INCLUSIVE; Y HAS A VALUE OF 0 TO 6 INCLUSIVE; Z HAS A VALUE OF 0 TO 1 INCLUSIVE; R IS A LOWER ALKYL OR PHENYL RADICAL; AND X IS AN ARALKYL RADICAL OF THE FORMULA

    -CNH2N-C6H5

    WHRE A HAS A VALUE OF 2 OR 3; SAID SILOXANE CONTAINING AT LAST ONE OF SAID ARALKYL RADICALS AND HAVING A VISCOSITY IN THE RANGE OF ABOUT 4 TO ABOUT 40 CENTISTOKES AT 25* C.

    Organosilicon compounds and process for their preparation
    50.
    发明授权
    Organosilicon compounds and process for their preparation 失效
    有机硅化合物及其制备方法

    公开(公告)号：US3418352A

    公开(公告)日：1968-12-24

    申请号：US38452564

    申请日：1964-07-22

    申请人： GOLDSCHMIDT AG TH

    发明人： GERD ROSSMY

    IPC分类号： C07F7/08 ,  C08G77/00 ,  C08G77/48 ,  C09K3/16

    CPC分类号： C09K3/16 ,  C07F7/0856 ,  C07F7/0874 ,  C07F7/0889 ,  C08G77/00 ,  C08G77/48

    摘要： The invention comprises sulphate-containing siloxanes of the formulae wherein R1 is Cl-6 alkyl radical or trialkylsilyl radical, at least 50% of R1 consisting of the latter, R is a monovalent hydrocarbon or halohydrocarbon radical, M is an alkylene radical which bridges the silicon and oxygen atoms through at least three carbon atoms, each X is a hydrogen atom, or one equivalent of a metal or NHR13, wherein R1 is a hydrogen atom or a hydrocarbon or substituted hydrocarbon radical; and x=0 to 1, y=2 to 3, z=1 to 10 and x+y=3. R is preferably an C1- 4 alkyl radical, and M is preferably (CH2)3 or (CH2)4. Specified X radicals are Na, K, Ca, Al, Zr and those derived from ammonia, hydrazine, amines, polyamines, alkanol amines, heterocyclic amines and quaternary ammonium compounds; many examples are given. Compounds of Formulae (I) and (II) are prepared by reacting an organo - silicon compound RxYySi(MOCOR)4-(x+y)with chlorosulphonic acid yielding a compound of the unit formula this is reacted with a hexa-alkyl disiloxane, R3SiOSiR3, and the R3SiY produced distilled off yielding SiRx(R3SiO)y(MO-SO2.OSiR3) which is further heated giving compounds of Formula (II). The products are subjected to hydrolysis or alcoholysis optionally followed by neutralization. A typical Example (1) describes the preparation of and the disiloxane obtained by replacing one (CH3)Si group by C2H5. Uses.-In lacquers and varnishes as spreading agents, antistatic agents, preventing glass fogging, wetting agent, in polyurethane foams, glass fibre finishing agents.