IODO COMPOUNDS
    81.
    发明公开
    IODO COMPOUNDS 失效
    JODVERBINDUNGEN。

    公开(公告)号:EP0461154A1

    公开(公告)日:1991-12-18

    申请号:EP90903910.0

    申请日:1990-02-28

    IPC分类号: C07C69 C07C205

    摘要: On décrit la production de composés diacétoxyarènes par la réaction d'un perborate, tel que le monohydrate ou tétrahydrate de perborate de sodium, et d'un acide acétique avec un compsosé iodoarène dans des conditions modérées comprises entre 40°C et 50°C. L'iodoarène peut par ailleurs être remplacé par une grande variété de subsitutants, tels que halo, nitro, alkyle, l'acide alhexy ou carboxylique, en toute position autour du noyau, à l'exception des substituants capteurs d'électrons qui occupent seulement des positions méta. Le procédé de l'invention permet de produire une grande gamme de composés diacétoxyarènes à substitution au moyen de matériaux faciles à manipuler et très répandus, dans des conditions de réaction modérées.

    STABILISATION OF HYDROGEN PEROXIDE SOLUTIONS
    82.
    发明公开
    STABILISATION OF HYDROGEN PEROXIDE SOLUTIONS 失效
    稳定化的过氧化氢溶液。

    公开(公告)号:EP0460164A1

    公开(公告)日:1991-12-11

    申请号:EP91901413.0

    申请日:1990-12-20

    IPC分类号: A61L2 C01B15 C11D3 C11D7

    CPC分类号: C01B15/037 C11D3/394

    摘要: Des solutions alcalines aqueuses diluées de peroxyde d'hydrogène obtenues par dilution et addition d'acali à une solution acide concentrée de peroxyde d'hydrogène et par addition d'un composé d'acide phosphonique d'aminopolyalkylène comme stabilisant peuvent présenter une stabilité améliorée si l'on prévoit, entre l'addition du stabilisant et la formation de la solution alcaline diluée, un délai suffisant pour permettre au stabilisant de se transformer en un dérivé plus actif. De préférence, le stabilisant introduit est du cyclohexane-1,2-diaminotétrakis (acide phoshonique de méthylène), et la solution diluée présente un pH de 8,5 à 9,5, et renferme comme tampon du pyrophosphate et/ou bicarbonate de sodium dont au moins une partie peut être ajoutée, avant dilution, à la solution concentrée de peroxyde d'hydrogène.

    Bleach activation
    84.
    发明公开
    Bleach activation 失效
    漂白激活

    公开(公告)号:EP0272030A3

    公开(公告)日:1989-03-22

    申请号:EP87310731.2

    申请日:1987-12-07

    IPC分类号: C11D3/395

    CPC分类号: C11D3/3932

    摘要: It is desired to enhance the ability of hydrogen peroxide and persalts at wash temperatures of around 30 to 70°C, in order to use less energy and to minimise damage to various fabric finishes. It has been proposed in the past to use transition metal compounds, including cobaltous compounds for this purpose, but the literature is self-conflicting in the way to do this. In repeat trials the simple cobaltous salts did not show much activation. The invention provides a class of activators for persalts and hydrogen peroxide comprising cobalt III ammine complexes, preferably containing 4 or 5 ammine ligands obeying the formula:-
        Co[(NH₃) n M m B b T t Q q ] Y y
    Preferred complexes contain a chloride, bromide, hydroxyl or water ligand. Such complexes can activate particularly well at above about pH10.2, which can vary from complex to complex, and retain activity in the presence of normal concentrations of many heavy duty washing compositions. At wash pHs below that pH, activity is exhibited in the presence of a promoter substance, namely an alkaline earth metal salt.

    Preparation of esters
    87.
    发明公开
    Preparation of esters 失效
    Verfahren zur Herstellung von Estern。

    公开(公告)号:EP0294073A1

    公开(公告)日:1988-12-07

    申请号:EP88304690.6

    申请日:1988-05-24

    IPC分类号: C07C309/58

    CPC分类号: C07C309/00

    摘要: Hitherto processes proposed in recent years for preparing esters of phenol sulphonate salts by reaction between a carboxylic acid chloride and a phenol sulphonate salt place considerable emphasis upon dehydrating the reactants before they are brought into contact in an organic solvent reaction medium.
    The present invention avoids the problems of employing non-aqueous solvents by carrying out the reaction under aqueous conditions but with controlled alkalinity and water content, especially at a base to phenol sulphonate mole ratio of from 1.3:1 to 1.6:1 and a total water to phenol sulphonate (as the anhydrous material) of not more than 4.5:1. The reaction advantageously employs in preference only a small molar excess of carboxylic acid chloride over the phenol sulphonate and preferably has a reaction temperature controlled to below 30°C, especially 5 to 20°C.
    In a further improvement to the process, the difficulty of enhanced contamination with benzoic acid in the products can be ameliorated by employing a small but effective amount of a surfactant, especially an alcohol ethoxylate, in the reaction mixture.
    The process is especially well suited to making sodium benzoyl oxybenzene sulphonate from sodium phenol sulphonate dihydrate and benzoyl chloride.

    摘要翻译: 迄今为止,通过羧酸酰氯和苯酚磺酸盐之间的反应制备苯酚磺酸盐的酯,近年来提出的方法相当强调在反应物在有机溶剂反应介质中接触之前脱水。 本发明避免了在含水条件下进行反应而使用非水溶剂的问题,但是具有可控的碱度和含水量,特别是在碱与苯酚磺酸盐摩尔比为1.3:1至1.6:1的条件下,总的水 至酚磺酸盐(作为无水物质)不超过4.5:1。 该反应优选仅使用少量摩尔过量的羧酰氯与苯酚磺酸盐相比,优选将反应温度控制在低于30℃,特别是5至20℃。在该方法的进一步改进中, 通过在反应混合物中使用小但有效量的表面活性剂,特别是醇乙氧基化物,可以改善产物中苯甲酸的增强污染。 该方法特别适用于从苯酚磺酸钠二水合物和苯甲酰氯制备苯甲酰基苯氧基苯磺酸钠。

    Surface treatment of Peroxyacids
    90.
    发明公开
    Surface treatment of Peroxyacids 失效
    OberflächenbehandlungvonPeroxysäuren。

    公开(公告)号:EP0239294A1

    公开(公告)日:1987-09-30

    申请号:EP87302171.1

    申请日:1987-03-13

    IPC分类号: C11D3/39 C07C179/10

    CPC分类号: C11D3/3945 C11D3/30 C11D3/39

    摘要: Under conditions of misuse, water-soluble peroxyacids when they are left in direct contact with dyed fabrics can cause spotting and dye damage. The problem can be ameliorated by surface-treating the peroxyacid with an effective amount, preferably selected in the range of 8 to 25% w/w based on the peroxyacid, of aliphatic amines which melt or soften at about 30 to 70°C. Preferred agents include hydrogenated tallow amine dicocoamine and methyl dihydrogenated tallow amine. The agent can be applied in molten fashion or in inert solvent such as a chlorinated aliphatic hydrocarbon onto agitated particles of the peroxyacid.

    摘要翻译: 在误用条件下,水溶性过氧酸当与染色织物直接接触时会导致染色和染料损伤。 通过在约30-70℃熔化或软化的脂族胺表面处理过氧酸,可有效量,优选在8至25%w / w范围内以过氧酸为基准进行表面处理来改善该问题。 试剂包括氢化牛油胺二油酸和甲基二氢化牛油胺。 该试剂可以以熔融方式或在诸如氯化脂族烃的惰性溶剂中施用到过氧酸的搅拌颗粒上。