SETTING RETARDER FOR HYDRATE-FORMING BINDERS
    7.
    发明申请
    SETTING RETARDER FOR HYDRATE-FORMING BINDERS 有权
    水泥成型胶粘剂的设定拖链

    公开(公告)号:US20130289169A1

    公开(公告)日:2013-10-31

    申请号:US13978793

    申请日:2012-03-08

    IPC分类号: C04B24/28

    摘要: A method for producing a setting retarder for hydrate-forming binders, wherein a) a first reactant A, comprising an amino acid and/or an amino acid derivative, is reacted with b) a second reactant C, including an amine-free carboxylic acid and/or an amine-free carboxylic acid derivative, to form a reaction product, characterized in that the reaction is carried out at a pH value of 7.5-11.5 and the pH value is held constant in the specified range of 7.5-11.5 during the reaction. In order to hold the pH value constant in the specified range and to avoid fluctuations, in one process step an aqueous solution of reactant A is prepared and a pH of 7.5-11.5, preferably 8-11, in particular 8.5-10.5, is set by adding a base.

    摘要翻译: 一种用于制备水合物形成粘合剂的固化缓凝剂的方法,其中a)包含氨基酸和/或氨基酸衍生物的第一反应物A与b)第二反应物C,包括不含胺的羧酸 和/或不含胺的羧酸衍生物反应形成反应产物,其特征在于反应在7.5-11.5的pH值下进行,并且pH值在7.5-11.5的规定范围内保持恒定 反应。 为了将pH值保持在规定范围内并避免波动,在一个工艺步骤中,制备反应物A的水溶液,并且设定7.5-11.5,优选8-11,特别是8.5-10.5的pH, 通过添加基数。

    Setting retarder for hydrate-forming binders
    10.
    发明授权
    Setting retarder for hydrate-forming binders 有权
    凝胶缓凝剂用于水合物形成粘合剂

    公开(公告)号:US08853305B2

    公开(公告)日:2014-10-07

    申请号:US13978793

    申请日:2012-03-08

    IPC分类号: C04B24/28

    摘要: A method for producing a setting retarder for hydrate-forming binders, wherein a) a first reactant A, comprising an amino acid and/or an amino acid derivative, is reacted with b) a second reactant C, including an amine-free carboxylic acid and/or an amine-free carboxylic acid derivative, to form a reaction product, characterized in that the reaction is carried out at a pH value of 7.5-11.5 and the pH value is held constant in the specified range of 7.5-11.5 during the reaction. In order to hold the pH value constant in the specified range and to avoid fluctuations, in one process step an aqueous solution of reactant A is prepared and a pH of 7.5-11.5, preferably 8-11, in particular 8.5-10.5, is set by adding a base.

    摘要翻译: 一种用于制备水合物形成粘合剂的固化缓凝剂的方法,其中a)包含氨基酸和/或氨基酸衍生物的第一反应物A与b)第二反应物C,包括不含胺的羧酸 和/或不含胺的羧酸衍生物反应形成反应产物,其特征在于反应在7.5-11.5的pH值下进行,并且pH值在7.5-11.5的规定范围内保持恒定 反应。 为了将pH值保持在规定范围内并避免波动,在一个工艺步骤中,制备反应物A的水溶液,并且设定7.5-11.5,优选8-11,特别是8.5-10.5的pH, 通过添加基数。