VERFAHREN ZUR HERSTELLUNG VON (METH)ACRYLSÄUREESTERN
    1.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON (METH)ACRYLSÄUREESTERN 审中-公开
    VERFAHREN ZUR HERSTELLUNG VON(METH)ACRYLSÄUREESTERN

    公开(公告)号:EP2649038A1

    公开(公告)日:2013-10-16

    申请号:EP11796659.8

    申请日:2011-12-06

    IPC分类号: C07C67/08 C07C69/54

    摘要: The present invention relates to a process for preparing (meth)acrylic esters by reacting an alcohol phase with a (meth)acrylic acid phase, which comprises the process step: - contacting of a liquid phase comprising the (meth)acrylic ester and unreacted (meth)acrylic acid with a base and neutralization of the unreacted (meth)acrylic acid by the base, wherein at least one of the following conditions is fulfilled: i) the pH of the liquid phase after contacting with the base is not more than 10.5; ii)the base is used in such an amount that the molar ratio of hydroxide ions which the base is able to liberate to (meth)acrylic acid (OH
    - :(meth)acrylic acid) is not more than 1.10:1. The present invention also relates to a (meth)acrylic ester, a process for preparing a polymer based on (meth)acrylic esters and also the polymer which is based on (meth)acrylic esters and can be obtained by this process.

    摘要翻译: 本发明涉及一种通过使醇相与(甲基)丙烯酸相反应制备(甲基)丙烯酸酯的方法,该方法包括以下步骤: - 将包含(甲基)丙烯酸酯和未反应( (甲基)丙烯酸,碱处理未反应的(甲基)丙烯酸,其中满足以下条件中的至少一个:i)与碱接触后液相的pH不大于10.5 ; ii)碱的用量使得碱能够释放到(甲基)丙烯酸(OH - (甲基)丙烯酸)的氢氧根离子的摩尔比不大于1.10:1。 本发明还涉及(甲基)丙烯酸酯,制备基于(甲基)丙烯酸酯的聚合物的方法,以及基于(甲基)丙烯酸酯的聚合物,并且可以通过该方法获得。