POLYMERS HAVING CHELATING FUNCTIONALITY
    1.
    发明申请
    POLYMERS HAVING CHELATING FUNCTIONALITY 审中-公开
    具有衔接功能的聚合物

    公开(公告)号:US20130109823A1

    公开(公告)日:2013-05-02

    申请号:US13665125

    申请日:2012-10-31

    CPC classification number: C08F22/02 C08F22/38 C08F24/00 C08F28/02

    Abstract: The present invention provides novel polymers having chelating functionality and comprising units derived from an ethylenically unsaturated aminocarboxylate monmomer which comprises units derived from ethylenediamino disuccinic acid or its salt and a polymerizable ethylenically unsaturated monomer. The polymerizable ethylenically unsaturated monomer may be selected from divinylbenzene monoepoxide, allylglicidyl ether, and glycidyl(meth)acrylate. The polymer may also comprise units derived from one or more ethylenically unsaturated monomers.

    Abstract translation: 本发明提供具有螯合官能度的新型聚合物,并且包含衍生自烯属不饱和氨基羧酸酯单体的单元,其包含衍生自乙二氨基二琥珀酸或其盐的单体和可聚合的烯属不饱和单体。 可聚合的烯属不饱和单体可以选自二乙烯基苯单环氧化物,烯丙基缩水甘油醚和(甲基)丙烯酸缩水甘油酯。 聚合物还可以包含衍生自一种或多种烯属不饱和单体的单元。

    PREPARATION OF A HYDROXYALKYL PHOSPHONIC ACID
    2.
    发明申请
    PREPARATION OF A HYDROXYALKYL PHOSPHONIC ACID 审中-公开
    羟基磷酸的制备

    公开(公告)号:US20150361117A1

    公开(公告)日:2015-12-17

    申请号:US14733016

    申请日:2015-06-08

    CPC classification number: C07F9/3808

    Abstract: The present invention is a process for converting a phosphonate to a hydroxyalkyl phosphonic acid comprising the step of contacting together water, the phosphonate, and a sulfonated or phosphonated heterogeneous catalyst under conditions sufficient to convert at least 50% of the phosphonate to the hydroxyalkyl phosphonic acid. The process of the present invention provides a way of preparing hydroxyalkyl phosphonic acids safely and economically, without corrosive effects.

    Abstract translation: 本发明是一种将膦酸酯转化为羟基烷基膦酸的方法,其包括在足以将至少50%的膦酸酯转化成羟烷基膦酸的条件下将水,膦酸酯和磺化或膦酸化的非均相催化剂接触在一起的步骤 。 本发明的方法提供了安全且经济地制备羟基烷基膦酸的方法,没有腐蚀作用。

    Preparation of a hydroxyalkyl phosphonic acid

    公开(公告)号:US10246474B2

    公开(公告)日:2019-04-02

    申请号:US14733016

    申请日:2015-06-08

    Abstract: The present invention is a process for converting a phosphonate to a hydroxyalkyl phosphonic acid comprising the step of contacting together water, the phosphonate, and a sulfonated or phosphonated heterogeneous catalyst under conditions sufficient to convert at least 50% of the phosphonate to the hydroxyalkyl phosphonic acid. The process of the present invention provides a way of preparing hydroxyalkyl phosphonic acids safely and economically, without corrosive effects.

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