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    VERFAHREN ZUR HERSTELLUNG VON (POLY-C2-C4-ALKYLENGLYKOL)-MONO(METH)ACRYLSÄUREESTERN
    2.
    发明授权
    VERFAHREN ZUR HERSTELLUNG VON (POLY-C2-C4-ALKYLENGLYKOL)-MONO(METH)ACRYLSÄUREESTERN 有权
    VERFAHREN ZUR HERSTELLUNG VON（POLY-C2-C4-ALKYLENGLYKOL）-MONO（METH）ACRYLSÄUREESTERN

    公开(公告)号：EP1789462B1

    公开(公告)日：2008-02-20

    申请号：EP05785644.5

    申请日：2005-09-02

    申请人： BASF Aktiengesellschaft

    发明人： BECKER, Stefan ,  PASTRE, Jörg ,  PAKUSCH, Joachim ,  GÖTZ, Thomas ,  BUREK, Arnold ,  HANSCH, Wolfgang ,  SPILGER, Stefanie

    IPC分类号： C08F290/06 ,  C07C69/54

    CPC分类号： C08F299/065 ,  C08G65/3322

    摘要： The invention relates to a method for producing (poly-C 2 -C 4 alkylene glycol)-monoacrylic esters and -monomethacrylic esters, and to a method for producing copolymers of such (poly-C 2 -C 4 alkylene glycol)-mono(meth)acrylic esters with acrylic ester or methacrylic ester and to the use of the polymers as liquefying additives in cement-containing preparations. The (poly-C 2 -C 4 alkylene glycol)-monoacrylic esters and -monomethacrylic esters are produced by reacting acrylic anhydride or methacrylic anhydride (referred to in the following as (meth)acrylic anhydride (A)) with at least one OH group-carrying poly-C 2 -C 4 alkylene glycol compound (P) in the presence of a base, said base being selected from the group of basic compounds that have, at 90° C, a solubility in the poly-C 2 -C 4 alkylene glycol compound (P) of not more than 10 g/l, the molar ratio of (meth)acrylic anhydride (A) to compound (P) (molar ratio (A):(P)) being in the range of from 1:1 to 1.095:1, preferably in the range of from 1.005:1 to 1.09:1, especially in the range of from 1.01:1 to 1.085:1 and most preferred in the range of from 1.02:1 to 1.08:1. The production of (meth)acrylic acid with (poly-C 2 -C 4 alkylene glycol)-mono(meth)acrylic esters comprises the following steps: i) production of a (poly-C 2 -C 4 alkylene glycol)mono(meth)acrylic ester by reacting (meth)acrylic anhydride (A) with at least one OH group-carrying poly-C 2 -C 4 alkylene glycol compound (P) in the presence of a base according to the inventive method, and ii) radical copolymerization of the (poly-C 2 -C 4 alkylene glycol)mono(meth)acrylic ester obtained in step i) with acrylic acid and/or methacrylic acid and optionally additional ethylenically unsaturated monomers.

    摘要翻译： 生产（聚C 2 -C 4亚烷基二醇） - 单（甲基）丙烯酸酯和单甲基丙烯酸酯的方法及其制备方法本发明涉及生产（聚C 2 -C 4亚烷基二醇） - 单（甲基）丙烯酸酯和单甲基丙烯酸酯的方法 与丙烯酸酯或甲基丙烯酸酯的混合物以及该聚合物在含水泥制剂中作为液化添加剂的用途。 （聚C 2 -C 4亚烷基二醇）单丙烯酸酯和单甲基丙烯酸酯通过使丙烯酸酐或甲基丙烯酸酐（以下称为（甲基）丙烯酸酐（A））与至少一个携带OH基团 聚C 2 -C 4亚烷基二醇化合物（P）在碱的存在下反应，所述碱选自在90℃下在所述聚C 2 -C 4亚烷基二醇化合物中具有溶解度的碱性化合物（P ）不超过10g / l，（甲基）丙烯酸酐（A）与化合物（P）的摩尔比（摩尔比（A）：（P））为1：1至1.095： 1，优选1.005:1至1.09:1，特别是1.01:1至1.085:1，最优选1.02:1至1.08:1。 （甲基）丙烯酸与（聚C 2 -C 4亚烷基二醇） - 单（甲基）丙烯酸酯的生产包括以下步骤：i）生产（聚C 2 -C 4亚烷基二醇）单（甲基）丙烯酸酯 （甲基）丙烯酸酐（A）与至少一种带有OH基的聚C 2 -C 4亚烷基二醇化合物（P）在碱存在下根据本发明方法反应，和ii）（聚 -C 2 -C 4亚烷基二醇）单体（甲基）丙烯酸酯与丙烯酸和/或甲基丙烯酸以及任选另外的烯键式不饱和单体反应。

    VERFAHREN ZUR HERSTELLUNG VON (POLY-C2-C4-ALKYLENGLYKOL)-MONO(METH)ACRYLSÄUREESTERN
    3.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON (POLY-C2-C4-ALKYLENGLYKOL)-MONO(METH)ACRYLSÄUREESTERN 有权
    用于制备（POLY-C 2 -C 4亚烷基二醇）单（甲基）丙烯酸酯的

    公开(公告)号：EP1789462A1

    公开(公告)日：2007-05-30

    申请号：EP05785644.5

    申请日：2005-09-02

    申请人： BASF Aktiengesellschaft

    发明人： BECKER, Stefan ,  PASTRE, Jörg ,  PAKUSCH, Joachim ,  GÖTZ, Thomas ,  BUREK, Arnold ,  HANSCH, Wolfgang ,  SPILGER, Stefanie

    IPC分类号： C08F290/06 ,  C07C69/54

    CPC分类号： C08F299/065 ,  C08G65/3322

    摘要： The invention relates to a method for producing (poly-C2-C4 alkylene glycol)-monoacrylic esters and -monomethacrylic esters, and to a method for producing copolymers of such (poly-C2-C4 alkylene glycol)-mono(meth)acrylic esters with acrylic ester or methacrylic ester and to the use of the polymers as liquefying additives in cement-containing preparations. The (poly-C2-C4 alkylene glycol)-monoacrylic esters and -monomethacrylic esters are produced by reacting acrylic anhydride or methacrylic anhydride (referred to in the following as (meth)acrylic anhydride (A)) with at least one OH group-carrying poly-C2-C4 alkylene glycol compound (P) in the presence of a base, said base being selected from the group of basic compounds that have, at 90° C, a solubility in the poly-C2-C4 alkylene glycol compound (P) of not more than 10 g/l, the molar ratio of (meth)acrylic anhydride (A) to compound (P) (molar ratio (A):(P)) being in the range of from 1:1 to 1.095:1, preferably in the range of from 1.005:1 to 1.09:1, especially in the range of from 1.01:1 to 1.085:1 and most preferred in the range of from 1.02:1 to 1.08:1. The production of (meth)acrylic acid with (poly-C2-C4 alkylene glycol)-mono(meth)acrylic esters comprises the following steps: i) production of a (poly-C2-C4 alkylene glycol)mono(meth)acrylic ester by reacting (meth)acrylic anhydride (A) with at least one OH group-carrying poly-C2-C4 alkylene glycol compound (P) in the presence of a base according to the inventive method, and ii) radical copolymerization of the (poly-C2-C4 alkylene glycol)mono(meth)acrylic ester obtained in step i) with acrylic acid and/or methacrylic acid and optionally additional ethylenically unsaturated monomers.