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    Method for the Continuous Production of Crosslinked Particulate Gel-Type Polymers
    2.
    发明申请
    Method for the Continuous Production of Crosslinked Particulate Gel-Type Polymers 审中-公开
    连续生产交联颗粒凝胶型聚合物的方法

    公开(公告)号：US20080004408A1

    公开(公告)日：2008-01-03

    申请号：US11662824

    申请日：2005-09-21

    申请人： Uwe Stueven ,  Matthias Weismantel ,  Rudiger Funk ,  Annemarie Hillebrecht ,  Dominicus Esbroeck ,  Karl Possemiers ,  Ronny Kaey

    发明人： Uwe Stueven ,  Matthias Weismantel ,  Rudiger Funk ,  Annemarie Hillebrecht ,  Dominicus Esbroeck ,  Karl Possemiers ,  Ronny Kaey

    IPC分类号： C08F2/01

    CPC分类号： B01J19/0066 ,  B01J8/10 ,  B01J2208/0061 ,  C08F2/01 ,  C08F6/008 ,  C08F6/10 ,  C08F220/06 ,  C08F220/56

    摘要： Disclosed is a method for the continuous production of crosslinked, particulate, gel-type polymers by copolymerizing a) water-soluble, monoethylenically unsaturated monomers, b) 0.001 to 5 molar percent of monomers containing at least two polymerizable groups, the percentage being relative to the monomers (a), in a mixer. The substances that are added at the beginning of the kneader are conveyed in an axial direction towards the end of the mixer. The inventive method is characterized in that at least one of the following conditions is met: i) the filling level in the kneader mixer is at least 71 percent; ii) the water-soluble, monoethylenically unsaturated monomers contain up to 150 ppm of a semicyclic ether of a hydroquinone; iii) the temperature in the polymerization zone exceeds 65° C.; iv) the kneader has a remixing rate of less than 0.33.

    摘要翻译： 公开了通过共聚a）水溶性单烯属不饱和单体，b）0.001至5摩尔％的含有至少两个可聚合基团的单体，其相对于 单体（a），在混合器中。 在捏合机开始时添加的物质沿轴向方向输送到混合器的末端。 本发明的方法的特征在于满足以下条件中的至少一个：i）捏合机混合器中的填充水平为至少71％; ii）水溶性单烯属不饱和单体含有高达150ppm的氢醌的半环醚; iii）聚合区域的温度超过65℃。 iv）捏合机的再混合率小于0.33。

    Production of a Water-Absorbing Resin to Which a Particulate Additive is Admixed
    3.
    发明申请
    Production of a Water-Absorbing Resin to Which a Particulate Additive is Admixed 有权
    混合颗粒添加剂的吸水树脂的生产

    公开(公告)号：US20080306209A1

    公开(公告)日：2008-12-11

    申请号：US12158502

    申请日：2006-12-28

    申请人： Uwe Stueven ,  Rudiger Funk ,  Matthias Weismantel ,  Thomas Daniel ,  Annemarie Hillebrecht ,  Dominicus van Esbroeck ,  Karl J. Possemiers

    发明人： Uwe Stueven ,  Rudiger Funk ,  Matthias Weismantel ,  Thomas Daniel ,  Annemarie Hillebrecht ,  Dominicus van Esbroeck ,  Karl J. Possemiers

    IPC分类号： C08F2/44 ,  C08K3/32 ,  C08K5/04 ,  C08K3/34

    CPC分类号： C08F2/44 ,  C08F220/06 ,  C08F222/1006

    摘要： The invention relates to a process for producing a water-absorbing resin by polymerization of a reaction mixture comprising at least one hydrophilic monomer and, if appropriate, at least one crosslinker in a reactor, which comprises admixing the reaction mixture with at least one first portion of a particulate additive before the reaction mixture has reached a residence time of 40% of the overall residence time in the reactor and with at least one second portion of a particulate additive when the reaction mixture has reached a residence time of 45% or more of the overall residence time in the reactor, the additive being selected from water-absorbing resin powders, fillers and mixtures thereof, the total solids content of monomer and additive being in the range from 30% to 60% by weight, the amount of additive being in the range from 5% to 50% by weight, based on the monomers, and the weight ratio of the first portion to the second portion of the additive being in the range from 10:1 to 1:5. The resin powder is recycled fine-sized material for example. Not only the residual monomer content, specifically the residual crosslinker content, but also the level of extractables in the water-absorbing resin are reduced by the method of addition described. A high fraction of additives can be incorporated without the properties of the water-absorbing resin obtained being adversely affected. The additives enter a sufficiently firm bond with the resin, so that no excessive dusting occurs on exposure to mechanical stress.

    摘要翻译： 本发明涉及通过聚合包含至少一种亲水单体和如果合适的反应器中至少一种交联剂的反应混合物来生产吸水树脂的方法，其包括将反应混合物与至少一个第一部分 的反应混合物在反应混合物的停留时间达到总反应器停留时间的40％的停留时间和至少一个第二部分的颗粒状添加剂之前，当反应混合物达到45％或更多的停留时间时， 在反应器中的总停留时间，添加剂选自吸水树脂粉末，填料及其混合物，单体和添加剂的总固体含量在30重量％至60重量％的范围内，添加剂的量为 基于单体的5重量％至50重量％的范围，并且添加剂的第一部分与第二部分的重量比在10:1至 1：5。 树脂粉末是例如再循环的精细尺寸的材料。 通过所述的添加方法，不仅残留单体含量，特别是残留交联剂含量，而且吸水性树脂中的可萃取物的含量都降低。 可以并入高分数的添加剂，而不会对获得的吸水性树脂的性能产生不良影响。 添加剂与树脂进行足够牢固的粘合，使得在暴露于机械应力时不会发生过度的除尘。

    Method for Producing Water-Absorbing Polymers
    7.
    发明申请
    Method for Producing Water-Absorbing Polymers 有权
    吸水聚合物的制造方法

    公开(公告)号：US20080214750A1

    公开(公告)日：2008-09-04

    申请号：US11666962

    申请日：2005-11-16

    申请人： Uwe Stueven ,  Rudiger Funk ,  Friedrich-Georg Martin ,  Jurgen Schroder

    发明人： Uwe Stueven ,  Rudiger Funk ,  Friedrich-Georg Martin ,  Jurgen Schroder

    IPC分类号： C08F2/04 ,  C08F20/06

    CPC分类号： C08F2/04 ,  C08F220/06 ,  C08F220/40 ,  C08F222/1006

    摘要： The invention relates to processes for preparing water absorbing polymers by polymerization of a monomer solution comprising allyl acrylate and/or allyl alcohol, the solution comprising not more than 0.002% by weight of allyl acrylate and/or allyl alcohol, based on acrylic acid, to aqueous monomer solutions for producing water absorbing polymers, to water absorbing polymers, to processes for producing hygiene articles and also to hygiene articles.

    摘要翻译： 本发明涉及通过聚合包含丙烯酸烯丙酯和/或烯丙醇的单体溶液来制备吸水聚合物的方法，该溶液包含不超过0.002％（重量）丙烯酸烯丙酯和/或烯丙醇（基于丙烯酸）至 用于生产吸水聚合物的单体水溶液，吸水聚合物，生产卫生用品的方法以及卫生用品。

    Mixtures of polyalkoxylated trimethylolpropane (meth) acrylate
    9.
    发明申请
    Mixtures of polyalkoxylated trimethylolpropane (meth) acrylate 审中-公开
    聚烷氧基化三羟甲基丙烷（甲基）丙烯酸酯的混合物

    公开(公告)号：US20060212011A1

    公开(公告)日：2006-09-21

    申请号：US10551630

    申请日：2004-04-02

    申请人： Andreas Popp ,  Thomas Daniel ,  Jurgen Schroder ,  Thomas Jaworek ,  Rudiger Funk ,  Reinhold Schwalm ,  Matthias Weismantel

    发明人： Andreas Popp ,  Thomas Daniel ,  Jurgen Schroder ,  Thomas Jaworek ,  Rudiger Funk ,  Reinhold Schwalm ,  Matthias Weismantel

    IPC分类号： A61F13/15 ,  C07C69/52 ,  C08F265/02

    CPC分类号： C08F220/06 ,  A61L15/60 ,  C07C67/08 ,  C08F222/1006 ,  C08G65/2609 ,  C08G65/3322 ,  C07C69/54

    摘要： The present invention relates to novel mixtures of (meth)acrylic esters of polyalkoxylated trimethylolpropane of the formula where AO is for each AO independently at each instance EO, PO or BO where EO is O—CH2-CH2- PO is independently at each instance O—CH2-CH(CH3)- or O—CH(CH3)-CH2- BO is independently at each instance O—CH2-CH(CH2-CH3)- or O—CH(CH2-CH3)-CH2- p1+p2+p3 is 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74 or 75, R1, R2 and R3 are independently H or CH3, a simplified process for preparing these ester mixtures and the use of reaction mixtures thus obtainable.

    摘要翻译： 本发明涉及下式的聚烷氧基化三羟甲基丙烷的（甲基）丙烯酸酯的新混合物，其中AO在每种情况下各自独立地为每个AO，PO或BO，其中EO为O-CH 2 -CH 2 - ，PO各自独立地为O -CH 2 -CH（CH 3） - 或O-CH（CH 3）-CH 2 - BO在每种情况下独立地为O-CH 2 -CH（CH 2 -CH 3） - 或O-CH（CH 2 -CH 3）-CH 2 - + p3为28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51 ，52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74或75，R1 ，R2和R3独立地为H或CH3，制备这些酯混合物的简化方法以及由此获得的反应混合物的使用。