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    Absorbent polymers, manufacturing process and their use in particular for sanitary articles
    13.
    发明授权
    Absorbent polymers, manufacturing process and their use in particular for sanitary articles 失效
    吸收性聚合物，制造工艺及其特别用于卫生用品的用途

    公开(公告)号：US5258448A

    公开(公告)日：1993-11-02

    申请号：US957006

    申请日：1992-10-06

    Applicant: Paul Mallo ,  Fritz Engelhardt ,  Ulrich Riegel ,  Rudiger Funk

    Inventor： Paul Mallo ,  Fritz Engelhardt ,  Ulrich Riegel ,  Rudiger Funk

    IPC: A61F13/53 ,  A61L15/18 ,  A61L15/60 ,  C08F2/32 ,  C08F6/06 ,  C08F6/24 ,  C08F8/00 ,  C08F20/04 ,  C08F20/06 ,  C08F120/04

    CPC classification number: C08F20/06 ,  A61L15/18 ,  A61L15/60

    Abstract: Hydrophobic, cross-linked absorbent polymers, insoluble in water, in the form of microbeads , based on silica and acrylic acid partially salified by an alkali metal, are obtained by a polymerization process in a water-in-oil suspension in which an aqueous phase obtained extemporaneously from (1), an aqueous solution containing one or more hydrosoluble polymerization initiators, which are free radical generators, and (2), an aqueous phase containing at a concentration of 50.+-.15% by weight a mixture of by weight 2 to 25% of colloidal silica and 98 to 75% of acrylic acid of which 60 to 80 is salified by an alkaline metal, is introduced slowly, under agitation, into a totally deoxygenated oil phase maintained at boiling point and containing a protective colloid, with an aqueous phase to oil phase weight ratio of between 0.8 and 1.2, then when the polymerization reaction is finished, 15 to 55% of the water present is eliminated by azeotropic distillation with recycling of the organic solvent, then 0.01 to 0.06% in molar proportions relative to the monomers of ethyleneglycol diglycidyl ether is introduced into the reaction mixture at boiling point and azeotropic distillation of the residual water is continued until a suspension is obtained which has a dry content of 85.+-.10% and finally the desired polymer is isolated by filtration; use as absorbent compound and in a sanitary article.

    Abstract translation: 通过在油包水悬浮液中的聚合方法获得以碱金属部分盐化的基于二氧化硅和丙烯酸的微珠形式的不溶于水的疏水性交联吸收性聚合物，其中水相 从（1）中得到的含有一种或多种作为自由基发生剂的水溶性聚合引发剂的水溶液，和（2）含有浓度为50 +/- 15重量％的混合物的水相， 在搅拌下将2〜25％的胶体二氧化硅和98〜75％的丙烯酸（其中60〜80）用碱金属盐化，缓慢加入到保持在沸点并含有保护胶体的完全脱氧油相中， 水相 - 油相重量比在0.8和1.2之间，然后当聚合反应完成时，通过共沸蒸馏除去存在的15-55％的水，并回收有机溶液 nt，然后相对于乙二醇二缩水甘油醚单体的摩尔比例为0.01至0.06％，在沸点下引入该反应混合物，继续共沸蒸馏残余水直至获得干燥含量为85 + / -10％，最后通过过滤分离所需的聚合物; 用作吸收剂化合物和卫生制品。

    Method for the Continuous Production of Crosslinked Particulate Gel-Type Polymers
    14.
    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

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

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

    IPC: C08F2/01

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

    Abstract: 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.

    Abstract translation: 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。

    Mixtures of polyalkoxylated trimethylolpropane (meth) acrylate
    15.
    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

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

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

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

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

    Abstract: 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.

    Abstract translation: 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。

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