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    Absorbent polymers, manufacturing process and their use in particular for sanitary articles
    1.
    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

    申请人： Paul Mallo ,  Fritz Engelhardt ,  Ulrich Riegel ,  Rudiger Funk

    发明人： Paul Mallo ,  Fritz Engelhardt ,  Ulrich Riegel ,  Rudiger Funk

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

    CPC分类号： C08F20/06 ,  A61L15/18 ,  A61L15/60

    摘要： 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.

    摘要翻译： 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。

    Water-swellable hydrophilic polymers
    2.
    发明授权
    Water-swellable hydrophilic polymers 失效
    水溶胀性亲水聚合物

    公开(公告)号：US5684104A

    公开(公告)日：1997-11-04

    申请号：US687005

    申请日：1996-07-18

    申请人： Rudiger Funk ,  Fritz Engelhardt ,  Ulrich Riegel ,  Michael Wessling

    发明人： Rudiger Funk ,  Fritz Engelhardt ,  Ulrich Riegel ,  Michael Wessling

    IPC分类号： A61L15/24 ,  A61L15/60 ,  C08F4/04 ,  C08F4/32 ,  C08F4/36 ,  C08F20/04 ,  C08F251/00 ,  C08F283/06 ,  C08F20/58

    CPC分类号： C08F283/06 ,  A61L15/24 ,  A61L15/60 ,  C08F20/04 ,  C08F251/00 ,  C08F4/36

    摘要： Method for avoiding network defects due to unwanted secondary reactions during the polymerization in water-swellable hydrophilic polymers which contain polymers prepared by free radical (co)polymerization of one or more hydrophilic monomers of the formula I ##STR1## wherein R.sup.1 is hydrogen, methyl or ethyl, R.sup.2 is the group --COOR.sup.4, the sulphonyl group, the phosphonyl group, the phosphonyl group-esterified by (C.sub.1 -C.sub.4)-alkanol or a group of the formula ##STR2## R.sup.3 is hydrogen, methyl, ethyl or the carboxyl group, R.sup.4 is hydrogen, amino or hydroxy-(C.sub.1 -C.sub.4)-alkyl and R.sup.5 is the sulphonyl group, the phosphonyl group or the carboxyl group, or grafting (co)polymerization of one or more hydrophilic monomers of the formula I onto a grafting base, using a free radical initiator which forms three or more free radical sites per molecule.

    摘要翻译： 在水溶胀性亲水性聚合物中避免由于在聚合期间不期望的二次反应引起的网络缺陷的方法，其含有通过一种或多种式I的亲水性单体的自由基（共）聚合制备的聚合物，其中R 1是氢，甲基或 乙基，R 2为-COOR 4基团，磺酰基，膦酰基，被（C 1 -C 4） - 烷醇酯化的膦酰基或下式的基团是氢，甲基，乙基或羧基 ，R4是氢，氨基或羟基 - （C1-C4） - 烷基，R5是磺酰基，膦酰基或羧基，或一种或多种式I的亲水性单体接枝（共）聚合到接枝上 碱，使用每分子形成三个或更多个自由基位点的自由基引发剂。

    Water-swellable hydrophilic polymers
    5.
    发明授权
    Water-swellable hydrophilic polymers 失效
    水溶胀性亲水聚合物

    公开(公告)号：US5594083A

    公开(公告)日：1997-01-14

    申请号：US408534

    申请日：1995-03-22

    申请人： R udiger Funk ,  Fritz Engelhardt ,  Ulrich Riegel ,  Michael Wessling

    发明人： R udiger Funk ,  Fritz Engelhardt ,  Ulrich Riegel ,  Michael Wessling

    IPC分类号： A61L15/24 ,  A61L15/60 ,  C08F4/04 ,  C08F4/32 ,  C08F4/36 ,  C08F20/04 ,  C08F251/00 ,  C08F283/06 ,  C08F20/58

    CPC分类号： C08F283/06 ,  A61L15/24 ,  A61L15/60 ,  C08F20/04 ,  C08F251/00 ,  C08F4/36

    摘要： Water-swellable hydrophilic polymers which contain polymers prepared by free radical (co)polymerization of one or more hydrophilic monomers of the formula I ##STR1## wherein R.sup.1 is hydrogen, methyl or ethyl,R.sup.2 is the group --COOR.sup.4, the sulphonyl group, the phosphonyl group, the phosphonyl group esterified by (C.sub.1 -C.sub.4)-alkanol or a group of the formula ##STR2## R.sup.3 is hydrogen, methyl, ethyl or the carboxyl group, R.sup.4 is hydrogen, amino or hydroxy-(C.sub.1 -C.sub.4)-alkyl andR.sup.5 is the sulphonyl group, the phosphonyl group or the carboxyl group, or grafting (co)polymerization of one or more hydrophilic monomers of the formula I onto a grafting base, using a free radical initiator which forms three or more free radical sites per molecule.

    摘要翻译： 水溶胀性亲水性聚合物，其含有通过一种或多种式I的亲水性单体（I）的自由基（共）聚合制备的聚合物，其中R 1是氢，甲基或乙基，R 2是基团-COOR 4，磺酰基 （C 1 -C 4） - 烷醇酯化的膦酰基或式（R 3）的基团是氢，甲基，乙基或羧基，R 4是氢，氨基或羟基 - （C 1 -C 4） C4） - 烷基，R5是磺酰基，膦酰基或羧基，或者将一种或多种式I的亲水性单体接枝（共）聚合到接枝基上，使用形成三个或更多个的自由基引发剂 每个分子的自由基位点。

    Process for crosslinking hydrogels with bis- and poly-2- oxazolidinones
    8.
    发明授权
    Process for crosslinking hydrogels with bis- and poly-2- oxazolidinones 有权
    用双 - 和多 - 2-恶唑烷酮交联水凝胶的方法

    公开(公告)号：US06472478B1

    公开(公告)日：2002-10-29

    申请号：US09601349

    申请日：2000-08-18

    申请人： Rüdiger Funk ,  Volker Frenz ,  Ulrich Riegel ,  Matthias Weismantel ,  Fritz Engelhardt ,  Thomas Daniel

    发明人： Rüdiger Funk ,  Volker Frenz ,  Ulrich Riegel ,  Matthias Weismantel ,  Fritz Engelhardt ,  Thomas Daniel

    IPC分类号： C08F830

    CPC分类号： A61L15/60 ,  C08F8/30 ,  Y10S524/916 ,  Y10T442/699

    摘要： The invention relates to a process for the gel or surface postcrosslinking of water-absorbing polymers in which the polymers are treated with a surface postcrosslinking solution and during or after the treatment are postcrosslinked and dried by means of an increase in temperature, the crosslinker being a compound of the formula in which R1 and R2 independently of one another are H, hydroxyl, phenyl or C1-C6-alkyl, R3 is hydrogen, C1-C12-alkyl, C1-C12-alkenyl or C6-C12-aryl and R4 and R5 independently of one another are C1-C12-alkyl, C1-C12-alkenyl, C6-C12-aryl, hydroxyl, C1-C12-alkoxy or hydrogen, dissolved in an inert solvent, to water-absorbing polymers which can be obtained by said process, and to their use in hygiene articles, packaging materials and nonwovens.

    摘要翻译： 本发明涉及一种吸水聚合物的凝胶或表面后交联方法，其中聚合物用表面后交联溶液处理，并且在处理之间或之后，通过温度升高进行后交联和干燥，交联剂为 R 1和R 2彼此独立地是H，羟基，苯基或C 1 -C 6烷基的化合物，R 3是氢，C 1 -C 12 - 烷基，C 1 -C 12 - 烯基或C 6 -C 12 - 芳基，R 4和R 5 彼此独立地是溶解在惰性溶剂中的C 1 -C 12烷基，C 1 -C 12 - 烯基，C 6 -C 12 - 芳基，羟基，C 1 -C 12 - 烷氧基或氢，可以通过所述 过程，以及它们在卫生用品，包装材料和无纺布中的应用。

    Method for the secondary cross-linking of hydrogels with N-acyl-2-oxazolidinones
    9.
    发明授权
    Method for the secondary cross-linking of hydrogels with N-acyl-2-oxazolidinones 失效
    水凝胶与N-酰基-2-恶唑烷酮二次交联的方法

    公开(公告)号：US06559239B1

    公开(公告)日：2003-05-06

    申请号：US09831920

    申请日：2001-05-29

    申请人： Ulrich Riegel ,  Matthias Weismantel ,  Volker Frenz ,  Thomas Daniel ,  Fritz Engelhardt

    发明人： Ulrich Riegel ,  Matthias Weismantel ,  Volker Frenz ,  Thomas Daniel ,  Fritz Engelhardt

    IPC分类号： C08F830

    CPC分类号： C08F8/30 ,  C08J3/245 ,  C08J2300/14 ,  C08J2333/02 ,  C08F220/06

    摘要： Liquid-absorbent polymers are prepared by a process for the gel and/or surface postcrosslinking of water-absorbent polymers by the polymer being treated with a surface postcrosslinking solution and being postcrosslinked and dried during and after the treatment by raising the temperature, wherein the surface postcrosslinking solution comprises as crosslinker a compound of the formula I where R1, R2, R3 and R4 are independently hydrogen, C1-C12-alkyl, C1-C12-alkenyl, C6-C12-aryl or C1-C12-alkoxy, R5 is C1-C16-alkyl, C1-C4-hydroxyalkyl, C6-C12-aryl, C1-C16-alkenyl or a group of the formula —(CH2)n—COOH or —(CH2)n—SO3H in the form of the acid or a respective metal salt, ammonium salt or triethanolammonium salt thereof or —(CH2—CH2—O—)m—R6, R6 is hydrogen or C1-C16-alkyl, n is from 1 to 10, m is from 1 to 20 dissolved in an inert solvent, and are used in hygiene articles, packaging materials and nonwovens.

    摘要翻译： 通过用表面后交联溶液处理的聚合物进行凝胶和/或表面后吸附吸水性聚合物的方法制备液体吸收聚合物，并且在处理之间和之后通过升高温度进行后交联和干燥，其中表面 后交联溶液包含作为交联剂的式I化合物，其中R 1，R 2，R 3和R 4独立地是氢，C 1 -C 12 - 烷基，C 1 -C 12 - 烯基，C 6 -C 12 - 芳基或C 1 -C 12 - 烷氧基，R 5是C 1 -C 16 - 烷基，C 1 -C 4 - 羟基烷基，C 6 -C 12 - 芳基，C 1 -C 16 - 烯基或式 - （CH 2）n -COOH或 - （CH 2）n -SO 3 H的基团，其形式为酸或相应的 金属盐，铵盐或三乙醇铵盐或 - （CH 2 -CH 2 -O-）m -R 6，R 6是氢或C 1 -C 16 - 烷基，n为1至10，m为1至20，溶于惰性溶剂 ，用于卫生用品，包装材料和无纺布。