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    Low-dusting pulverulent hydrophilic polymers
    4.
    发明授权
    Low-dusting pulverulent hydrophilic polymers 失效
    低粉尘型亲水聚合物

    公开(公告)号：US5681878A

    公开(公告)日：1997-10-28

    申请号：US424658

    申请日：1995-04-19

    申请人： Helmut Klotzsche ,  Gustav Remmel ,  Ulrich Riegel ,  Uwe Stuven

    发明人： Helmut Klotzsche ,  Gustav Remmel ,  Ulrich Riegel ,  Uwe Stuven

    IPC分类号： A61L15/26 ,  A61L15/60 ,  B01J20/26 ,  B01J20/32 ,  C08J3/12 ,  C08K5/24

    CPC分类号： C08J3/12 ,  A61L15/26 ,  A61L15/60 ,  B01J20/26 ,  C08J2300/14

    摘要： The present invention relates to pulverulent water-swellable hydrophilic (co)polymers which comprise, for reducing dusting, auxiliaries from the series consisting of silicones and/or other auxiliaries, the latter in a total amount of less than 1% by weight, for example polyglycols or polyglycol ethers, the vapor pressure of the individual auxiliaries being not more than 0.1 mbar at 20.degree. C. and their melting point being not more than 100.degree. C., processes for their preparation and their use for absorption of water and aqueous solutions.

    摘要翻译： 本发明涉及粉末状水溶胀性亲水（共）聚合物，其包含用于减少由含硅和/或其它助剂组成的系列的助剂，后者的总量小于1重量％，例如 聚乙二醇或聚乙二醇醚，各辅助剂的蒸气压在20℃下不超过0.1毫巴，其熔点不超过100℃，其制备方法及其用于吸收水和水溶液的用途 。

    Hydrogels absorbing aqueous fluids
    5.
    发明授权
    Hydrogels absorbing aqueous fluids 有权
    吸水剂的水凝胶

    公开(公告)号：US08552071B1

    公开(公告)日：2013-10-08

    申请号：US09831915

    申请日：1999-11-18

    申请人： Thomas Daniel ,  Ulrich Riegel ,  Matthias Weismantel ,  Norbert Herfert ,  Friedrich Engelhardt

    发明人： Thomas Daniel ,  Ulrich Riegel ,  Matthias Weismantel ,  Norbert Herfert ,  Friedrich Engelhardt

    IPC分类号： A61L15/60 ,  C08L33/02 ,  C08F20/04 ,  C08F2/44 ,  C08K3/34 ,  C08K3/36 ,  A61F13/53 ,  A61F13/15 ,  A61F13/49 ,  A61F5/44

    CPC分类号： C08F20/04 ,  A61L15/18 ,  A61L15/60 ,  C08K3/34

    摘要： The invention relates to hydrogels capable of absorbing aqueous fluids, which hydrogels are produced by polymerization of olefinically unsaturated carboxylic acids or their derivatives. The hydrogels are characterized in that before, during or after the polymerization reaction and before drying a silicic acid alkali salt of the general formula (I) M2O×nSiO2 is added to the polymerization reaction mixture. In said formula M is an alkali metal and n is a number between 0.5 and 4. The hydrogel obtained in this way is then dried at an elevated temperature. The invention also relates to a method for producing said hydrogels and to their use for absorbing aqueous fluids.

    摘要翻译： 本发明涉及能够吸收含水流体的水凝胶，该水凝胶是通过烯属不饱和羧酸或其衍生物的聚合制备的。 水凝胶的特征在于，在聚合反应之前，之中或之后，在干燥之前，将通式（I）的M 2 O x nSiO 2的硅酸碱金属盐加入到聚合反应混合物中。 在所述式中，M是碱金属，n是0.5-4之间的数。然后在升高的温度下将这样得到的水凝胶干燥。 本发明还涉及一种生产所述水凝胶的方法及其用于吸收含水流体的用途。

    COLOR STABLE SUPERABSORBENT
    6.
    发明申请
    COLOR STABLE SUPERABSORBENT 审中-公开
    颜色稳定超级

    公开(公告)号：US20110118114A1

    公开(公告)日：2011-05-19

    申请号：US13054287

    申请日：2009-07-29

    申请人： Ulrich Riegel ,  Thomas Daniel ,  Norbert Herfert ,  Mark Elliott

    发明人： Ulrich Riegel ,  Thomas Daniel ,  Norbert Herfert ,  Mark Elliott

    IPC分类号： B01J20/22 ,  C07C313/02

    CPC分类号： A61L15/60 ,  A61L15/42 ,  C08J3/075 ,  C08J2300/14 ,  C08L101/14

    摘要： Superabsorbents comprising a compound of the formula (I) in which M is a hydrogen atom, an ammonium ion, a monovalent metal ion or one equivalent of a divalent metal ion of groups 1, 2, 8, 9, 10, 12 or 14 of the periodic table of the elements; R1 is OH or NR4R5 where R4 and R5 are each independently H or C1-C6-alkyl; R2 is H or an alkyl, alkenyl, cycloalkyl or aryl group, where this group optionally has 1, 2 or 3 substituents which are each independently selected from C1-C6-alkyl, OH, O—C1-C6-alkyl, halogen and CF3; and R3 is COOM, SO3M, COR4, CONR4R5 or COOR4, where M, R4 and R5 are each as defined above or, when R2 is aryl which is optionally substituted as specified above, are also H, salts thereof or mixtures of such compounds and/or salts thereof, exhibit improved stability to discoloration in the course of storage under elevated temperatures and/or elevated air humidity.

    摘要翻译： 超吸收剂，其包含式（I）的化合物，其中M为氢原子，铵离子，一价金属离子或1当量的第1,2,8,9,10,12或14族的二价金属离子 元素周期表; R1是OH或NR4R5，其中R4和R5各自独立地是H或C1-C6-烷基; R2是H或烷基，烯基，环烷基或芳基，其中该基团任选具有1,2或3个各自独立地选自C 1 -C 6烷基，OH，O-C 1 -C 6 - 烷基，卤素和CF 3的取代基 ; 并且R 3是COOM，SO 3 M，COR 4，CONR 4 R 5或COOR 4，其中M，R 4和R 5各自如上所定义，或当R 2是如上所述任选被取代的芳基时，也是H，其盐或这些化合物的混合物和 /或其盐在升高的温度和/或升高的空气湿度下在储存过程中表现出改善的变色稳定性。

    Process for crosslinking hydrogels with bis- and poly-2- oxazolidinones
    7.
    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
    8.
    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。

    Method for the secondary cross-linking of hydrogels with 2-oxotetrahydro-1,3-oxazines
    9.
    发明授权
    Method for the secondary cross-linking of hydrogels with 2-oxotetrahydro-1,3-oxazines 有权
    水凝胶与2-氧代四氢-1,3-恶嗪二次交联的方法

    公开(公告)号：US06657015B1

    公开(公告)日：2003-12-02

    申请号：US09831382

    申请日：2001-05-17

    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 crosslinker comprises a compound of the formula I where R1 is hydrogen, C1-C4-alkyl, C1-C4-hydroxyalkyl, trialkylsilyl or acetyl and R2, R2′, R3, R3′, R4, R4′ are each independently hydrogen, C1-C12-alkyl, C2-C12-alkenyl or C6-C12-aryl, 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对吸水性聚合物进行凝胶和/或表面后交联的方法制备液体吸收性聚合物，并且在处理期间和之后通过升高温度进行后交联和干燥，其中交联剂 包括其中R 1为氢，C 1 -C 4 - 烷基，C 1 -C 4 - 羟基烷基，三烷基甲硅烷基或乙酰基且R 2，R 2'，R 3，R 3'的式I化合物， >，R 4，R 4'各自独立地为氢，C 1 -C 12 - 烷基，C 2 -C 12 - 烯基或C 6 -C 12 - 芳基，溶于惰性溶剂中，并用于卫生用品，包装材料 和无纺布。

    Method for cross-linking hydrogels with bis- and poly-2-oxazolidinones
    10.
    发明授权
    Method for cross-linking hydrogels with bis- and poly-2-oxazolidinones 失效
    用双 - 和多 - 2-恶唑烷酮交联水凝胶的方法

    公开(公告)号：US06503979B1

    公开(公告)日：2003-01-07

    申请号：US09622853

    申请日：2000-08-28

    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： C08J3/245 ,  A61L15/60 ,  C08F8/30 ,  C08G73/06 ,  C08J2300/14 ,  Y10S524/916

    摘要： The invention contains a process for the 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 by means of an increase in temperature and are dried, wherein the crossiinker comprises a bis-2-oxazolidinone or a poly-2-oxazolidinone comprising structural units of the formula in which R1 is branched or unbranched C1-C18-alkylene, branched or unbranched C2-C18-alkenylene, C5-C18-cycloalkylene, phenylene, naphthylene, anthracenylene, hydrocarbon-substituted phenylene, naphthylene or anthracenylene or another substituted or unsubstituted C6-C18-arylene radical, R2 is branched or unbranched C1-C18-alkylene and n is an integer from 1 to 50 or a mixture of bis-2-oxazolidinones and poly-2-oxazolidinones dissolved in an inert solvent.

    摘要翻译： 本发明包含用于表面后吸附聚合物的方法，其中聚合物用表面后交联溶液处理，并且在处理期间或之后通过温度升高进行后交联并干燥，其中交联剂包含双 -2-恶唑烷酮或包含结构单元的聚-2-恶唑烷酮，其中R1是支链或非支链C1-C18-亚烷基，支链或非支链C2-C18-亚烯基，C5-C18-亚环烷基，亚苯基，亚萘基，蒽亚基， 烃取代的亚苯基，亚萘基或亚蒽基或其它取代或未取代的C 6 -C 18亚芳基，R 2是支链或非支链的C 1 -C 18 - 亚烷基，n是1至50的整数或双-2-恶唑烷酮和聚 -2-恶唑烷酮溶解在惰性溶剂中。