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    Postcrosslinking of Water-Absorbing Polymers
    93.
    发明申请
    Postcrosslinking of Water-Absorbing Polymers 有权
    吸水聚合物的后交联

    公开(公告)号：US20110257341A1

    公开(公告)日：2011-10-20

    申请号：US13171107

    申请日：2011-06-28

    Applicant: Ulrich Riegel ,  Thomas Daniel ,  Matthias Weismantel ,  Mark Elliott ,  Dieter Hermeling

    Inventor： Ulrich Riegel ,  Thomas Daniel ,  Matthias Weismantel ,  Mark Elliott ,  Dieter Hermeling

    IPC: C08F8/00

    CPC classification number: C08J3/245 ,  C08F220/06 ,  C08J2300/14

    Abstract: The invention concerns a process for producing water-absorbing polymer, which comprises a base polymer A being mixed with a first aqueous solution B of at least one surface postcrosslinker and a second aqueous solution C of at least one polyvalent cation and thermally treated, wherein said base polymer A is based on at least 50% neutralized acid-functional monomer and said solutions B and C are metered wholly or partly concurrently through separate nozzles whereby a water-absorbing polymer having a high saline flow conductivity value is obtained.

    Abstract translation: 本发明涉及一种生产吸水聚合物的方法，其包括将基础聚合物A与至少一个表面后交联剂的第一水溶液B和至少一种多价阳离子的第二水溶液C混合并进行热处理，其中所述 基础聚合物A基于至少50％中和的酸官能单体，并且所述溶液B和C通过单独的喷嘴全部或部分同时计量，从而获得具有高盐水流动电导率值的吸水聚合物。

    Method for Producing Superabsorbers with a Low Residual Monomer Content
    96.
    发明申请
    Method for Producing Superabsorbers with a Low Residual Monomer Content 有权
    制备低残留单体含量的超吸收体的方法

    公开(公告)号：US20110136986A1

    公开(公告)日：2011-06-09

    申请号：US13058235

    申请日：2009-08-10

    Applicant: Mark Elliott ,  Thomas Daniel

    Inventor： Mark Elliott ,  Thomas Daniel

    IPC: C08F120/06

    CPC classification number: C08F2/00 ,  A61L15/60 ,  C08L101/14

    Abstract: To prepare superabsorbents with a low residual monomer content, a salt of urea with an inorganic acid is added to the monomer mixture before or during the polymerization or to the polymer after the polymerization but before a heat treatment which follows the polymerization.

    Abstract translation: 为了制备具有低残留单体含量的超吸收剂，在聚合之前或聚合期间将尿素与无机酸的盐加入到单体混合物中，或在聚合之后加入到聚合物之后，但在聚合之后的热处理之前。

    COLOR STABLE SUPERABSORBENT
    97.
    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

    Applicant: Ulrich Riegel ,  Thomas Daniel ,  Norbert Herfert ,  Mark Elliott

    Inventor： Ulrich Riegel ,  Thomas Daniel ,  Norbert Herfert ,  Mark Elliott

    IPC: B01J20/22 ,  C07C313/02

    CPC classification number: A61L15/60 ,  A61L15/42 ,  C08J3/075 ,  C08J2300/14 ,  C08L101/14

    Abstract: 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.

    Abstract translation: 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。

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