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    Postcrosslinking of water-absorbing polymers
    124.
    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：US20070161759A1

    公开(公告)日：2007-07-12

    申请号：US10588671

    申请日：2005-02-18

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

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

    IPC: C08F8/32

    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 the secondary crosslinking of hydrogels with bicyclic amide acetals
    127.
    发明申请
    Method for the secondary crosslinking of hydrogels with bicyclic amide acetals 失效
    水凝胶与双环酰胺缩醛二次交联的方法

    公开(公告)号：US20060211828A1

    公开(公告)日：2006-09-21

    申请号：US10565050

    申请日：2004-07-07

    Applicant: Thomas Daniel ,  Ulrich Riegel ,  Mark Elliott ,  Ubbo Oehsen ,  Kai Exner ,  Klemens Massonne

    Inventor： Thomas Daniel ,  Ulrich Riegel ,  Mark Elliott ,  Ubbo Oehsen ,  Kai Exner ,  Klemens Massonne

    IPC: C08F120/10

    CPC classification number: C08J3/245 ,  C08F8/30 ,  C08J2300/14 ,  Y10S493/96 ,  C08F20/00

    Abstract: A process for postcrosslinking a water-absorbing polymer comprises said polymer being treated with a postcrosslinker and, during or after said treating, being postcrosslinked and dried by temperature elevation, said postcrosslinker being a compound of the formula I where R1, R2, R3, R4, R5, R6, R7, R8 and R9 are each independently hydrogen, C1-C12-alkyl, C2-C12-alkenyl or C6-C12-aryl, wherein C1-C12-alkyl, C2-C12-alkenyl or C6-C12-aryl may be halogen substituted. The liquid-absorbing polymers are useful in hygiene articles and packaging materials.

    Abstract translation: 用于后吸附聚合物的方法包括用后交联剂处理的所述聚合物，并且在所述处理期间或之后，通过升温后交联并干燥，所述后交联剂是式I的化合物，其中R 1， R 2，R 2，R 3，R 4，R 5，R 6， R S，R 7，R 8和R 9各自独立地为氢，C 1 -C 3 C 12 -C 12 - 烷基，C 2 -C 12 - 烯基或C 6 -C 12 - - 芳基，其中C 1 -C 12 - 烷基，C 2 -C 12 - 烯基或C 1 -C 12 - C 6 -C 12 - 芳基可以是卤素取代的。 液体吸收聚合物可用于卫生制品和包装材料。

    Method for continuously producing cross-linked fine-particle geleous polymerizates
    130.
    发明授权
    Method for continuously producing cross-linked fine-particle geleous polymerizates 有权
    连续生产交联微粒胶体聚合物的方法

    公开(公告)号：US06710141B1

    公开(公告)日：2004-03-23

    申请号：US10111428

    申请日：2002-05-08

    Applicant: Wilfried Heide ,  Stefan Wickel ,  Thomas Daniel ,  Joachim Nilges ,  Jürgen Hofmann

    Inventor： Wilfried Heide ,  Stefan Wickel ,  Thomas Daniel ,  Joachim Nilges ,  Jürgen Hofmann

    IPC: C08F210

    CPC classification number: C08F2/01 ,  B01J14/00 ,  B01J19/0013 ,  B01J19/20 ,  B01J2219/00033 ,  B01J2219/00063 ,  B01J2219/00085 ,  B01J2219/00094 ,  B01J2219/00123 ,  B01J2219/00128 ,  B01J2219/00162 ,  B01J2219/00166 ,  C08F2/10

    Abstract: A process for continuous production of crosslinked fine particles of polymer gel by copolymerizing a) water-soluble monoethylenically unsaturated monomers, b) from 0.001 to 5 mol % based on the monomers (a) of monomers containing at least two ethylenically unsaturated double bonds, and c) from 0 to 20 mol % based on the monomers (a) of water-insoluble monoethylenically unsaturated monomers in from 20 to 80% by weight aqueous solution in the presence of an initiator at from 0 to 140° C. by feeding the aqueous solution of the monomers together with the initiator and an inert gas continuously into a mixing kneader having at least two axially parallel rotating shafts equipped with a plurality of kneading and transporting elements which convey the substances introduced at the upstream end of the mixing kneader in the axial direction toward the downstream end of the mixer, comprises the fraction of heat being removed by evaporation of water from the reaction mixture being not less than 5% of the heat of reaction and the fraction of heat being removed by product discharge being not less than 25% of the heat of reaction and the rest of the heat being removed via cooling of the reactor walls.

    Abstract translation: 一种通过共聚a）水溶性单烯属不饱和单体，b）相对于含有至少两个烯键式不饱和双键的单体（a）为0.001〜5摩尔％的连续制造交联微粒的方法，以及 c）0至20摩尔％，基于单体（a）的水不溶性单烯属不饱和单体，在20至80重量％的水溶液中，在0-140℃的引发剂存在下，通过加入水 将单体与引发剂和惰性气体的溶液连续混合到具有至少两个轴向平行的旋转轴的混合捏合机中，所述两个轴向平行的旋转轴装备有多个捏合和输送元件，其将在混合捏合机的上游端引入的物质沿轴向 朝向混合器下游端的方向包括通过蒸发反应混合物中的水而除去的热分数不小于5％ 反应热和通过产物排放除去的热分数不低于反应热的25％，剩余的热量通过反应器壁的冷却除去。

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