Color-Stable Superabsorber
    22.
    发明申请
    Color-Stable Superabsorber 有权
    色稳超吸收器

    公开(公告)号:US20120178621A1

    公开(公告)日:2012-07-12

    申请号:US13395051

    申请日:2010-09-14

    CPC classification number: C08K5/098 A61L2400/10 C08K5/0025 C08K5/005 C08L33/02

    Abstract: A superabsorbent produced by polymerizing a monomer mixture which comprises at least one ethylenically unsaturated monomer bearing at least one acid group, at least 0.1% by weight and at most 20% by weight, based on the total amount of ethylenically unsaturated monomers bearing at least one acid group (calculated as the free acid), of at least one alkaline earth metal salt (calculated without water of crystallization) selected from the salts of calcium, strontium or barium having been added before or during the polymerization and/or, if the polymerization is followed by a separate drying step, to the polymer before the drying, exhibits improved stability to discoloration in the course of storage under elevated temperatures and/or elevated air humidity.

    Abstract translation: 通过聚合单体混合物而制备的超吸收剂,其包含至少一种具有至少一个酸基团的烯键式不饱和单体,至少0.1重量%至多20重量%,基于具有至少一个 酸性基团(以游离酸计算)至少一种选自在聚合之前或聚合过程中加入的钙,锶或钡盐的碱土金属盐(不结晶水计算)和/或如果聚合 然后在干燥之前对聚合物进行单独的干燥步骤,在高温和/或高空气湿度下储存过程中显示改善的变色稳定性。

    Water-Absorbing Polymeric Particles and Method for the Production Thereof
    24.
    发明申请
    Water-Absorbing Polymeric Particles and Method for the Production Thereof 审中-公开
    吸水聚合物颗粒及其制备方法

    公开(公告)号:US20100190932A1

    公开(公告)日:2010-07-29

    申请号:US12668948

    申请日:2008-07-21

    CPC classification number: A61L15/60

    Abstract: The present invention relates to a water absorbing material obtainable by a process comprising the steps of bringing particles of a non surface-crosslinked water-absorbing polymer in contact with a) at least one post-crosslinker, b) 0.1-1.0 wt. % of at least one water-insoluble metal phosphate, based on the non surface-crosslinked water-absorbing polymer, and at least one further ingredient selected from c) at least one Nitrogen-containing water-soluble polymer of which the Nitrogen can be protonated, and d) at least one hydrophobic polymer and heat-treating the particles thus obtained at a temperature in the range from 120° C. to 300° C. and a method for the production thereof.

    Abstract translation: 本发明涉及一种吸水材料,该方法包括以下步骤:使非表面交联的吸水聚合物的颗粒与a)至少一种后交联剂接触,b)0.1-1.0wt。 至少一种不溶于水的金属磷酸盐,基于非表面交联的吸水聚合物,以及至少一种其它成分,选自c)至少一种含氮的水溶性聚合物,其中氮可被质子化 ,和d)至少一种疏水性聚合物,并在120℃至300℃的温度范围内对由此获得的颗粒进行热处理及其制备方法。

    Water-Absorbing Polymeric Particles and Method for the Production Thereof
    25.
    发明申请
    Water-Absorbing Polymeric Particles and Method for the Production Thereof 有权
    吸水聚合物颗粒及其制备方法

    公开(公告)号:US20100184594A1

    公开(公告)日:2010-07-22

    申请号:US12668183

    申请日:2008-07-21

    CPC classification number: A61L15/60 A61L15/42 A61L15/58

    Abstract: The present invention relates to a water absorbing material obtainable by a process comprising the steps of bringing particles of a non surface-crosslinked water-absorbing polymer in contact with a) at least one postcrosslinker, b) 10-1000 ppm, based on the non surface-crosslinked water-absorbing polymer, of at least one Nitrogen-containing water-soluble polymer of which the Nitrogen can be protonated, and c) at least one hydrophobic polymer and heat-treating the particles thus obtained at a temperature in the range from 120° C. to 300° C. and a method for the production thereof.

    Abstract translation: 本发明涉及一种吸水材料,该方法包括以下步骤:使非表面交联的吸水聚合物的颗粒与a)至少一个后交联剂接触,b)10-1000ppm,基于非 - 表面交联的吸水聚合物,其至少一种含氮的水溶性聚合物,其中氮可以被质子化,和c)至少一种疏水性聚合物,并且在如下得到的温度下热处理由此获得的颗粒: 120℃〜300℃及其制造方法。

    Process for Production of a Water-Absorbing Material
    26.
    发明申请
    Process for Production of a Water-Absorbing Material 审中-公开
    吸水材料的制造方法

    公开(公告)号:US20090012486A1

    公开(公告)日:2009-01-08

    申请号:US12159298

    申请日:2006-12-19

    CPC classification number: A61L15/60 A61F2013/530481

    Abstract: The present invention relates to a process for producing a water-absorbing material comprising the step of spray-coating water-absorbing polymeric particles with at least one non-reactive coating agent in a continuous process in a fluidized bed reactor in the range from 0° C. to 150° C., with the proviso that the non-reactive coating agents do not comprise an elastic film-forming polymer, the water-absorbing material obtainable by this process, the use of the water-absorbing material in hygiene articles and packaging material and hygiene articles comprising this material.

    Abstract translation: 本发明涉及一种制造吸水材料的方法,其包括在流化床反应器中以0°的范围在连续方法中用至少一种非反应性涂层剂喷涂吸水聚合物颗粒的步骤 C.至150℃,条件是非反应性涂层剂不包含弹性成膜聚合物,可通过该方法获得的吸水材料,在卫生制品中使用吸水材料, 包括该材料的包装材料和卫生制品。

    Postcrosslining of Water Absorbing Polymers With Cyclic Carbamates and/or Cyclic Ureas
    27.
    发明申请
    Postcrosslining of Water Absorbing Polymers With Cyclic Carbamates and/or Cyclic Ureas 有权
    具有循环氨基甲酸酯和/或环状尿素的吸水性聚合物的交联

    公开(公告)号:US20080171837A1

    公开(公告)日:2008-07-17

    申请号:US11630949

    申请日:2005-07-28

    CPC classification number: A61L15/60

    Abstract: Disclosed is a process for postcrosslinking a water absorbing polymer by the polymer being treated with at least one postcrosslinker and postcrosslinked and dried during or after the treatment by raising the temperature, the at least one postcrosslinker being a cyclic carbamate or a cyclic urea, wherein the cyclic carbamate or the cyclic urea was obtained by reacting respectively an aminoalcohol or a diamine with a cyclic carbonate.

    Abstract translation: 公开了一种通过用至少一种后交联剂处理的聚合物后交联吸水聚合物的方法,并且在处理期间或之后通过升高温度进行后交联和干燥,所述至少一种后交联剂是环状氨基甲酸酯或环脲,其中 通过使氨基醇或二胺与环状碳酸酯反应,得到环状氨基甲酸酯或环状脲。

    Postcrosslinking of water-absorbing polymers
    29.
    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

    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。

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