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    Method for producing water-absorbing polymer
    3.
    发明专利
    Method for producing water-absorbing polymer 有权
    生产吸水聚合物的方法

    公开(公告)号：JP2013053315A

    公开(公告)日：2013-03-21

    申请号：JP2012257964

    申请日：2012-11-26

    Applicant: Basf Se ,  ビーエーエスエフ ソシエタス・ヨーロピアBasf Se

    Inventor： WEISMANTEL MATTHIAS ,  BRUHNS STEFAN ,  ESBROECK DOMINICUS VAN

    IPC: C08F6/10 ,  A61F13/15 ,  A61F13/49 ,  A61F13/53

    CPC classification number: B01J20/30 ,  C08F6/008 ,  C08F6/10 ,  F26B17/04 ,  F26B21/06 ,  C08L33/02

    Abstract: PROBLEM TO BE SOLVED: To provide an improved method for producing a water-absorbing polymer particle, and especially to provide improved drying of aqueous polymer gel produced in the method.SOLUTION: The method for producing a water-absorbing polymer is provided, in which a monomer solution is polymerized and the obtained hydrogel is dried by using warmed gas flow. In the method, the drying is performed in at least two temperature regions, and gas introduction temperatures of the temperature regions satisfy the conditions that Tis not equal to T, wherein n and a are each an integer greater than 0, and/or the gas flow is flowed to the hydrogel from underneath in the anterior portion of a belt dryer and from above in the posterior portion of the dryer, and reversal of the flow is carried out when the water content of the hydrogel is 15-45 mass%, and/or the gas flow is flowed to the hydrogel layer at least partially from underneath in the dryer, wherein the gas velocity is 5-30% of the gas velocity necessary for the hydrogel to separate from the belt.

    Abstract translation: 要解决的问题：提供一种制备吸水性聚合物颗粒的改进方法，特别是提供在该方法中制备的聚合物水凝胶的改进干燥。 解决方案：提供了一种吸水聚合物的制造方法，其中单体溶液聚合，所得水凝胶通过使用温热气流干燥。 在该方法中，在至少两个温度区域进行干燥，温度区域的气体导入温度满足T n 的气体导入温度不等于T n + a ，其中n和a各自为大于0的整数，和/或气流从带式干燥器的前部中的下方流到水凝胶，并且在 干燥器的后部，并且当水凝胶的含水量为15-45质量％时进行流动的反转，和/或气流至少部分地从干燥器中的下方流到水凝胶层，其中 气体速度是水凝胶与带分离所需的气体速度的5-30％。 版权所有（C）2013，JPO＆INPIT

    Method for producing particulate crosslinked gelatinous polymer
    4.
    发明专利
    Method for producing particulate crosslinked gelatinous polymer 有权
    生产颗粒状交联凝胶聚合物的方法

    公开(公告)号：JP2010196069A

    公开(公告)日：2010-09-09

    申请号：JP2010110985

    申请日：2010-05-13

    Applicant: Basf Se ,  ビーエーエスエフ ソシエタス・ヨーロピアBasf Se

    Inventor： FUNK RUEDIGER ,  HILLEBRECHT ANNEMARIE ,  STUEVEN UWE ,  WEISMANTEL MATTHIAS ,  VAN ESBROECK DOMINICUS ,  POSSEMIERS KARL J ,  DE KAEY RONNY

    IPC: C08F2/01 ,  C08F20/00

    CPC classification number: B01J19/0066 ,  B01J8/10 ,  B01J2208/0061 ,  C08F2/01 ,  C08F6/008 ,  C08F6/10 ,  C08F220/06 ,  C08F220/56

    Abstract: PROBLEM TO BE SOLVED: To provide a method for continuously producing particulate crosslinked gelatinous polymers by copolymerizing water-soluble monoethylenically unsaturated monomers (a) with 0.001 to 5 mol% (based on the monomer (a)) of monomers (b) containing at least two polymerizable groups in a kneader. SOLUTION: The method for producing particulate crosslinked gelatinous polymers is characterized in that at least one of following conditions is satisfied: (1) the degree of charging of the monomers in the kneader is at least 71%; (2) the water-soluble monoethylenically unsaturated monomers contain hydroquinone hemi-ether up to 150 ppm; (3) the polymerization zone temperature is higher than 65°C; and (4) the kneader has back mixing ratio less than 0.33. Further, a material added to an inlet of the kneader is conveyed to an end part of the kneader in the axial direction. COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种通过使水溶性单烯属不饱和单体（a）与0.001〜5摩尔％（单体（a））单体（b）共聚而连续生产颗粒状交联凝胶状聚合物的方法， 在捏合机中含有至少两个可聚合基团。 ＆lt; P＆gt;解决方案：颗粒状交联凝胶状聚合物的制造方法的特征在于满足以下条件中的至少一个：（1）捏合机中单体的充填度为71％以上。 （2）水溶性单烯属不饱和单体含有高达150ppm的氢醌半乙醚; （3）聚合区温度高于65℃; 和（4）捏合机的回混比小于0.33。 此外，向捏合机的入口添加的材料沿轴向输送到捏合机的端部。 版权所有（C）2010，JPO＆INPIT

    Method of manufacturing water-absorbing polymer particle
    5.
    发明专利
    Method of manufacturing water-absorbing polymer particle 审中-公开
    制造吸水聚合物颗粒的方法

    公开(公告)号：JP2014141686A

    公开(公告)日：2014-08-07

    申请号：JP2014098653

    申请日：2014-05-12

    Applicant: Basf Se ,  ビーエーエスエフ ソシエタス・ヨーロピアBasf Se

    Inventor： STUEVEN UWE ,  FUNK RUEDIGER ,  WEISMANTEL MATTHIAS ,  ESBROECK DOMINICUS VAN ,  RONNY DE KAEY

    IPC: C08F20/06 ,  C08F2/01 ,  C08F6/00

    CPC classification number: C08F220/06 ,  C08F6/008 ,  C08J3/12 ,  C08J2333/02 ,  F26B17/04 ,  F26B25/002 ,  C08L33/02

    Abstract: PROBLEM TO BE SOLVED: To provide an improved method for drying an aqueous polymer gel on an air circulation type band dryer, especially a method for introducing dryness without unevenness and reduced production inhibition.SOLUTION: The problem is solved by a method of manufacturing a water-absorbing polymer particle by polymerizing a monomer solution or a monomer suspension containing a) at least one kind of ethylenic unsaturated acid group-containing monomer, b) at least one kind of crosslinking agent and c) at least one kind of initiator, including drying an aqueous polymer gel on an air circulation type band dryer, pulverization, classification and optionally crosslinking after thermal surface, and applying the polymer gel on a conveyor belt of the air circulation type band dryer by a rotating belt having a specific rotating angle and angle speed.

    Abstract translation: 要解决的问题：提供一种在空气循环型带式干燥机上干燥水性聚合物凝胶的改进方法，特别是一种在不均匀且不产生不均匀性的情况下引入干燥的方法。解决方案：通过制造水的方法来解决问题 通过聚合单体溶液或含有a）至少一种含烯属不饱和酸基团的单体的单体悬浮液，b）至少一种交联剂和c）至少一种引发剂，包括干燥 在空气循环型带式干燥机上的水性聚合物凝胶，粉碎，分级和热表面之后的任选交联，并通过具有特定旋转角度和角速度的旋转带将聚合物凝胶施加在空气循环型带式干燥机的输送带上 。

    Method of manufacturing water-absorbing polymer
    6.
    发明专利
    Method of manufacturing water-absorbing polymer 有权
    制造吸水聚合物的方法

    公开(公告)号：JP2013040353A

    公开(公告)日：2013-02-28

    申请号：JP2012257965

    申请日：2012-11-26

    Applicant: Basf Se ,  ビーエーエスエフ ソシエタス・ヨーロピアBasf Se

    Inventor： WEISMANTEL MATTHIAS ,  BRUHNS STEFAN ,  ESBROECK DOMINICUS VAN

    IPC: C08F6/00

    CPC classification number: B01J20/30 ,  C08F6/008 ,  C08F6/10 ,  F26B17/04 ,  F26B21/06 ,  C08L33/02

    Abstract: PROBLEM TO BE SOLVED: To provide an improved method of manufacturing a water-absorbing polymer, and especially to provide improved drying of an aqueous polymer gel generated during the method.SOLUTION: The method of manufacturing the water-absorbing polymer in which a monomer solution is polymerized, and the obtained hydrogel is dried by using a gas flow that has been warmed solves the problem, wherein the method executes the drying in at least two temperature zone regions respectively, the gas introduction temperatures in the temperature zone regions meet a condition that Tis not equal to T, and index n and a are integers that are larger than 0, and/or the gas flow is made to flow to the hydrogel from under the front portion of a belt dryer and from upper the backward portion of the dryer, the reversal of the flow is performed at 15-45 mass% of the water content of the hydrogel, and/or the gas flow is made to flow to the hydrogel layer in the dryer at least partially from under, and the gas velocity is 5-30% of the gas velocity necessary so that the hydrogel may part from the belt.

    Abstract translation: 要解决的问题：提供一种制造吸水性聚合物的改进方法，特别是提供在该方法期间产生的聚合物凝胶的改进干燥。 解决方案：制备其中单体溶液聚合的吸水性聚合物的方法，所得到的水凝胶通过使用已被加热的气流干燥，解决了该问题，其中该方法至少执行干燥 两个温度区域区域，温度区域区域中的气体导入温度满足条件：T n 不等于T n + / SB>，并且索引n和a是大于0的整数，和/或使气流从带式干燥器的前部下方和干燥器的后部的上方流向水凝胶， 以15〜45质量％的水凝胶的含水量进行流动的逆转，和/或使气流至少部分地从下方流入干燥器中的水凝胶层，气体速度为5〜 所需气体速度的30％，使得水凝胶可以从带部分。 版权所有（C）2013，JPO＆INPIT

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