Method of manufacturing water-absorbing polymer particle
    3.
    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

    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 for producing particulate crosslinked gelatinous polymer
    5.
    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

    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。 < P>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

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