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    METHOD FOR THE PRODUCTION OF WATER ABSORBING POLYMERS
    2.
    发明申请
    METHOD FOR THE PRODUCTION OF WATER ABSORBING POLYMERS 有权
    生产吸水聚合物的方法

    公开(公告)号：US20140047730A1

    公开(公告)日：2014-02-20

    申请号：US14063129

    申请日：2013-10-25

    Applicant: BASF SE

    Inventor： Matthias Weismantel ,  Stefan Bruhns ,  Dominicus van Esbroeck

    IPC: B01J20/30

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

    Abstract: A process for producing a water-absorbing polymer by polymerizing a monomer solution and drying the resulting hydrogel by means of a heated gas stream comprises effecting the drying in two or more temperature zones, and/or the gas stream is flowed against the hydrogel upwardly in the upstream sector of the belt dryer and downwardly in the downstream sector of the belt dryer, the direction of flow being reversed at a water content of 15% to 45% by weight for the hydrogel, and/or the hydrogel layer is flowed against in a belt dryer upwardly to some extent at least, the gas velocity being 5% to 30% of the gas velocity required to lift the hydrogel off the belt, also apparatus for carrying out the process and use of the water-absorbing polymers produced by the process to produce hygiene articles.

    Abstract translation: 通过聚合单体溶液并通过加热的气流干燥所得的水凝胶来生产吸水性聚合物的方法包括在两个或多个温度区域进行干燥和/或将气流向上流过水凝胶 带式干燥器的上游部分，并且在带式干燥器的下游部分中向下流动，水凝胶的水含量为15％至45％（重量），并且/或水凝胶层相对于 带式干燥机至少在一定程度上至少具有气体速度为水凝胶离开带所需的气体速度的5％至30％，也是用于实施由 生产卫生用品的过程。

    METHOD FOR PRODUCING WATER-ABSORBING POLYMER PARTICLES
    5.
    发明申请
    METHOD FOR PRODUCING WATER-ABSORBING POLYMER PARTICLES 审中-公开
    生产吸水聚合物颗粒的方法

    公开(公告)号：US20140107305A1

    公开(公告)日：2014-04-17

    申请号：US14107320

    申请日：2013-12-16

    Applicant: BASF SE

    Inventor： Rüdiger Funk ,  Matthias Weismantel ,  Dominicus van Esbroeck ,  Filip Mees

    IPC: C08F2/10

    CPC classification number: C08F2/10 ,  C08F2/01 ,  C08F2/44

    Abstract: A process for producing water-absorbing polymer particles, comprising the addition of a solid additive to a polymer gel by means of a conveying screw (1), wherein the solid additive and a gas volume flow are fed to the conveying screw (1) by means of an addition channel (2).

    Abstract translation: 一种生产吸水性聚合物颗粒的方法，包括通过输送螺杆（1）向聚合物凝胶中加入固体添加剂，其中固体添加剂和气体体积流通过 附加通道（2）的装置。

    Apparatus for the production of water absorbing polymers
    6.
    发明授权
    Apparatus for the production of water absorbing polymers 有权
    用于生产吸水聚合物的设备

    公开(公告)号：US09238215B2

    公开(公告)日：2016-01-19

    申请号：US14063129

    申请日：2013-10-25

    Applicant: BASF SE

    Inventor： Matthias Weismantel ,  Stefan Bruhns ,  Dominicus van Esbroeck

    IPC: F26B5/08 ,  B01J20/30 ,  C08F6/00 ,  C08F6/10 ,  F26B17/04 ,  F26B21/06

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

    Abstract: An apparatus for producing a water-absorbing polymer by polymerizing a monomer solution and drying the resulting hydrogel by means of a heated gas stream through effecting the drying in two or more temperature zones. A gas stream is flowed against the hydrogel upwardly in the upstream sector of the belt dryer and downwardly in the downstream sector of the belt dryer, the direction of flow being reversed at a water content of 15% to 45% by weight for the hydrogel. The hydrogel layer is flowed against in a belt dryer upwardly to some extent at least, the gas velocity being 5% to 30% of the gas velocity required to lift the hydrogel off the belt, to produce hygiene articles.

    Abstract translation: 通过使单体溶液聚合并通过加热的气流干燥所得的水凝胶来实现两个或多个温度区域的干燥，制造吸水性聚合物的装置。 气流在带式干燥器的上游部分中向上流动，并且在带式干燥器的下游部分中向下流动水凝胶，流动方向相对于水凝胶的含水量为15重量％至45重量％。 水凝胶层在带式干燥机中向上流动至少一定程度，气体速度为将水凝胶从带上提起而产生卫生制品所需的气体速度的5％至30％。

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