公开(公告)号：US20130281594A1

公开(公告)日：2013-10-24

申请号：US13870599

申请日：2013-04-25

Applicant: BASF SE

Inventor： Rainer Dobrawa ,  Thomas Daniel ,  Uwe Stueven ,  Marco Krüger ,  Francisco Javier Lopez Villanueva ,  Norbert Herfert ,  Michael A. Mitchell

IPC: B01J20/26 ,  B01J20/30

CPC classification number: B01J20/26 ,  A61L15/60 ,  B01J20/264 ,  B01J20/3085 ,  C08F2/10 ,  C08F220/06 ,  C08F222/1006 ,  Y10T428/249958 ,  Y10T428/249981 ,  Y10T428/254 ,  Y10T428/2982 ,  Y10T428/31935

Abstract: The present invention relates to a process for producing water-absorbent polymer particles by polymerizing droplets of a monomer solution in a surrounding heated gas phase and flowing the gas cocurrent through the polymerization chamber, wherein the temperature of the gas leaving the polymerization chamber is 130° C. or less, the gas velocity inside the polymerization chamber is at least 0.5 m/s, and the droplets are generated by using a droplet plate having a multitude of bores.

Abstract translation: 本发明涉及一种通过在周围加热气相中聚合单体溶液的液滴并使气体并流通过聚合室流过气体聚合物颗粒的方法，其中离开聚合室的气体的温度为130℃ 聚合室内的气体速度为至少0.5m / s，通过使用具有多个孔的液滴板产生液滴。

公开(公告)号：US20130270479A1

公开(公告)日：2013-10-17

申请号：US13858246

申请日：2013-04-08

Applicant: BASF SE

Inventor： Patrick Hamilton ,  Olaf Hoeller ,  Joseph Grill ,  William G-J Chiang ,  Michael A. Mitchell

IPC: B01J20/32 ,  B01J20/28

CPC classification number: B01J20/3253 ,  A61L15/24 ,  A61L15/60 ,  B01J20/28016 ,  C08J3/245 ,  C08J2333/02 ,  C08L33/02

Abstract: A process for producing surface postcrosslinked water-absorbing polymer particles, wherein the water-absorbing polymer particles are coated, before, during or after the surface postcrosslinking, with at least one salt of a trivalent metal cation and a glycinate anion.

Abstract translation: 一种制备表面后交联吸水性聚合物颗粒的方法，其中在表面后交联之前，期间或之后，用至少一种三价金属阳离子和甘氨酸阴离子盐涂覆吸水性聚合物颗粒。