公开(公告)号：US20140302321A1

公开(公告)日：2014-10-09

申请号：US14266367

申请日：2014-04-30

Applicant: BASF SE

Inventor： Uwe Stueven ,  Matthias Weismantel ,  Wilfried Heide ,  Marco Krüger ,  Volker Seidl ,  Stefan Blei ,  Dennis Lösch ,  Rüdiger Funk ,  Annemarie Hillebrecht

IPC: B01J10/00 ,  C08F220/06

CPC classification number: B01J10/002 ,  A61L15/24 ,  A61L15/60 ,  C08F2/00 ,  C08F2/10 ,  C08F2/44 ,  C08F220/06 ,  C08F222/1006 ,  C08L33/02

Abstract: A process for preparing water-absorbing polymer beads with high permeability by polymerizing droplets of a monomer solution in a gas phase surrounding the droplets, wherein a water-insoluble inorganic salt is suspended in the monomer solution and the polymer beads have a mean diameter of at least 150 μm.

Abstract translation: 一种制备具有高渗透性的吸水聚合物珠粒的方法，该方法是在围绕液滴的气相中聚合单体溶液的液滴，其中将水不溶性无机盐悬浮在单体溶液中，聚合物珠粒的平均直径为 至少150微米。

公开(公告)号：US08828323B2

公开(公告)日：2014-09-09

申请号：US13667159

申请日：2012-11-02

Applicant: BASF SE

Inventor： Matthias Weismantel ,  Rüdiger Funk ,  Ann Becker ,  Leo Van Miert

IPC: B01J19/00 ,  F26B9/06 ,  F26B17/14 ,  C08F220/06 ,  F26B25/00 ,  B01F7/08 ,  B01J8/00 ,  B65G37/00 ,  C08F222/10

CPC classification number: C08F220/06 ,  B01F7/081 ,  C08F222/1006 ,  F26B9/063 ,  F26B17/1491 ,  F26B25/002

Abstract: A process for producing water-absorbing polymer particles, wherein a polymer gel is removed from a polymerization reactor, stored intermediately as a particulate polymer gel in a delay vessel, removed by means of a first conveying device at the lower end of the delay vessel and dried, the intermediately stored particulate polymer gel being conveyed within the delay vessel by means of at least one second conveying device above the first conveying device in the direction of the first conveying device.

Abstract translation: 一种生产吸水性聚合物颗粒的方法，其中聚合物凝胶从聚合反应器中除去，作为延迟容器中的颗粒状聚合物凝胶中间存储，借助于在延迟容器的下端处的第一输送装置除去， 干燥后，通过在第一输送装置上方的第一输送装置的方向上的至少一个第二输送装置在延迟容器内输送中间储存的颗粒状聚合物凝胶。

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。

公开(公告)号：US20140038817A1

公开(公告)日：2014-02-06

申请号：US14013224

申请日：2013-08-29

Applicant: BASF SE

Inventor： Marco Krüger ,  Stefan Blei ,  Wilfried Heide ,  Matthias Weismantel ,  Uwe Stueven

IPC: B01J20/26

CPC classification number: B01J20/261 ,  C08F2/01 ,  C08F2/10 ,  C08F220/06 ,  C08F222/1006 ,  Y10T428/2982

Abstract: A process for producing water-absorbing polymer particles by polymerizing droplets of a monomer solution in a surrounding gas phase in a reaction chamber, wherein the monomer solution is metered into the reaction chamber via at least one bore, and the diameter is from 210 to 290 μm per bore and the metering rate is from 0.9 to 5 kg/h per bore.

Abstract translation: 通过在反应室中聚合周围气相中的单体溶液的液滴来生产吸水性聚合物颗粒的方法，其中单体溶液通过至少一个孔计量到反应室中，直径为210-290 每个孔的妈妈，每个孔的计量率为0.9至5kg / h。

公开(公告)号：US20130316177A1

公开(公告)日：2013-11-28

申请号：US13957073

申请日：2013-08-01

Applicant: BASF SE

Inventor： Dennis Lösch ,  Matthias Weismantel ,  Marco Krüger ,  Antje Ziemer

IPC: C08F220/10

Abstract: A process for preparing water-absorbing polymer beads by polymerizing droplets comprising at least one monomer in a gas phase surrounding the droplets, the droplets being obtained by enveloping a first monomer solution with a second monomer solution and polymerizing the second monomer solution and polymerizing to give a more highly crosslinked polymer than the first monomer solution.

Abstract translation: 通过在包围液滴的气相中聚合包含至少一种单体的液滴来制备吸水聚合物珠粒的方法，所述液滴通过用第二单体溶液包封第一单体溶液并聚合第二单体溶液并聚合得到， 比第一单体溶液更高度交联的聚合物。

公开(公告)号：US12220686B2

公开(公告)日：2025-02-11

申请号：US17289287

申请日：2019-11-04

Applicant: BASF SE

Inventor： Monte Alan Peterson ,  Ronny De Kaey ,  Karl Possemiers ,  Juergen Schroeder ,  Ruediger Funk ,  Matthias Weismantel

IPC: C08F120/06 ,  B01J19/00 ,  B01J19/24 ,  B01J20/26 ,  B01J20/28 ,  B01J20/30

Abstract: The invention relates to a process for producing superabsorbent polymer particles, comprising polymerization of a monomer solution, wherein the monomer solution comprises partly neutralized acrylic acid formed by continuous mixing of acrylic acid and an aqueous solution of a base, the apparatus for preparing the partly neutralized acrylic acid comprises a vessel (B), and the feed line to vessel (B) ends inside vessel (B) below the liquid Level of the partly neutralized acrylic acid.

公开(公告)号：US12059504B2

公开(公告)日：2024-08-13

申请号：US17272364

申请日：2019-09-17

Applicant: BASF SE

Inventor： Rene Callot ,  Ruediger Funk ,  Marco Krueger ,  Thomas Pfeiffer ,  Karl Possemiers ,  Juergen Schroeder ,  Matthias Weismantel

IPC: C08F220/06 ,  A61L15/60 ,  B01J20/26 ,  B08B1/02 ,  B08B1/16 ,  B08B1/20 ,  C08F6/00 ,  C08J3/24

CPC classification number: A61L15/60 ,  B01J20/261 ,  B08B1/165 ,  B08B1/20 ,  C08F220/06 ,  C08J3/245 ,  B01J2220/68 ,  C08F6/008

Abstract: A process for producing superabsorbent particles by polymerizing a monomer solution or suspension, comprising drying of the resultant aqueous polymer gel in an air circulation belt drier, grinding, classifying, and optionally thermal surface postcrosslinking, wherein the aqueous polymer gel is introduced into the air circulation belt drier by means of an oscillating conveyor belt, the underside of the revolving conveyor belt is freed of adhering polymer gel by means of at least one stripper device, and the underside of the revolving conveyor belt is sprayed with water.

公开(公告)号：US11680142B2

公开(公告)日：2023-06-20

申请号：US16628689

申请日：2018-07-06

Applicant: BASF SE

Inventor： Ruediger Funk ,  Thomas Pfeiffer ,  Matthias Weismantel ,  Monte Alan Peterson ,  Karl Possemiers ,  Ronny De Kaey

IPC: C08J3/12 ,  B07B1/46 ,  C08J3/075 ,  C08J3/24

CPC classification number: C08J3/12 ,  B07B1/46 ,  C08J3/075 ,  C08J3/245 ,  C08J2300/12 ,  C08J2300/14 ,  C08J2333/08

Abstract: The invention relates to a process for producing superabsorbent polymer particles, comprising surface postcrosslinking, classifying the surface postcrosslinked superabsorbent polymer particles, deagglomerating the separated oversize fraction using a roll crusher and recycling the disintegrated oversize fraction before or into the classification of the surface postcrosslinked superabsorbent polymer particles.

公开(公告)号：US20220185924A1

公开(公告)日：2022-06-16

申请号：US17432135

申请日：2020-02-21

Applicant: BASF SE

Inventor： Monte Alan Peterson ,  Ruediger Funk ,  Matthias Weismantel ,  Juergen Schroeder

IPC: C08F220/06 ,  A61L15/60 ,  B02C4/02 ,  B02C4/28 ,  B02C4/40 ,  C08F2/06 ,  B01J20/28 ,  B01J20/26 ,  B01J20/30

Abstract: The invention relates to a process for producing superabsorbent polymer particles, comprising polymerization of a monomer solution, drying the resulting polymer gel and grinding the dried polymer gel with a roll mill, wherein the rolls of the roll mill are cleaned by reducing the feed rate to the roll mill, and if the deflection and/or the power consumption increases above a setpoint, operating the roll mill with reduced feed, and increasing the feed rate to the roll mill.

公开(公告)号：US20210402373A1

公开(公告)日：2021-12-30

申请号：US17289302

申请日：2019-11-04

Applicant: BASF SE

Inventor： Monte Alan Peterson ,  Ronny De Kaey ,  Karl Possemiers ,  Juergen Schroeder ,  Ruediger Funk ,  Matthias Weismantel

IPC: B01J20/30 ,  B01J20/26 ,  B01J19/00 ,  B01J19/24

Abstract: The invention relates to a process for producing superabsorbent polymer particles, comprising polymerization of a monomer solution, wherein the monomer solution comprises partly neutralized acrylic acid formed by continuous mixing of acrylic acid and an aqueous solution of a base, the apparatus for preparing the partly neutralized acrylic acid comprises a vessel (B), and the vessel (B) has a cylindrical shape and a torispherical bottom.