公开(公告)号：US11142614B2

公开(公告)日：2021-10-12

申请号：US16217740

申请日：2018-12-12

Applicant: BASF SE

Inventor： Thomas Daniel ,  Norbert Herfert ,  Stephan Bauer ,  Katrin Baumann ,  Birgit Reinhard ,  Jürgen Freiberg ,  Christophe Bauduin ,  Katarzyna Dobrosielska-Oura ,  Michael A. Mitchell

IPC: C08J3/24 ,  C08J9/00 ,  A61L15/22 ,  A61L15/42 ,  A61L15/60 ,  B01J20/26 ,  B01J20/28 ,  C08F6/00 ,  C08F220/06 ,  C08F222/10

Abstract: The present invention relates to a process for producing surface-postcrosslinked water-absorbent polymer particles by coating of water-absorbent polymer particles having a content of residual monomers in the range from 0.03 to 15% by weight with at least one surface-postcrosslinker and thermal surface-postcrosslinking at temperatures in the range from 100 to 180° C.

公开(公告)号：US10682435B2

公开(公告)日：2020-06-16

申请号：US15552844

申请日：2016-02-17

Applicant: BASF SE

Inventor： Tina Mark ,  Thomas Daniel ,  Stefan Molter ,  Erich Lutz

IPC: C08F2/14 ,  A61L15/60 ,  C08F2/18 ,  C08F220/06 ,  C08F222/38

Abstract: A process for producing water-absorbing polymer particles by suspension polymerization, wherein the polymerization is conducted in the presence of dissolved oxygen.

公开(公告)号：US20180126032A1

公开(公告)日：2018-05-10

申请号：US15564212

申请日：2016-03-24

Applicant: BASF SE

Inventor： Tina Mark ,  Thomas Daniel ,  Erich Lutz ,  Stefan Molter

IPC: A61L15/60 ,  A61L15/22 ,  C08F265/06 ,  C08F6/18 ,  C08L101/14 ,  C08L51/00

CPC classification number: A61L15/60 ,  A61L15/22 ,  C08F6/18 ,  C08F265/04 ,  C08F265/06 ,  C08J3/12 ,  C08J2300/14 ,  C08L51/003 ,  C08L101/14 ,  C08F265/02 ,  C08F220/06 ,  C08F222/385

Abstract: A process for agglomerating superabsorbent particles, wherein polymer particles having a particle size of 250 μm or less are dispersed in a hydrophobic organic solvent, the dispersed polymer particles are mixed with an aqueous monomer solution, the total amount of water applied to the dispersed polymer particles being at least 100% by weight, based on the dispersed polymer particles, and the monomer solution is polymerized.

公开(公告)号：US20180044486A1

公开(公告)日：2018-02-15

申请号：US15552858

申请日：2016-01-26

Applicant: BASF SE

Inventor： Stephan Bauer ,  Yvonne Hagen ,  Katrin Baumann ,  Christophe Bauduin ,  Thomas Daniel ,  Thomas Pfeiffer

IPC: C08J3/24 ,  A61L15/24 ,  C08F220/06 ,  A61L15/60 ,  B01J20/26 ,  B01J20/28

CPC classification number: C08J3/245 ,  A61L15/24 ,  A61L15/60 ,  B01J20/267 ,  B01J20/28004 ,  C08F2/10 ,  C08F220/06 ,  C08J2333/02 ,  C09D133/02

Abstract: The present invention relates to a process for producing surface-postcrosslinked water-absorbent polymer particles comprising polymerizing droplets of a monomer solution, wherein water-absorbent polymer particles having an average particle diameter from 150 to 400 μηη, an amount of water-absorbent polymer particles having a particle size of less than 100 μηη of less than 5% by weight and an amount of water-absorbent polymer particles having a particle size of more than 500 μηη of less than 5% by weight are coated with at least one surface-postcrosslinker and thermal surface-postcrosslinked.

公开(公告)号：US20170320983A1

公开(公告)日：2017-11-09

申请号：US15661543

申请日：2017-07-27

Applicant: BASF SE

Inventor： Thomas Daniel ,  Norbert Herfert ,  Stephan Bauer ,  Katrin Baumann ,  Birgit Reinhard ,  Jürgen Freiberg ,  Rudolf Schliwa

IPC: C08F220/06 ,  C08F6/00 ,  B01J20/28 ,  B01J20/26 ,  A61L15/22 ,  A61L15/60 ,  A61L15/42 ,  A61L15/24 ,  C08L33/02

CPC classification number: C08F220/06 ,  A61L15/22 ,  A61L15/24 ,  A61L15/42 ,  A61L15/60 ,  B01J20/267 ,  B01J20/28023 ,  B01J20/2805 ,  C08F6/005 ,  C08L33/02 ,  C08L33/08 ,  C08F2222/1013

Abstract: The present invention relates to a process for producing water-absorbent polymer particles by polymerizing droplets of a monomer solution comprising less than 0.3% by weight of persulfate and at least 0.05% by weight of azo initiator and thermal aftertreatment of the formed polymer particles at less than 100° C. in a fluidized bed for 60 to 300 minutes.

公开(公告)号：US20170266640A1

公开(公告)日：2017-09-21

申请号：US15532153

申请日：2015-11-24

Applicant: BASF SE

Inventor： Tina Mark ,  Thomas Daniel ,  Erich Lutz ,  Stefan Molter ,  Anna Kowalski

IPC: B01J20/26 ,  A61L15/60 ,  A61F13/53 ,  B01J20/30 ,  C08J3/24 ,  C08F20/06 ,  A61L15/24

CPC classification number: B01J20/265 ,  A61F13/53 ,  A61F2013/530226 ,  A61L15/24 ,  A61L15/60 ,  B01J20/3085 ,  C08F2/18 ,  C08F20/06 ,  C08J3/245 ,  C08J2333/02 ,  C08F220/06 ,  C08F222/385 ,  C08F2222/1026

Abstract: A process for producing water-absorbing polymer particles by suspension polymerization and thermal surface postcrosslinking, wherein the agglomerated base polymer obtained by suspension polymerization has a centrifuge retention capacity of at least 37 g/g and the thermal surface postcrosslinking is conducted at 100 to 190° C.

公开(公告)号：US20150306272A1

公开(公告)日：2015-10-29

申请号：US14651259

申请日：2013-12-09

Applicant: BASF SE

Inventor： Asif Karim ,  Thomas Daniel ,  Christine Schön

IPC: A61L15/46 ,  C07C31/20 ,  A61L15/20 ,  A61L15/60 ,  A61L15/24

CPC classification number: A61L15/46 ,  A61F13/53 ,  A61F13/8405 ,  A61F2013/530481 ,  A61F2013/8408 ,  A61L15/20 ,  A61L15/24 ,  A61L15/60 ,  C07C31/20 ,  F04C2270/041

Abstract: Superabsorbents comprising 1,2-decanediol exhibit reduced odor formation.

Abstract translation: 包含1,2-癸二醇的超吸收剂表现出减少的气味形成。

公开(公告)号：US20150299404A1

公开(公告)日：2015-10-22

申请号：US14443082

申请日：2013-11-07

Applicant: BASF SE

Inventor： Thomas Daniel ,  Norbert Herfert ,  Stephan Bauer ,  Katrin Baumann ,  Birgit Reinhard ,  Jürgen Freiberg ,  Christophe Bauduin ,  Katarzyna Dobrosielska-Oura ,  Michael A. Mitchell

IPC: C08J3/24 ,  B01J20/28 ,  A61L15/60 ,  A61L15/22 ,  A61L15/42 ,  B01J20/26 ,  C08J9/00

CPC classification number: C08J3/245 ,  A61L15/225 ,  A61L15/425 ,  A61L15/60 ,  B01J20/267 ,  B01J20/28004 ,  B01J20/28011 ,  B01J20/28019 ,  C08F6/008 ,  C08F220/06 ,  C08F222/1006 ,  C08J3/247 ,  C08J9/00 ,  C08J2207/12 ,  C08J2333/02

Abstract: The present invention relates to a process for producing surface-postcrosslinked water-absorbent polymer particles by coating of water-absorbent polymer particles having a content of residual monomers in the range from 0.03 to 15% by weight with at least one surface-postcrosslinker and thermal surface-postcrosslinking at temperatures in the range from 100 to 180° C.

Abstract translation: 本发明涉及通过将具有0.03〜15重量％的残留单体含量的吸水性聚合物颗粒与至少一个表面后交联剂和热敏涂料一起涂覆来制备表面后交联的吸水性聚合物颗粒的方法 在100至180℃的温度下进行表面后交联。

公开(公告)号：US08618206B2

公开(公告)日：2013-12-31

申请号：US13792529

申请日：2013-03-11

Applicant: BASF SE

Inventor： Thomas Daniel ,  Christophe Bauduin ,  Norbert Herfert

IPC: C08F8/42 ,  C08F220/00 ,  C08K3/34

CPC classification number: B01J20/321 ,  C08F220/06 ,  C08F222/1006 ,  C08J3/24

Abstract: A process for producing water-absorbing polymer particles with low caking tendency and high absorption under pressure, comprising polymerization of a monomer solution or suspension, drying of the resulting polymer gel, grinding, classifying, thermal surface postcrosslinking and coating with silicon dioxide, wherein the water-absorbing polymer particles have been coated, before, during or after the surface postcrosslinking with aluminum cations.

公开(公告)号：US20130200305A1

公开(公告)日：2013-08-08

申请号：US13759147

申请日：2013-02-05

Applicant: BASF SE

Inventor： Karin Flore ,  Thomas Daniel ,  Agnes Voitl ,  Gabriele Iffland

IPC: B01J20/30

CPC classification number: B01J20/30 ,  B01J20/267 ,  C08F220/06 ,  C08F222/1006

Abstract: A process for producing water-absorbing polymer particles by polymerizing an aqueous monomer solution or suspension comprising at least one ethylenically unsaturated monomer which bears acid groups and has been at least partly neutralized by addition of a neutralizing agent, wherein the neutralizing agent is filtered prior to the addition.

Abstract translation: 通过聚合包含至少一种具有酸性基团并至少部分通过加入中和剂中和的烯属不饱和单体的含水单体溶液或悬浮液来生产吸水聚合物颗粒的方法，其中中和剂在 添加。