公开(公告)号：US20220071818A9

公开(公告)日：2022-03-10

申请号：US17048354

申请日：2019-04-09

Applicant: BASF SE

Inventor： Stephan Bauer ,  Katrin Baumann ,  Norbert Herfert ,  Li Guo DUAN ,  Le LI ,  Xiao Yan LIU ,  Gao Min SUN

IPC: A61F13/53 ,  A61L15/24 ,  A61L15/60

Abstract: The present disclosure relates to fluid absorbent cores including at least one absorption layer, the layer including at least 80% by weight of water-absorbent polymer particles, 0 to 10% by weight of an adhesive and from 0 to 10% by weight of fibrous material, wherein the water-absorbent polymer particles within the absorption layer are water-absorbent polymer particles having a vortex of 40 s or less and having a roundness of 0.79 to 0.85 and/or a CRC of 38 g/g to 85 g/g.

公开(公告)号：US20210362126A1

公开(公告)日：2021-11-25

申请号：US16958793

申请日：2019-01-02

Applicant: BASF SE

Inventor： Stephan Bauer ,  Katrin Baumann ,  Markus Toennessen ,  Christophe Bauduin ,  Markus Christian Biel ,  Thomas Daniel

IPC: B01J20/28 ,  A61L15/60

Abstract: Superabsorbent mixtures M comprising at least 70% by weight of superabsorbent A having a liquid absorption of 20 g/g (T20) of less than 300 s and/or a volumetric liquid absorption under pressure 0.3 psi (2.07 kPa) (VAUL) with a τ value of less than 400 s, and at least 5% by weight of superabsorbent B having a centrifuge retention capacity (CRC) of at least 30 g/g.

公开(公告)号：US20200332038A1

公开(公告)日：2020-10-22

申请号：US16913170

申请日：2020-06-26

Applicant: BASF SE

Inventor： Stephan Bauer ,  Tina Mark ,  Lydia König ,  Yvonne Hagen ,  Thomas Daniel

IPC: C08F220/06 ,  A61L15/60 ,  A61L15/42 ,  A61F13/53 ,  A61F13/534 ,  A61L15/24

Abstract: A process for producing water-absorbing polymer particles by suspension polymerization and thermal surface postcrosslinking, wherein the 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：US20190135993A1

公开(公告)日：2019-05-09

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 ,  C08F6/00 ,  B01J20/28 ,  B01J20/26 ,  A61L15/22 ,  C08F220/06 ,  A61L15/42 ,  C08J9/00 ,  A61L15/60

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：US09944739B2

公开(公告)日：2018-04-17

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

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：US20180043052A1

公开(公告)日：2018-02-15

申请号：US15552849

申请日：2016-01-26

Applicant: BASF SE

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

IPC: A61L15/60 ,  B01J19/24 ,  B01J4/00 ,  C08J3/24 ,  C08F2/06 ,  C08F2/34 ,  C08F220/06 ,  B01J19/20 ,  B01J8/44

CPC classification number: A61L15/60 ,  B01J4/002 ,  B01J8/44 ,  B01J19/20 ,  B01J19/2415 ,  B01J2219/185 ,  B01J2219/1943 ,  C08F2/06 ,  C08F2/34 ,  C08F220/06 ,  C08J3/245 ,  C08J2333/02 ,  C08F2222/1013

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 420 to 700 μm, an amount of water-absorbent polymer particles having a particle size of less than 300 μm of less than 5% by weight and an amount of water-absorbent polymer particles having a particle size of more than 800 μm of less than 5% by weight are coated with at least one surface-postcrosslinker and thermal surface-postcrosslinked.

公开(公告)号：US20160280825A1

公开(公告)日：2016-09-29

申请号：US15032333

申请日：2014-10-20

Applicant: BASF SE

Inventor： Stephan Bauer ,  Tina Mark ,  Lydia König ,  Yvonne Hagen ,  Thomas Daniel

IPC: C08F220/06 ,  A61F13/53 ,  A61F13/534 ,  A61L15/60 ,  A61L15/24

Abstract: A process for producing water-absorbing polymer particles by suspension polymerization and thermal surface postcrosslinking, wherein the 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.

Abstract translation: 通过悬浮聚合和热表面后交联制造吸水性聚合物颗粒的方法，其中通过悬浮聚合获得的基础聚合物具有至少37g / g的离心保留能力，并且热表面后交联在100至190℃下进行 。

公开(公告)号：US20160272745A1

公开(公告)日：2016-09-22

申请号：US14442501

申请日：2013-11-11

Applicant: BASF SE

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

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

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.

Abstract translation: 本发明涉及通过聚合包含小于0.3重量％的过硫酸盐和至少0.05重量％的偶氮引发剂的单体溶液的液滴制备吸水性聚合物颗粒的方法，并且所形成的聚合物颗粒的热后处理少 在流化床中超过100℃，持续60至300分钟。

公开(公告)号：US09434802B2

公开(公告)日：2016-09-06

申请号：US14762026

申请日：2014-01-20

Applicant: BASF SE

Inventor： Stephan Bauer ,  Norbert Herfert ,  Lydia König ,  Yvonne Hagen ,  Xiana Romani Fernandez ,  Marcus Schöppler

IPC: C08F4/00 ,  C08F30/04 ,  C08F2/00 ,  C08F20/26 ,  C08F220/06 ,  A61L15/24 ,  A61L15/60 ,  C08F6/00 ,  C08L33/02

CPC classification number: C08F220/06 ,  A61L15/24 ,  A61L15/60 ,  C08F6/005 ,  C08F6/008 ,  C08L33/02 ,  C08L2201/54 ,  C08L2312/00

Abstract: A process for removing residual monomers from water-absorbing polymer particles by thermally aftertreating the water-absorbing polymer particles in a mixer with rotating mixing tools at a temperature of at least 60° C. in the presence of water and of a surfactant.

Abstract translation: 通过在水和表面活性剂的存在下，在具有旋转混合工具的混合器中，在至少60℃的温度下热吸收吸水性聚合物颗粒，从吸水性聚合物颗粒中除去残余单体的方法。

公开(公告)号：US20150322188A1

公开(公告)日：2015-11-12

申请号：US14762026

申请日：2014-01-20

Applicant: BASF SE

Inventor： Stephan Bauer ,  Norbert Herfert ,  Lydia König ,  Yvonne Hagen ,  Xiana Romani Fernandez ,  Marcus Schöppler

IPC: C08F220/06 ,  A61L15/24

CPC classification number: C08F220/06 ,  A61L15/24 ,  A61L15/60 ,  C08F6/005 ,  C08F6/008 ,  C08L33/02 ,  C08L2201/54 ,  C08L2312/00

Abstract: A process for removing residual monomers from water-absorbing polymer particles by thermally aftertreating the water-absorbing polymer particles in a mixer with rotating mixing tools at a temperature of at least 60° C. in the presence of water and of a surfactant.

Abstract translation: 通过在水和表面活性剂的存在下，在具有旋转混合工具的混合器中，在至少60℃的温度下热吸收吸水性聚合物颗粒，从吸水性聚合物颗粒中除去残余单体的方法。