公开(公告)号：US20170266336A1

公开(公告)日：2017-09-21

申请号：US15455739

申请日：2017-03-10

Applicant: BASF SE

Inventor： Matthew Gande ,  Kristine Hartnagel ,  Katarzyna Dobrosielska-Oura ,  Felicitas Leonie Sperling

IPC: A61L15/60 ,  B01J20/26 ,  A61L15/24 ,  A61L15/18 ,  C07D211/94 ,  A61L15/20

CPC classification number: A61L15/60 ,  A61L15/20 ,  A61L15/42 ,  B01J20/267 ,  C07D211/94

Abstract: Superabsorbents comprising at least one compound of formula (I) or salt thereof, where R1 and R2 independently are H, organic or functional substituents, exhibit improved stability against discolouration.

公开(公告)号：US20200060897A1

公开(公告)日：2020-02-27

申请号：US16482045

申请日：2018-02-12

Applicant: BASF SE

Inventor： Thomas Daniel ,  Christophe Bauduin ,  Katrin Baumann ,  Katarzyna Dobrosielska-Oura

IPC: A61F13/537 ,  A61L15/60

Abstract: A fluid-absorbent article includes an upper liquid-pervious layer (A), a lower liquid-impervious layer (B), a fluid-absorbent core (C) between (A) and (B) including at least 60% by weight of non-surface postcrosslinked fluid-absorbent polymer particles and not more than 40% by weight of fibrous material, based on the sum of non-surface postcrosslinked fluid-absorbent polymer particles and fibrous material. An acquisition-distribution layer (D) between (A) and (C) includes at least 90% by weight of synthetic fibers and not more than 10% by weight of cellulose based fibers, based on the sum of synthetic fibers and cellulose based fibers. The basis weight of the acquisition-distribution layer (D) is at least 70 gsm. The fluid-absorbent polymer particles have a saline flow conductivity (SFC) of less than 5×10−7 cm3s/g and an AUHL of less than 15 g/g. Preferably the acquisition-distribution layer (D) is a non-woven web including a three dimensional network of fibers.

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：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：US11911249B2

公开(公告)日：2024-02-27

申请号：US16483645

申请日：2018-01-29

Applicant: BASF SE

Inventor： Thomas Daniel ,  Christophe Bauduin ,  Katrin Baumann ,  Katarzyna Dobrosielska-Oura

IPC: A61F13/53 ,  A61F13/15 ,  A61F13/537

CPC classification number: A61F13/53 ,  A61F13/537 ,  A61F2013/15406 ,  A61F2013/1556 ,  A61F2013/15959 ,  A61F2013/15967 ,  A61F2013/15983 ,  A61F2013/530591 ,  A61F2013/530613 ,  A61F2013/5307 ,  A61F2013/530788

Abstract: Provided herein are fluid-absorbent articles, fluid absorbent cores, and fluid-absorbent mixtures with improved properties, especially rewet performance and liquid acquisition. The fluid-absorbent article includes (A) an upper liquid-pervious sheet, (B) a lower liquid-impervious sheet, (C) a fluid-absorbent core including from 60 to 20% by weight fibrous material and from 40 to 80% by weight of at least a first type of water-absorbent polymer particles, (G) and at least a second type of water-absorbent polymer particles (H) based on the sum of water-absorbent polymer particles and fibrous material, (D) an optional acquisition-distribution layer (D) between (A) and (C), (F) other optional components, wherein the first type of water absorbent polymer particles (G) of the fluid-absorbent core (C) have a SFC of at least 20×10−7 cm3·s/g, and wherein the at least second type of water-absorbent polymer particles (H) of the fluid-absorbent core have a sphericity of at least 0.80.

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：US12042365B2

公开(公告)日：2024-07-23

申请号：US16482045

申请日：2018-02-12

Applicant: BASF SE

Inventor： Thomas Daniel ,  Christophe Bauduin ,  Katrin Baumann ,  Katarzyna Dobrosielska-Oura

IPC: A61F13/15 ,  A61F13/537 ,  A61L15/60 ,  A61F13/53

CPC classification number: A61F13/537 ,  A61L15/60 ,  A61F2013/530708

Abstract: A fluid-absorbent article includes an upper liquid-pervious layer (A), a lower liquid-impervious layer (B), a fluid-absorbent core (C) between (A) and (B) including at least 60% by weight of non-surface postcrosslinked fluid-absorbent polymer particles and not more than 40% by weight of fibrous material, based on the sum of non-surface postcrosslinked fluid-absorbent polymer particles and fibrous material. An acquisition-distribution layer (D) between (A) and (C) includes at least 90% by weight of synthetic fibers and not more than 10% by weight of cellulose based fibers, based on the sum of synthetic fibers and cellulose based fibers. The basis weight of the acquisition-distribution layer (D) is at least 70 gsm. The fluid-absorbent polymer particles have a saline flow conductivity (SFC) of less than 5×10−7 cm3s/g and an AUHL of less than 15 g/g. Preferably the acquisition-distribution layer (D) is a non-woven web including a three dimensional network of fibers.

公开(公告)号：US10208170B2

公开(公告)日：2019-02-19

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 ,  A61L15/22 ,  A61L15/42 ,  B01J20/26 ,  B01J20/28 ,  C08F220/06 ,  C08J9/00 ,  A61L15/60 ,  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：US20170312148A1

公开(公告)日：2017-11-02

申请号：US15520092

申请日：2015-10-14

Applicant: BASF SE

Inventor： Katarzyna Dobrosielska-Oura ,  Christophe Bauduin ,  Markus Tönnessen ,  Mark Elliott ,  Markus Vogt ,  Thomas Daniel ,  Norbert Herfert ,  Marc Haefner ,  Alexandra Faubel

IPC: A61F13/537 ,  A61L15/60 ,  A61L15/22 ,  A61F13/539 ,  A61F13/15 ,  A61F13/534 ,  A61F13/53

CPC classification number: A61F13/53717 ,  A61F13/15203 ,  A61F13/53 ,  A61F13/539 ,  A61F2013/15406 ,  A61F2013/530591 ,  A61F2013/5349 ,  A61F2013/5395 ,  A61L15/225 ,  A61L15/60

Abstract: The present invention relates to a fluid-absorbent article, comprising a fluid-absorbent core, comprising from 0 to 90% by weight fibrous material and from 10 to 100% by weight water-absorbent polymer particles having a mean sphericity (SPHT) from 0.8 to 0.95, based on the sum of water-absorbent polymer particles and fibrous material;and an acquisition-distribution layer between having a three dimensional apertured structure having a femal side (5) and a male side (6), wherein the femal side presents a multiplicity of openings extending in the form of through holes in the direction of a lower surface of the same structure being the male side, wherein the quantity of the water absorbent polymer particles within the fluid absorbent core is at least 3 g.