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1.发明申请WATER-ABSORBING POLYMER PARTICLES WITH HIGH FREE SWELL RATE AND HIGH PERMEABILITY 有权具有高自由率和高渗透性的吸水聚合物颗粒公开(公告)号：US20160009889A1
公开(公告)日：2016-01-14
申请号：US14861409
申请日：2015-09-22
Applicant: BASF SE
Inventor： Matthias Weismantel , Ulrich Riegel , Thomas Gieger , Markus Braun , Michael A. Mitchell
IPC: C08J9/18
CPC classification number: C08J9/18 , C08J9/06 , C08J9/14 , C08J9/16 , C08J2300/14 , C08J2333/08 , C08J2333/14
Abstract: A process for producing water-absorbing polymer particles with high free swell rate and high permeability by polymerization of an aqueous monomer solution or suspension to give an aqueous polymer gel, wherein a thermal blowing agent essentially free of inorganic acid anions is mixed into the polymer gel, and subsequent thermal drying of the polymer gel.
Abstract translation: 一种生产具有高自由溶胀速率和高渗透性的吸水聚合物颗粒的方法，其通过聚合单体水溶液或悬浮液得到聚合物水凝胶，其中将基本上不含无机酸阴离子的热发泡剂混合到聚合物凝胶 ，随后聚合物凝胶的热干燥。
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公开(公告)号：US20220235152A1
公开(公告)日：2022-07-28
申请号：US17717598
申请日：2022-04-11
Applicant: BASF SE
Inventor： Kristine Hartnagel , Thomas Gieger , Thomas Daniel , Marcus Schroeder , Michelle Morano , Nathaniel Troy Greene
IPC: C08F2/22 , C08K3/011 , A61L15/60 , B01J20/26 , B01J20/28 , C08F2/01 , C08F2/44 , C08F6/14 , C08F220/06 , C08J3/12 , C08J3/24 , C08K3/30 , C08K5/5317
Abstract: A process for producing superabsorbents, comprising polymerization of a monomer solution and thermal surface postcrosslinking, wherein the monomer solution comprises at least 0.75% by weight of a hydroxyphosphonic acid or salts thereof, calculated on the basis of the total amount of monomer used, and at least 0.09% by weight of aluminum cations, calculated on the basis of the total amount of polymer particles used, is added to the polymer particles before, during or after the thermal surface postcrosslinking.
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3.发明授权Water-absorbing polymer particles with high free swell rate and high permeability 有权具有高自由溶胀率和高渗透性的吸水聚合物颗粒公开(公告)号：US09587081B2
公开(公告)日：2017-03-07
申请号：US14861409
申请日：2015-09-22
Applicant: BASF SE
Inventor： Matthias Weismantel , Ulrich Riegel , Thomas Gieger , Markus Braun , Michael A. Mitchell
CPC classification number: C08J9/18 , C08J9/06 , C08J9/14 , C08J9/16 , C08J2300/14 , C08J2333/08 , C08J2333/14
Abstract: A process for producing water-absorbing polymer particles with high free swell rate and high permeability by polymerization of an aqueous monomer solution or suspension to give an aqueous polymer gel, wherein a thermal blowing agent essentially free of inorganic acid anions is mixed into the polymer gel, and subsequent thermal drying of the polymer gel.
Abstract translation: 一种生产具有高自由溶胀速率和高渗透性的吸水聚合物颗粒的方法，其通过聚合单体水溶液或悬浮液得到聚合物水凝胶，其中将基本上不含无机酸阴离子的热发泡剂混合到聚合物凝胶 ，随后聚合物凝胶的热干燥。
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公开(公告)号：US10226753B2
公开(公告)日：2019-03-12
申请号：US15746492
申请日：2016-07-21
Applicant: BASF SE
Inventor： Norbert Herfert , Wanthip Poomsuwan , Thomas Gieger
IPC: B01J20/26 , A61L15/60 , C08F2/01 , C08F2/10 , C08F220/06 , C09D183/08 , C08J3/12 , C08L33/02 , A61L15/22 , B01J19/06 , B01J20/30 , C08J3/24 , C08G77/28
Abstract: The invention relates to a process for producing superabsorbents, comprising the preparation of partly neutralized acrylic acid by the steps (i) preparing an over-neutralized acrylic acid having a degree of neutralization of at least 100.1 mol-% by mixing of an acrylic acid 1 and a base and (ii) preparing a neutralized acrylic acid having a degree of neutralization from 50 to 85 mol-% by mixing of the over-neutralized acrylic acid and an acrylic acid 2, wherein the content of dimeric acrylic acid in the acrylic acid 2 is lower than the content of dimeric acrylic acid in the acrylic acid 1.
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公开(公告)号：US20180200691A1
公开(公告)日：2018-07-19
申请号：US15746492
申请日：2016-07-21
Applicant: BASF SE
Inventor： Norbert Herfert , Wanthip Poomsuwan , Thomas Gieger
CPC classification number: B01J20/267 , A61L15/225 , A61L15/60 , B01J19/06 , B01J20/261 , B01J20/3085 , B01J2219/00076 , B01J2219/0015 , C08F2/01 , C08F2/10 , C08F220/06 , C08G77/28 , C08J3/12 , C08J3/247 , C08J2333/02 , C08L33/02 , C09D183/08
Abstract: The invention relates to a process for producing superabsorbents, comprising the preparation of partly neutralized acrylic acid by the steps (i) preparing an over-neutralized acrylic acid having a degree of neutralization of at least 100.1 mol-% by mixing of an acrylic acid 1 and a base and (ii) preparing a neutralized acrylic acid having a degree of neutralization from 50 to 85 mol-% by mixing of the over-neutralized acrylic acid and an acrylic acid 2, wherein the content of dimeric acrylic acid in the acrylic acid 2 is lower than the content of dimeric acrylic acid in the acrylic acid 1.
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Patent Agency Ranking
公开(公告)号：US12110351B2
公开(公告)日：2024-10-08
申请号：US17717598
申请日：2022-04-11
Applicant: BASF SE
Inventor： Kristine Hartnagel , Thomas Gieger , Thomas Daniel , Marcus Schroeder , Michelle Morano , Nathaniel Troy Greene
IPC: C08F2/22 , A61L15/60 , B01J20/26 , B01J20/28 , C08F2/01 , C08F2/44 , C08F6/14 , C08F220/06 , C08J3/12 , C08J3/24 , C08K3/011 , C08K3/30 , C08K5/5317
CPC classification number: C08F2/22 , A61L15/60 , B01J20/261 , B01J20/28047 , C08F2/01 , C08F2/44 , C08F6/14 , C08F220/06 , C08J3/12 , C08J3/245 , C08K3/011 , C08K3/30 , C08K5/5317 , B01J2220/68 , C08J2333/02 , C08K2003/3081
Abstract: A process for producing superabsorbents, comprising polymerization of a monomer solution and thermal surface postcrosslinking, wherein the monomer solution comprises at least 0.75% by weight of a hydroxyphosphonic acid or salts thereof, calculated on the basis of the total amount of monomer used, and at least 0.09% by weight of aluminum cations, calculated on the basis of the total amount of polymer particles used, is added to the polymer particles before, during or after the thermal surface postcrosslinking.
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公开(公告)号：US20210301040A1
公开(公告)日：2021-09-30
申请号：US16321638
申请日：2017-08-01
Applicant: BASF SE
Inventor： Kristine Hartnagel , Thomas Gieger , Thomas Daniel , Marcus Schroeder , Michelle Morano , Nathaniel Troy Greene
IPC: C08F2/22 , A61L15/60 , C08F2/01 , C08F2/44 , C08K3/011 , C08J3/24 , C08J3/12 , C08F220/06 , C08K5/5317 , C08K3/30 , B01J20/28 , B01J20/26 , C08F6/14
Abstract: A process for producing superabsorbents, comprising polymerization of a monomer solution and thermal surface postcrosslinking, wherein the monomer solution comprises at least 0.75% by weight of a hydroxyphosphonic acid or salts thereof, calculated on the basis of the total amount of monomer used, and at least 0.09% by weight of aluminum cations, calculated on the basis of the total amount of polymer particles used, is added to the polymer particles before, during or after the thermal surface postcrosslinking.
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公开(公告)号：US09822203B2
公开(公告)日：2017-11-21
申请号：US14763185
申请日：2014-01-20
Applicant: BASF SE
Inventor： Monica Haag , Roland Krauss , Thomas Gieger , Volker Klock , Matthias Weismantel
IPC: C08F2/10 , C08F222/10 , C08F6/00 , C08F8/00 , C08J3/24 , A61L15/60 , C08F220/06
CPC classification number: C08F222/1006 , A61L15/60 , C08F2/10 , C08F220/06 , C08J3/245 , C08J2333/02 , C08F2222/1026 , C08L33/08
Abstract: A process for producing water-absorbing polymer particles having high free swell rate and high centrifuge retention capacity with simultaneously high permeability of the swollen gel bed by polymerization of an aqueous monomer solution in a polymerization reactor having at least two shafts (kneaders) which rotate in an axially parallel manner, subsequent extrusion at high temperatures and thermal surface postcrosslinking.
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公开(公告)号：US09738769B2
公开(公告)日：2017-08-22
申请号：US13763029
申请日：2013-02-08
Applicant: BASF SE
Inventor： Matthias Weismantel , Ulrich Riegel , Thomas Gieger , Markus Braun , Michael A. Mitchell
CPC classification number: C08J9/18 , C08J9/06 , C08J9/14 , C08J9/16 , C08J2300/14 , C08J2333/08 , C08J2333/14
Abstract: A process for producing water-absorbing polymer particles with high free swell rate and high permeability by polymerization of an aqueous monomer solution or suspension to give an aqueous polymer gel, wherein a thermal blowing agent essentially free of inorganic acid anions is mixed into the polymer gel, and subsequent thermal drying of the polymer gel.
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公开(公告)号：US11325990B2
公开(公告)日：2022-05-10
申请号：US16321638
申请日：2017-08-01
Applicant: BASF SE
Inventor： Kristine Hartnagel , Thomas Gieger , Thomas Daniel , Marcus Schroeder , Michelle Morano , Nathaniel Troy Greene
IPC: C08F2/22 , C08K3/011 , A61L15/60 , B01J20/26 , B01J20/28 , C08F2/01 , C08F2/44 , C08F6/14 , C08F220/06 , C08J3/12 , C08J3/24 , C08K3/30 , C08K5/5317
Abstract: A process for producing superabsorbents, comprising polymerization of a monomer solution and thermal surface postcrosslinking, wherein the monomer solution comprises at least 0.75% by weight of a hydroxyphosphonic acid or salts thereof, calculated on the basis of the total amount of monomer used, and at least 0.09% by weight of aluminum cations, calculated on the basis of the total amount of polymer particles used, is added to the polymer particles before, during or after the thermal surface postcrosslinking.
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