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公开(公告)号：US20230124243A1
公开(公告)日：2023-04-20
申请号：US17909901
申请日：2021-12-23
申请人： LG Chem, Ltd.
发明人： Sung Soo Park , Heechang Woo , Gicheul Kim
IPC分类号： B01J20/26 , C08J3/12 , C08J3/24 , B01J20/32 , C08F220/06
摘要： The present disclosure relates to a method for preparing a super absorbent polymer. More specifically, it relates to a method for preparing a super absorbent polymer capable of improving drying efficiency, reducing a generation amount of refines, and simultaneously improving absorption performance, in particular, absorbing under pressure and permeability of the finally prepared super absorbent polymer by controlling granulation strength of the extruded fine reassembly.
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公开(公告)号：US10711074B2
公开(公告)日：2020-07-14
申请号：US16319057
申请日：2018-01-23
申请人： LG Chem, Ltd.
发明人： Ju Eun Kim , Gi Cheul Kim , Sung Soo Park
IPC分类号： C08F2/44 , C08F220/28 , C08K3/34 , B01J20/26 , C08F236/02
摘要： The present invention relates to a super absorbent polymer and a method for preparing the same. According to the super absorbent polymer and the method for preparing a super absorbent polymer of the present invention, a laponite is contained in a colloidal solution state during polymerization of the monomer composition, and thus achieves an appropriate crosslinking density, thereby contributing to improvement of various physical properties such as a gel strength and a centrifuge retention capacity of the super absorbent polymer.
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公开(公告)号：US20200123281A1
公开(公告)日：2020-04-23
申请号：US16319057
申请日：2018-01-23
申请人： LG Chem, Ltd.
发明人： Ju Eun Kim , Gi Cheul Kim , Sung Soo Park
IPC分类号： C08F2/44 , C08F220/28 , C08F236/02 , C08K3/34 , B01J20/26
摘要： The present invention relates to a super absorbent polymer and a method for preparing the same. According to the super absorbent polymer and the method for preparing a super absorbent polymer of the present invention, a laponite is contained in a colloidal solution state during polymerization of the monomer composition, and thus achieves an appropriate crosslinking density, thereby contributing to improvement of various physical properties such as a gel strength and a centrifuge retention capacity of the super absorbent polymer.
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公开(公告)号：US20180043332A1
公开(公告)日：2018-02-15
申请号：US15557607
申请日：2016-04-14
申请人： LG Chem, Ltd.
发明人： Kum Hyoung Lee , Gi Cheul Kim , Sung Soo Park , Ye Sol Yang
CPC分类号： B01J20/267 , A61L15/60 , B01J20/28007 , B01J20/28085 , B01J20/3021 , C08F2/10 , C08F20/06 , C08F2220/385 , C08J3/075 , C08J3/12 , C08J3/24 , C08J2333/02 , C08K3/34 , C08K3/36 , C08K7/00 , C08K7/26 , C08K2201/003 , C08K2201/005 , C08F220/06 , C08F2222/1013 , C08L33/02
摘要： The present invention relates to superabsorbent polymer having an improved absorption speed through micropores formed inside, and a method for preparing the same.
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公开(公告)号：US20170326528A1
公开(公告)日：2017-11-16
申请号：US15524697
申请日：2015-12-29
申请人： LG Chem, Ltd.
发明人： Sung Soo Park , Gi Cheul Kim , Ju Eun Kim , Hyeon Choi , Hyo Sook Joo , Sung Hyun Park , Hee Jung Choi , Ki Youl Yoon
CPC分类号： B01J20/267 , A61F2013/530481 , B01J20/103 , B01J20/265 , B01J20/28004 , B01J20/28007 , B01J20/28011 , B01J20/28059 , B01J20/28061 , B01J20/28064 , B01J20/3021 , B01J20/3085 , B01J20/3204 , B01J20/3282 , C08J3/075 , C08J3/12 , C08J3/24 , C08J3/245 , C08J2300/14 , C08K9/06
摘要： The present invention relates to a super-absorbent polymer having excellent properties, both centrifugal retention capacity (CRC) and absorption under pressure (AUP) having been improved by introducing a surface crosslinked layer crosslinked by surface-modified inorganic particles, and to a method for preparing the same. The super-absorbent polymer comprises: a base resin powder containing a crosslinked polymer of water-soluble ethylene-based unsaturated monomers having an at least partially neutralized acidic group; and a surface crosslinked layer formed on the base resin powder, wherein inorganic particles may be chemically bound to the crosslinked polymer contained in the surface crosslinked layer, via an oxygen-containing bond or a nitrogen-containing bond.
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公开(公告)号：US09701763B2
公开(公告)日：2017-07-11
申请号：US14917235
申请日：2014-09-29
申请人： LG Chem, Ltd.
发明人： Gi Cheul Kim , Sang Gi Lee , Kyu Pal Kim , Sung Soo Park
IPC分类号： C08F2/46 , C08F2/50 , C08G61/04 , C08F2/10 , C08J3/075 , C08F2/48 , C08F6/00 , C08L101/14 , C08F220/18
CPC分类号： C08F2/50 , C08F2/10 , C08F2/48 , C08F6/008 , C08F220/18 , C08J3/075 , C08L101/14
摘要： This disclosure relates to a method for preparing super absorbent polymer. The method for preparing super absorbent polymer according to the present invention comprises the steps of performing photopolymerization of a monomer composition comprising water soluble ethylene unsaturated monomers, a thermal polymerization initiator and a photopolymerization initiator at a temperature of 30 to 55° C.; performing a thermal polymerization and a photopolymerization at a temperature of 55 to 120° C. to form a hydrogel polymer; and drying the hydrogel polymer. According to the present invention, by comprising two polymerization steps including performing photopolymerization at low temperature and then performing thermal polymerization or photopolymerization at high temperature, super absorbent polymer having improved physical properties may be obtained.
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公开(公告)号：US20160367965A1
公开(公告)日：2016-12-22
申请号：US15035968
申请日：2014-12-10
申请人： LG CHEM, LTD.
发明人： Gi Cheul Kim , Sung Soo Park
CPC分类号： B01J20/267 , B01J20/261 , B01J20/28004 , B01J20/28016 , B01J20/3021 , B01J20/3085 , C08F2/10 , C08F2/48 , C08F220/06 , C08J3/075 , C08J3/12 , C08J3/24 , C08J3/245 , C08J2333/02
摘要： Disclosed herein are a superabsorbent polymer resin comprising agglomerated particles with a size of 450 μm or less, and a method for preparing the same. The superabsorbent polymer resin exhibits significant improvement in absorption rate and permeability.
摘要翻译： 本文公开了包含尺寸为450μm以下的凝集粒子的超吸收性聚合物树脂及其制备方法。 超吸收性聚合物树脂吸收速率和渗透性显着提高。
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公开(公告)号：US10995183B2
公开(公告)日：2021-05-04
申请号：US15743841
申请日：2016-11-04
申请人： LG Chem, Ltd.
发明人： Kum Hyoung Lee , Gi Cheul Kim , Sung Soo Park , Ye Sol Yang , Bo Hyun Seong
IPC分类号： C08J3/075 , C08J9/08 , C08J3/24 , C08K3/36 , C08K5/00 , C08F20/56 , C08L57/10 , C08L33/02 , C08F20/06 , C08F220/06 , C08J9/00 , C08J9/10 , C08L35/00
摘要： The present invention relates to a superabsorbent polymer having an improved adsorption rate and a high bulk density, and a preparation method thereof.
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公开(公告)号：US10258962B2
公开(公告)日：2019-04-16
申请号：US15323142
申请日：2015-07-30
申请人： LG Chem, Ltd.
发明人： Ju Eun Kim , Gi Cheul Kim , Sung Soo Park , Hyeon Choi , Hee Jung Choi , Hyo Sook Joo , Ki Youl Yoon
摘要： The present invention relates to superabsorbent polymer and a method for preparing the same. More specifically, the present invention relates to superabsorbent polymer with improved properties, comprising a dual cross-linking structure derived from alkyleneglycol multifunctional (meth)acrylate and modified nanoclay, and a method for preparing the same. According to the present invention, the modified nanoclay and alkyleneglycol multifunctional (meth)acrylate are used as internal crosslinking agents in the process of preparing superabsorbent polymer, thus contributing to improvement in the cross-linking degree and the properties of superabsorbent polymer.
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公开(公告)号：US11161942B2
公开(公告)日：2021-11-02
申请号：US16485607
申请日：2019-01-25
申请人： LG Chem, Ltd.
发明人： Sung Soo Park , Gicheul Kim , Jeong Kug Cho , Ki Hyun Kim , Yong Seok Choi
摘要： A method for preparing a superabsorbent polymer, and more particularly, a method for preparing a superabsorbent polymer in which it is possible to stably operate a process for preparing a fine powder reassembly while maintaining assembly strength of the fine powder reassembly, wherein a refined ratio is reducible, and an initial absorption speed of the superabsorbent polymer is improved, by adjusting a stirring speed and divisionally adding water to a fine powder in a process for the preparation of the fine powder reassembly, is provided.
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