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11.发明申请公开(公告)号：US20220362743A1
公开(公告)日：2022-11-17
申请号：US17875931
申请日：2022-07-28
Applicant: LG Chem, Ltd.
Inventor： Ki Youl Yoon , Gi Cheul Kim , Hyeon Choi , Hyo Sook Joo , Ju Eun Kim
Abstract: The present disclosure relates to a preparation method for a super absorbent polymer sheet and a super absorbent polymer sheet prepared therefrom. According to the preparation method of the present disclosure, a porous super absorbent polymer sheet can be prepared by a simplified process.
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公开(公告)号：US11459430B2
公开(公告)日：2022-10-04
申请号：US16083235
申请日：2017-06-21
Applicant: LG Chem, Ltd.
Inventor： Ki Youl Yoon , Hyo Sook Joo , Gi Cheul Kim , Hyeon Choi , Ju Eun Kim
IPC: C08J3/24 , C08K7/00 , C08K9/04 , C08F20/66 , C08F6/00 , C08F220/06 , C08L33/02 , C08F2/44 , C08F292/00 , C08J3/12 , B01J20/26 , C08K3/34
Abstract: The present invention relates to a method for preparing superabsorbent polymer that introduces a plate type and rod-shaped clay additive in the superabsorbent polymer, and thus exhibits basic properties of a superabsorbent polymer equivalent to or much better than the existing superabsorbent polymer through multi-crosslinking, and particularly, can improve absorbency under pressure (AUP), and a superabsorbent polymer obtained thereby.
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公开(公告)号：US11198768B2
公开(公告)日：2021-12-14
申请号：US15755325
申请日：2016-03-17
Applicant: LG Chem, Ltd.
Inventor： Ju Eun Kim , Gi Cheul Kim , Se Yeol Park , Ki Hyun Kim
IPC: C08F2/46 , C08F2/50 , C08G61/04 , C08J3/24 , C08F20/06 , C08J3/075 , A61L15/60 , C08K7/22 , C08K3/34 , C08F2/10 , C08K3/36
Abstract: The present invention relates to a method for preparing superabsorbent polymer. According to the preparation method of the present invention, the surface penetration depth of a surface crosslinking agent can be appropriately controlled, and superabsorbent polymer with excellent properties can be prepared though homogeneous surface crosslinking. Thus, superabsorbent polymer with improved absorption property can be provided without deterioration of absorbency under load.
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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
Applicant: LG Chem, Ltd.
Inventor： Kum Hyoung Lee , Gi Cheul Kim , Sung Soo Park , Ye Sol Yang , Bo Hyun Seong
IPC: 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
Abstract: 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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15.发明申请公开(公告)号：US20200164345A1
公开(公告)日：2020-05-28
申请号：US16630292
申请日：2018-08-17
Applicant: LG Chem, Ltd.
Inventor： Ki Youl Yoon , Gi Cheul Kim , Hyeon Choi , Hyo Sook Joo , Ju Eun Kim
Abstract: The present disclosure relates to a preparation method for a super absorbent polymer sheet and a super absorbent polymer sheet prepared therefrom. According to the preparation method of the present disclosure, a porous super absorbent polymer sheet can be prepared by a simplified process.
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Patent Agency Ranking
16.发明申请公开(公告)号：US20190315930A1
公开(公告)日：2019-10-17
申请号：US16341804
申请日：2018-06-21
Applicant: LG Chem, Ltd.
Inventor： Taehee Kim , Sewoo Yang , Ji Young Hwang , Gi Cheul Kim
Abstract: The present invention relates to a method for preparing a superabsorbent polymer that progresses dry mixing of fine powders and a specific powder type of polymer binder when reassembling fine powders generated during the preparation process of a superabsorbent polymer, and thus obviates the necessity for a moisture drying process after reassembling fine powders, thereby reducing thermal losses, improving productivity, and obtaining a superabsorbent polymer having excellent basic absorption properties, and a superabsorbent polymer prepared by the method.
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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
Applicant: LG Chem, Ltd.
Inventor： Ju Eun Kim , Gi Cheul Kim , Sung Soo Park , Hyeon Choi , Hee Jung Choi , Hyo Sook Joo , Ki Youl Yoon
Abstract: 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：US20190077927A1
公开(公告)日：2019-03-14
申请号：US16083235
申请日：2017-06-21
Applicant: LG Chem, Ltd.
Inventor： Ki Youl Yoon , Hyo Sook Joo , Gi Cheul Kim , Hyeon Choi , Ju Eun Kim
Abstract: The present invention relates to a method for preparing superabsorbent polymer that introduces a plate type and rod-shaped clay additive in the superabsorbent polymer, and thus exhibits basic properties of a superabsorbent polymer equivalent to or much better than the existing superabsorbent polymer through multi-crosslinking, and particularly, can improve absorbency under pressure (AUP), and a superabsorbent polymer obtained thereby.
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公开(公告)号：US20180244867A1
公开(公告)日：2018-08-30
申请号：US15755325
申请日：2016-03-17
Applicant: LG Chem, Ltd.
Inventor： Ju Eun Kim , Gi Cheul Kim , Se Yeol Park , Ki Hyun Kim
CPC classification number: C08J3/24 , A61L15/60 , C08F2/10 , C08F2/50 , C08F20/06 , C08J3/075 , C08J3/245 , C08J2333/02 , C08K3/346 , C08K3/36 , C08K7/22
Abstract: The present invention relates to a method for preparing superabsorbent polymer. According to the preparation method of the present invention, the surface penetration depth of a surface crosslinking agent can be appropriately controlled, and superabsorbent polymer with excellent properties can be prepared though homogeneous surface crosslinking. Thus, superabsorbent polymer with improved absorption property can be provided without deterioration of absorbency under load.
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20.发明申请METHOD OF PREPARING A SUPER ABSORBENT POLYMER AND A SUPER ABSORBENT POLYMER PREPARED THEREFROM 有权制备超吸收聚合物的方法和其制备的超吸收聚合物公开(公告)号：US20150259522A1
公开(公告)日：2015-09-17
申请号：US14359876
申请日：2013-11-15
Applicant: LG CHEM, LTD.
Inventor： Yong Hun Lee , Kyu Pal Kim , Chang Sun Han , Gi Cheul Kim , Chul Hee Ryu
IPC: C08L33/08
CPC classification number: C08L33/08 , A61L15/60 , B01J20/261 , B01J20/28004 , B01J20/28047 , B01J20/3021 , B01J2220/68 , C08F220/06 , C08J3/075 , C08J3/245 , C08J2333/08 , C08J2433/08 , C08L2205/025 , C08L23/04 , C08F2222/1013
Abstract: A method of preparing a super absorbent polymer (SAP) includes the steps of preparing a first hydrogel polymer by carrying out a thermal polymerization or photo polymerization of a monomer composition including a water-soluble ethylene-based unsaturated monomer and a polymerization initiator; preparing a second hydrogel polymer by carrying out a thermal polymerization or photo polymerization of a monomer composition including a water-soluble ethylene-based unsaturated monomer and a polymerization initiator; drying and milling the first hydrogel polymer and distributing the first hydrogel polymer into a fine powder having a particle diameter below 150 μm and a base resin having a particle diameter of 150 μm to 850 μm; fabricating a reassembled body of the fine powder by mixing the fine powder and the second hydrogel polymer; and mixing the reassembled body of the fine powder with the first hydrogel polymer, and drying and milling the same.
Abstract translation: 制备高吸收性聚合物（SAP）的方法包括通过进行包含水溶性乙烯类不饱和单体和聚合引发剂的单体组合物的热聚合或光聚合来制备第一水凝胶聚合物的步骤; 通过进行包含水溶性乙烯类不饱和单体和聚合引发剂的单体组合物的热聚合或光聚合制备第二水凝胶聚合物; 干燥和研磨第一水凝胶聚合物并将第一水凝胶聚合物分散成粒径低于150μm的细粉末和粒径为150μm至850μm的基础树脂; 通过混合细粉末和第二水凝胶聚合物制造细粉末的重新组装体; 并将重新组装的细粉末体与第一水凝胶聚合物混合，并干燥和研磨该细粉末。
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