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公开(公告)号：US11654416B2
公开(公告)日：2023-05-23
申请号：US17193601
申请日：2021-03-05
Applicant: LG Chem, Ltd.
Inventor： Sung Soo Park , Gi Cheul Kim , Ju Eun Kim , Hyeon Choi , Hyo Sook Joo , Sung Hyun Park , Hee Jung Choi , Ki Youl Yoon
IPC: B01J20/26 , C08J3/075 , C08J3/12 , C08K9/06 , C08J3/24 , B01J20/28 , B01J20/10 , B01J20/30 , B01J20/32 , A61F13/53
CPC classification number: B01J20/267 , 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 , C08K9/06 , A61F2013/530481 , C08J2300/14
Abstract: 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：US11504696B2
公开(公告)日：2022-11-22
申请号：US16632789
申请日：2018-08-14
Applicant: LG Chem, Ltd.
Inventor： Kyu Pal Kim , Gi Cheul Kim , Ki Hyun Kim , Seul Ah Lee , Sang Gi Lee
Abstract: The present invention relates to a super absorbent polymer. The super absorbent polymer exhibits excellent initial absorption capacity, and thus can provide a sanitary material such as a diaper or a sanitary napkin which can quickly absorb body fluids and impart a dry and soft touch feeling.
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公开(公告)号：US20210187478A1
公开(公告)日：2021-06-24
申请号：US17193601
申请日：2021-03-05
Applicant: LG Chem, Ltd.
Inventor： Sung Soo Park , Gi Cheul Kim , Ju Eun Kim , Hyeon Choi , Hyo Sook Joo , Sung Hyun Park , Hee Jung Choi , Ki Youl Yoon
IPC: B01J20/26 , C08J3/075 , C08J3/12 , C08K9/06 , C08J3/24 , B01J20/28 , B01J20/10 , B01J20/30 , B01J20/32
Abstract: 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：US10807067B2
公开(公告)日：2020-10-20
申请号：US16093333
申请日：2017-06-15
Applicant: LG Chem, Ltd.
Inventor： Ki Youl Yoon , Hyo Sook Joo , Gi Cheul Kim , Hyeon Choi , Ju Eun Kim
IPC: B01J20/26 , B01J20/10 , B01J20/28 , C08K3/40 , C08K3/24 , C08K7/28 , C08J3/24 , C08J3/12 , C08F20/06 , C08J3/075 , C08L33/02 , B01J20/30
Abstract: The present invention relates to a super absorbent polymer having a controlled degree of internal crosslinking and thereby having simultaneously improved basic absorption capacity and absorbency under pressure, and a method for producing the same. The super absorbent polymer may comprise a base polymer powder including a cross-linked polymer of a monomer containing a water-soluble ethylenically unsaturated compound or its salt; and a surface cross-linked layer that is formed on the base polymer powder and is further cross-linked from the cross-linked polymer, wherein a glass hollow particle having a micron-scale particle size is included in the cross-linked structure of the cross-linked polymer of the base polymer powder.
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公开(公告)号：US10799851B2
公开(公告)日：2020-10-13
申请号：US16092923
申请日：2017-06-15
Applicant: LG Chem, Ltd.
Inventor： Ki Youl Yoon , Hyo Sook Joo , Gi Cheul Kim , Hyeon Choi , Ju Eun Kim
IPC: B01J20/26 , B01J20/10 , B01J20/28 , B01J20/30 , B01J20/32 , C08L33/02 , C08J3/24 , C08K7/28 , C08K3/40 , C08F20/06 , C08F20/66 , C08J3/075 , C08J3/12
Abstract: The present invention relates to a super absorbent polymer having more improved absorbency under pressure and liquid permeability, and a method for producing the same. The super absorbent polymer comprises a base polymer powder including a cross-linked polymer of a monomer containing a water-soluble ethylenically unsaturated compound or its salt; and a surface cross-linked layer that is formed on the base polymer powder and is further cross-linked from the cross-linked polymer, wherein a glass hollow particle having a micron-scale particle size is included on the surface cross-linked layer.
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Patent Agency Ranking
公开(公告)号：US10450428B2
公开(公告)日：2019-10-22
申请号：US15757041
申请日：2016-12-01
Applicant: LG Chem, Ltd.
Inventor： Ye Sol Yang , Gi Cheul Kim , Kum Hyoung Lee
IPC: C08J3/24 , C08J3/075 , B01J20/26 , C08F220/06
Abstract: The present invention relates to a method for preparing superabsorbent polymer. According to the preparation method of the present invention, by maintaining the hydrophilicity of superabsorbent polymer and appropriately controlling the crosslinking density, superabsorbent polymer with excellent properties can be prepared though homogeneous surface crosslinking. Thus, superabsorbent polymer with improved absorption speed can be provided without decrease in absorbency under load.
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公开(公告)号：US20190091656A1
公开(公告)日：2019-03-28
申请号：US16084098
申请日：2017-01-05
Applicant: LG Chem, Ltd.
Inventor： Ju Eun Kim , Gi Cheul Kim , Won Mun Choi , Ki Hyun Kim , Seul Ah Lee , Won Taeck Lim
IPC: B01J20/26 , B01J20/10 , B01J20/28 , B01J20/30 , B01J13/16 , A61L15/60 , A61L15/24 , C08F220/06 , A61L15/18
CPC classification number: B01J20/267 , A61L15/18 , A61L15/24 , A61L15/60 , B01J13/16 , B01J20/103 , B01J20/28021 , B01J20/3021 , B01J20/3085 , C08F2/44 , C08F220/06 , C08J3/075 , C08J3/12 , C08J3/24 , C08J2333/08 , C08K3/00 , C08K3/34 , C08K5/11 , C08L33/08
Abstract: The present invention relates to superabsorbent polymer having excellent centrifuge retention capacity and permeability. The superabsorbent polymer simultaneously exhibits excellent centrifuge retention capacity and permeability, and thus, can fundamentally solve the problems of the existing superabsorbent polymer and technical requirement of the art, and can provide various hygienic goods exhibiting more excellent properties.
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公开(公告)号：US20180244868A1
公开(公告)日：2018-08-30
申请号：US15757055
申请日：2016-03-17
Applicant: LG Chem, Ltd.
Inventor： Seung Mo Lee , Gi Cheul Kim , Ki Hyun Kim , Je Kyun Lee , Jong Hun Kim , Taegyeong Kang
CPC classification number: C08J3/24 , C08F20/06 , C08J3/075 , C08J3/12 , C08J3/245 , C08J2333/02 , C08J2333/08 , C08J2333/10 , C08K3/34 , C08K3/36 , C08K7/26 , C08L33/02
Abstract: The present invention relates to a super absorbent polymer and a production method thereof which enable production of a super absorbent polymer exhibiting a more improved absorption rate while maintaining excellent absorption characteristics.
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公开(公告)号：US09433921B2
公开(公告)日：2016-09-06
申请号：US14911220
申请日：2014-07-17
Applicant: LG Chem, Ltd.
Inventor： Chul Hee Ryu , Gi Cheul Kim
CPC classification number: B01J20/267 , B01J20/28016 , C08F2/10 , C08F6/008 , C08J3/075 , C08J3/12 , C08J3/245 , C08J2333/02 , C08L101/14
Abstract: The present invention relates to a method for preparing a super absorbent polymer. The method for preparing a super absorbent polymer according to the present invention comprises the steps of: carrying out a thermal polymerization or a photopolymerization of a monomer composition including a water-soluble ethylene-based unsaturated monomer and a polymerization initiator to form a hydrogel polymer; drying the hydrogel polymer; pulverizing the dried polymer; mixing a fine powder having a particle diameter of 180 μm or less and a polymer having a particle diameter of 300 μm or more among the pulverized polymer; and adding steam to the mixture to carry out a reassembling. According to the present invention, the super absorbent polymer having a high fine powder aggregation strength can be obtained.
Abstract translation: 本发明涉及一种制备高吸水性聚合物的方法。 本发明的高吸水性聚合物的制备方法，包括以下步骤：进行包含水溶性乙烯系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，形成水凝胶聚合物; 干燥水凝胶聚合物; 粉碎干燥的聚合物; 在粉碎的聚合物中混合粒径为180μm以下的细粉末和粒径为300μm以上的聚合物， 并向混合物中加入蒸汽进行重新组装。 根据本发明，可以获得具有高细粉聚集强度的高吸水性聚合物。
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10.发明授权公开(公告)号：US11865511B2
公开(公告)日：2024-01-09
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
CPC classification number: B01J20/267 , B01J20/103 , B01J20/24 , B01J20/261 , B01J20/28033 , B01J20/28095 , B01J20/3007 , B01J20/3085
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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