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公开(公告)号：US12152125B2
公开(公告)日：2024-11-26
申请号：US17271802
申请日：2020-06-08
Applicant: LG Chem, Ltd.
Inventor： Won Taeck Lim , Wonmun Choi , Yongjin Kim , Gicheul Kim , Ki Hyun Kim
IPC: C08K5/101 , C08F120/06 , C08K5/372
Abstract: The present disclosure relates to a novel cross-linking compound and a polymer using the same. More particularly, the present disclosure relates to a novel cross-linking compound that does not cause thermal decomposition at one end and thus prevents in advance the generation of volatile substances and decomposition products, and a polymer prepared using the same.
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公开(公告)号：US11987550B2
公开(公告)日：2024-05-21
申请号：US16968999
申请日：2019-10-07
Applicant: LG Chem, Ltd.
Inventor： Ji Eun Kim , Won Taeck Lim , Yongjin Kim , Gicheul Kim , Wonmun Choi , Ki Hyun Kim
CPC classification number: C07C67/44 , C08J3/12 , C08J3/243 , C08K5/11 , C08J2433/02
Abstract: The present disclosure relates to a method for preparing a crosslinker compound in which a crosslinker compound capable of using for the production of a super absorbent polymer can be obtained in a higher yield by a simple manner. The crosslinker compound obtained by the above method can be used as a thermally decomposable crosslinker in the process of producing a super absorbent polymer.
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公开(公告)号：US11918978B2
公开(公告)日：2024-03-05
申请号：US16982292
申请日：2019-12-10
Applicant: LG Chem, Ltd.
Inventor： Seul Ah Lee , Gicheul Kim , Dae Woo Nam , Ki Hyun Kim , Jun Kyu Kim , Young Jae Hur
IPC: C08F220/06 , B01J20/26 , C08F2/44 , C08J3/12 , C08J9/14 , C08J9/16 , C08J9/28 , C08L23/02 , C08L25/02 , C08L27/02 , C08L31/04 , C08L33/08 , C08L33/20
CPC classification number: B01J20/261 , C08F2/44 , C08F220/06 , C08J3/12 , C08J9/14 , C08J9/16 , C08L23/02 , C08L25/02 , C08L27/02 , C08L31/04 , C08L33/08 , C08L33/20 , B01J2220/68 , C08L2207/53 , C08L2312/00
Abstract: Provided is a method of preparing a superabsorbent polymer. More specifically, provided is a method of preparing a superabsorbent polymer capable of exhibiting improved initial absorbency and a rapid absorption rate by polymerizing monomers having acidic groups, of which part is neutralized with a basic material including potassium hydroxide, in the presence of an encapsulated foaming agent.
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公开(公告)号：US11613591B2
公开(公告)日：2023-03-28
申请号：US17286212
申请日：2020-08-11
Applicant: LG Chem, Ltd.
Inventor： Kyu Pal Kim , Ui Seok Chung , Gyunhyeok Ahn , Gicheul Kim
IPC: C08F2/22 , C08K3/011 , A61L15/60 , B01J20/26 , B01J20/28 , C08F2/44 , C08F6/14 , C08F220/06 , C08J3/12 , C08J3/24 , C08K3/30 , C08K5/09 , C08K5/5317 , C08F283/06 , C08J3/075 , C08K5/06
Abstract: A method for preparing a super absorbent polymer and a superabsorbent polymer prepared from the same are disclosed herein. In some embodiments, a method includes mixing super absorbent polymer particles, water and an additive form a hydrated super absorbent polymer, wherein the super absorbent polymer particles comprise a base polymer powder including a cross-linked polymer polymerized from a water-soluble ethylenically unsaturated monomer having an acidic group of which at least a part is neutralized, and a surface cross-linked layer formed on the base polymer powder, wherein the surface cross-linked layer is formed by further cross-linking the cross-linked polymer, and wherein the additive including a polyoxyalkylene aliphatic hydrocarbon ether carboxylic acid. The method can appropriately control the water content of the super absorbent polymer by water-addition or the like to suppress crushing or the like during transfer, and also can suppress deterioration of physical properties.
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公开(公告)号：US11578175B2
公开(公告)日：2023-02-14
申请号：US16617049
申请日：2018-11-20
Applicant: LG Chem, Ltd.
Inventor： Seul Ah Lee , Ki Hyun Kim , Gicheul Kim , Wonmun Choi , Won Taeck Lim
Abstract: The present disclosure relates to a preparation method of a super absorbent polymer containing a novel cross-linking agent compound. The preparation method of a super absorbent polymer of the present disclosure can provide a super absorbent polymer exhibiting excellent absorption properties and an excellent deodorizing effect by including a cross-linking agent with a novel structure. Therefore, according to the present disclosure, since a separate additive for a deodorizing property is not required, processability and economic efficiency of the manufacturing process can be improved.
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Patent Agency Ranking
公开(公告)号：US20210379563A1
公开(公告)日：2021-12-09
申请号：US17266826
申请日：2020-06-18
Applicant: LG Chem, Ltd.
Inventor： Tae Yun Kim , Sung Soo Park , Gicheul Kim
Abstract: A method of preparing a super absorbent polymer and a superabsorbent polymer prepared from the same are disclosed herein. In some embodiments, a method includes mixing a mixture comprising fines having a particle diameter of 150 μm or less, a surface-modified inorganic material having a reactive functional group, and water, and drying the mixture to prepare a fine powder reassembly. There may be provided a super absorbent polymer exhibiting excellent absorption properties and mechanical properties such as crushing strength while having uniform particle size distribution by effectively reassembling fines obtained inevitably in the preparation of a super absorbent polymer.
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公开(公告)号：US20210317237A1
公开(公告)日：2021-10-14
申请号：US17285685
申请日：2020-08-11
Applicant: LG Chem, Ltd.
Inventor： Ui Seok Chung , Kyu Pal Kim , Gyunhyeok Ahn , Gicheul Kim
IPC: C08F2/22 , C08F2/44 , C08F6/14 , C08K3/011 , C08J3/24 , C08K5/09 , C08J3/12 , C08F220/06 , C08K5/5317 , C08K3/30 , B01J20/26 , B01J20/28 , A61L15/60
Abstract: The present disclosure relates to a method for preparing a super absorbent polymer that can appropriately control the water content of the super absorbent polymer by hydration or the like to suppress crushing or the like during transfer, and also can suppress deterioration of physical properties, such as production of giant particles and nonuniformity of water content during hydration step.
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公开(公告)号：US10894867B2
公开(公告)日：2021-01-19
申请号：US16478890
申请日：2018-12-03
Applicant: LG Chem, Ltd.
Inventor： Sung Soo Park , Jeong Kug Cho , Yoon Jae Min , Gicheul Kim , Se Won Baek , Kwang Hyon Kim
Abstract: The present invention relates to a manufacturing method of a super absorbent polymer. More specifically, the present invention relates to a manufacturing method of a super absorbent polymer capable of reducing energy, reducing a process cost, and reducing a load on a device, at the time of drying due to reduction in an amount of water used during reassembly of fines, while manufacturing a super absorbent polymer exhibiting a reduced generation amount of re-fines and having excellent physical properties.
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公开(公告)号：US20200247960A1
公开(公告)日：2020-08-06
申请号：US16485607
申请日：2019-01-25
Applicant: LG Chem, Ltd.
Inventor： Sung Soo Park , Gicheul Kim , Jeong Kug Cho , Ki Hyun Kim , Yong Seok Choi
Abstract: 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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公开(公告)号：US20250051542A1
公开(公告)日：2025-02-13
申请号：US18920030
申请日：2024-10-18
Applicant: LG Chem, Ltd.
Inventor： Won Taeck Lim , Wonmun Choi , Yongjin Kim , Gicheul Kim , Ki Hyun Kim
IPC: C08K5/101 , C08F120/06 , C08K5/372
Abstract: The present disclosure relates to a novel cross-linking compound and a polymer using the same. More particularly, the present disclosure relates to a novel cross-linking compound that does not cause thermal decomposition at one end and thus prevents in advance the generation of volatile substances and decomposition products, and a polymer prepared using the same.
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