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公开(公告)号：US20210079141A1
公开(公告)日：2021-03-18
申请号：US16756360
申请日：2019-04-30
Applicant: LG Chem, Ltd.
Inventor： Kiyoul Yoon , Gicheul Kim , Hyeon Choi , Seongkyun Kang , Ju Eun Kim
IPC: C08F220/06 , C08J9/28
Abstract: A method of preparing a superabsorbent polymer sheet by polymerization of monomers in the presence of an encapsulated foaming agent and an inorganic foaming agent is provided. According to the method of preparing the superabsorbent polymer sheet of the present invention, a porous and flexible superabsorbent polymer sheet may be prepared.
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公开(公告)号：US10562992B2
公开(公告)日：2020-02-18
申请号：US16090722
申请日：2017-12-13
Applicant: LG Chem, Ltd.
Inventor： Ki Youl Yoon , Hyo Sook Joo , Gi Cheul Kim , Hyeon Choi , Ju Eun Kim
IPC: C08F20/18 , C08F20/06 , C08F20/56 , C08F2/44 , C08F2/38 , C08K5/103 , C08J3/24 , C08J3/12 , C08J9/28 , C08L71/02 , B01J20/26 , C08F20/08 , C08K3/36 , C08K3/22
Abstract: The present disclosure relates to a preparation method of a porous super absorbent polymer including the steps of preparing a monomer neutralized solution by adding an internal cross-linking agent, an initiator, an inorganic filler, and a nonionic surfactant to a neutralized solution obtained by neutralizing at least 80 mol % of a water soluble ethylene-based unsaturated monomer containing acidic groups; high-shear mixing the monomer neutralized solution; preparing a hydrogel polymer from the high-shear mixed monomer neutralized solution by thermal polymerization or photopolymerization; and preparing a base resin powder by drying, pulverizing, and classifying the hydrogel polymer.
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公开(公告)号：US10141574B2
公开(公告)日：2018-11-27
申请号：US15577099
申请日：2016-09-05
Applicant: LG CHEM, LTD.
Inventor： Houngsik Yoo , Kyungyeon Kang , Jongheon Seol , Jong Won Lee , Dong Hyun Kim , Gyemin Kwon , Jihee Woo , Yelin Kim , Dong Hyun Cho , Sang Hoon Choy , Hyeon Choi
IPC: H01M4/62 , C08C19/02 , C09D109/02 , H01M4/04 , H01M4/36 , C09C1/44 , C08L15/00 , H01M4/13 , C01B32/174 , B82Y30/00 , B82Y40/00
Abstract: The present disclosure relates to a carbon nanotube dispersion including carbon nanotubes, a dispersion medium, and partially hydrogenated nitrile rubber having a residual double bond (RDB) value of 0.5% by weight to 40% by weight calculated according to Mathematical Formula 1, a method for preparing the same, and methods for preparing electrode slurry and an electrode using the same.
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公开(公告)号：US20170361305A1
公开(公告)日：2017-12-21
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
IPC: B01J20/26 , C08J3/24 , B01J20/30 , C08F220/06
CPC classification number: B01J20/267 , B01J20/261 , B01J20/3021 , B01J20/3085 , C08F220/06 , C08J3/075 , C08J3/245 , C08J2333/02 , C08K3/346 , C08K2201/011 , C08L33/02
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：US09803048B2
公开(公告)日：2017-10-31
申请号：US14917898
申请日：2014-10-30
Applicant: LG CHEM, LTD.
Inventor： Seong Kyun Kang , Hyun Ju Cho , Sung-Kyoung Kim , Jong Won Lee , Seung Young Park , Hyeon Choi
CPC classification number: C08G64/34 , B01J31/12 , C08G64/0208
Abstract: An organic zinc catalyst and a preparation method thereof are provided. According to the present invention, the organic zinc catalyst has a smaller thickness and a larger surface area to exhibit more improved activity in polymerization for the preparation of a poly(alkylene carbonate) resin.
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Patent Agency Ranking
公开(公告)号：US11845655B2
公开(公告)日：2023-12-19
申请号：US17993733
申请日：2022-11-23
Applicant: LG CHEM, LTD.
Inventor： Dong Hyun Kim , Houng Sik Yoo , Jin Myung Cha , Gye Min Kwon , Hyun Sik Chae , Dong Hyun Cho , Sang Hoon Choy , Hyeon Choi , Hyung Suk Cho
IPC: C01B32/174 , H01M4/62 , B82Y30/00 , B82Y35/00 , B82Y40/00
CPC classification number: C01B32/174 , H01M4/625 , B82Y30/00 , B82Y35/00 , B82Y40/00 , C01B2202/02 , C01B2202/32
Abstract: The present invention relates to a carbon nanotube dispersion including carbon nanotubes, a polymer dispersant containing an amine, a phenolic compound including two or more aromatic rings, and an aqueous solvent, wherein the polymer dispersant and the phenolic compound including two or more aromatic rings are included in a weight ratio of 100:1 to 100:90, and having low viscosity and a small change of viscosity over time.
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27.发明授权公开(公告)号：US11735714B2
公开(公告)日：2023-08-22
申请号：US16761639
申请日：2018-11-06
Applicant: LG CHEM, LTD.
Inventor： Jong Won Lee , Houng Sik Yoo , Hyeon Choi
CPC classification number: H01M4/133 , H01M4/139 , H01M4/625 , H01M4/664 , H01M10/052 , H01M2004/027
Abstract: A negative electrode slurry composition including (1) clay particles having, a plate-type structure and an average particle diameter (D50) of 10 nm to 2 μm, (2) carboxymethylcellulose (CMC), (3) a negative electrode active material, and (4) an aqueous solvent, wherein a weight ratio of the carboxymethylcellulose and the clay particles is 9.5:0.5 to 4:6. The negative electrode slurry composition is capable of solving problems due to the deterioration of storage stability and dispersibility of solids in a negative electrode slurry composition having a high solid content.
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公开(公告)号：US20230089009A1
公开(公告)日：2023-03-23
申请号：US17802796
申请日：2021-09-07
Applicant: LG Chem, Ltd.
Inventor： Kiyoul Yoon , Seongkyun Kang , Yu Jin Kim , Gicheul Kim , Hyeon Choi , Se Yeol Park
Abstract: The present disclosure relates to a polymer film, a preparation method of the same, and a polymer film laminate. Specifically, it relates to a new type of polymer film, which is thin and exhibits excellent absorption performance while having excellent flexibility and mechanical properties. In addition, the polymer film is free from scattering or leaking, and does not require an auxiliary substance such as pulp, so that products can be made thinner and the manufacturing process and costs may be reduced. In addition, the present disclosure also relates to a preparation method of the above-described polymer film, and a polymer film laminate including the new type of polymer film.
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公开(公告)号：US11467452B2
公开(公告)日：2022-10-11
申请号：US16633289
申请日：2018-07-27
Applicant: LG Chem, Ltd.
Inventor： Han Min Seo , Ji Young Hwang , Hyeon Choi , Seung Heon Lee , Dong Hyun Oh , Jung Sun You , Cheol Ock Song , Nam Seok Bae
IPC: G02F1/1339
Abstract: A substrate on which spacers are disposed in a certain arrangement state and an optical device using such a substrate are provided. A plurality of spacers are irregularly disposed on a substrate depending on a predetermined rule, so that overall uniform optical characteristics can be ensured without causing a so-called moire phenomenon or the like, while the spacers maintain the uniform cell gap in the construction of the optical device.
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公开(公告)号：US11186668B2
公开(公告)日：2021-11-30
申请号：US16756360
申请日：2019-04-30
Applicant: LG Chem, Ltd.
Inventor： Kiyoul Yoon , Gicheul Kim , Hyeon Choi , Seongkyun Kang , Ju Eun Kim
IPC: C08J9/28 , C08F220/06
Abstract: A method of preparing a superabsorbent polymer sheet by polymerization of monomers in the presence of an encapsulated foaming agent and an inorganic foaming agent is provided. According to the method of preparing the superabsorbent polymer sheet of the present invention, a porous and flexible superabsorbent polymer sheet may be prepared.
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