公开(公告)号：US20230067846A1

公开(公告)日：2023-03-02

申请号：US17796828

申请日：2021-03-23

Applicant: LG Chem, Ltd.

Inventor： Kiyoul Yoon ,  Seongkyun Kang ,  Yu Jin Kim ,  Gicheul Kim ,  Hyeon Choi ,  Se Yeol Park

IPC: B01J20/26 ,  C08F20/06 ,  C08J5/18 ,  B01J20/24 ,  B01J20/12 ,  B01J20/28 ,  B01J20/30 ,  B29C39/00 ,  B29C39/38 ,  B29C55/00 ,  B29C55/02

Abstract: The present disclosure relates to a super absorbent polymer film and a preparation method of the same. Specifically, it relates to a new type of super absorbent polymer film, which is thin and exhibits excellent absorption performance and high tensile strength. In addition, the super absorbent polymer film of the present disclosure 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.

公开(公告)号：US11581531B2

公开(公告)日：2023-02-14

申请号：US17052301

申请日：2019-06-07

Applicant: LG CHEM, LTD.

Inventor： Dong Hyun Kim ,  Houng Sik Yoo ,  Hyeon Choi

IPC: H01M4/485 ,  H01M4/131 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02

Abstract: A negative electrode slurry and a method of preparing the same. The negative electrode slurry includes lithium titanium oxide (LTO), a carboxylic acid-containing polymer dispersant, a binder, and an aqueous solvent. The carboxylic acid-containing polymer dispersant has a weight average molecular weight (Mw) of 2,500 g/mol to 500,000 g/mol and is present in an amount of 1.5 parts by weight to 20 parts by weight with respect to 100 parts by weight of the lithium titanium oxide.

公开(公告)号：US11377395B2

公开(公告)日：2022-07-05

申请号：US16646951

申请日：2018-09-13

Applicant: LG CHEM, LTD.

Inventor： Mihee Kim ,  Hyo Sook Joo ,  Eun Kyoung Park ,  Hyeon Choi ,  Ki Youl Yoon ,  Joon Seok Lee

IPC: C05G5/30 ,  C05G5/12 ,  C05G3/50

Abstract: The present invention relates to a controlled-release type fertilizer with remarkably decreased floating property, comprising a granular fertilizer core; a coating layer (shell) formed on the surface of the granular fertilizer core, and comprising olefin-based resin; and additives attached on the coating layer, and comprising polyoxyethylene alkyl(-aryl)ether.

公开(公告)号：US11370719B2

公开(公告)日：2022-06-28

申请号：US16646959

申请日：2018-09-13

Applicant: LG CHEM, LTD.

Inventor： Mihee Kim ,  Hyosook Joo ,  Eun Kyoung Park ,  Hyeon Choi ,  Kiyoul Yoon ,  Joon Seok Lee

IPC: C05G3/40 ,  C05G5/12 ,  C05G5/30

Abstract: The present invention relates to a controlled-release type fertilizer with outstandingly decreased floating property, comprising a granular fertilize core; a coating layer (shell) formed on the surface of the granular fertilizer core, and comprising olefin-based resin; and additives attached on the coating layer, and comprising ethylene oxide-propylene oxide-ethylene oxide(EO-PO-EO) or propylene oxide-ethylene oxide-propylene oxide(PO-EO-PO) tri-block copolymer.

公开(公告)号：US11278867B2

公开(公告)日：2022-03-22

申请号：US16756642

申请日：2019-04-30

Applicant: LG Chem, Ltd.

Inventor： Kiyoul Yoon ,  Hyeon Choi ,  Gicheul Kim ,  Seongkyun Kang ,  Ju Eun Kim

IPC: B01J20/26 ,  B01J20/28 ,  B01J20/30

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 having an excellent initial absorption rate may be prepared.

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.

公开(公告)号：US10882989B2

公开(公告)日：2021-01-05

申请号：US14904930

申请日：2014-07-15

Applicant: LG CHEM, LTD.

Inventor： Jong Won Lee ,  Han Na Lee ,  Jin Young Ryu ,  Woo Sung Kim ,  Eun Joo Choi ,  Hyeon Choi

IPC: C08L33/12 ,  B32B27/08 ,  G02B1/14 ,  B32B27/30 ,  C08F212/14

Abstract: Provided are a resin blend, a copolymer, a pellet, a method of manufacturing a resin molded article using the same, and a resin molded article. The exemplary resin blend may provide a protective film for a polarizing plate having an excellent adhesive strength to a polarizer. In addition, when the resin blend is used, additional primer coating on the protective film for a polarizing plate may be omitted, and an excellent adhesive strength to the polarizer may be exhibited, thereby reducing production time and cost and increasing productivity.

公开(公告)号：US10822498B2

公开(公告)日：2020-11-03

申请号：US15760460

申请日：2016-08-26

Applicant: LG Chem, Ltd.

Inventor： Gyemin Kwon ,  Houngsik Yoo ,  Hye Lim Sim ,  Byoung Hoon Ahn ,  Jong Won Lee ,  Dong Hyun Kim ,  Sang Hoon Choy ,  Hyeon Choi

IPC: C09C1/56 ,  C09C1/48 ,  H01B1/24 ,  H01M4/62 ,  C08K3/04 ,  C08L15/00 ,  C09C3/10

Abstract: The present disclosure relates to a carbon black dispersion solution comprising carbon black, 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 the following Mathematical Formula 1, wherein dispersed particle diameters of the carbon black have particle size distribution D50 of 0.1 μm to 2 μm, a method for preparing the same, and methods for preparing electrode slurry and an electrode using the same.

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.

公开(公告)号：US20200324270A1

公开(公告)日：2020-10-15

申请号：US16756642

申请日：2019-04-30

Applicant: LG Chem, Ltd.

Inventor： Kiyoul Yoon ,  Hyeon Choi ,  Gicheul Kim ,  Seongkyun Kang ,  Ju Eun Kim

IPC: B01J20/26 ,  B01J20/28 ,  B01J20/30

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 having an excellent initial absorption rate may be prepared.