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.

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：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：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：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.

公开(公告)号：US10744483B2

公开(公告)日：2020-08-18

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.

公开(公告)号：US20190176125A1

公开(公告)日：2019-06-13

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 ,  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：US20190085104A1

公开(公告)日：2019-03-21

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 ,  C08F20/08 ,  C08F20/06 ,  C08F20/56 ,  C08F2/44 ,  C08F2/38 ,  C08K5/103 ,  C08J3/24 ,  C08J3/12 ,  C08J9/28 ,  C08L71/02 ,  B01J20/26

CPC classification number: C08F20/18 ,  B01J20/267 ,  B01J2220/68 ,  C08F2/38 ,  C08F2/44 ,  C08F6/02 ,  C08F20/06 ,  C08F20/08 ,  C08F20/56 ,  C08J3/075 ,  C08J3/12 ,  C08J3/24 ,  C08J3/245 ,  C08J9/28 ,  C08J2205/022 ,  C08J2333/08 ,  C08J2333/10 ,  C08K3/22 ,  C08K3/36 ,  C08K5/00 ,  C08K5/103 ,  C08K2003/2227 ,  C08L33/06 ,  C08L71/02

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.

公开(公告)号：US09868881B2

公开(公告)日：2018-01-16

申请号：US14306933

申请日：2014-06-17

Applicant: LG CHEM, LTD.

Inventor： Se Ra Kim ,  Suk Ky Chang ,  Byung Kyu Jung ,  Yoon Tae Hwang ,  Cha Hun Ku ,  Sung Jong Kim ,  Se Woo Yang ,  Hyo Sook Joo ,  Min Soo Park

IPC: B32B41/00 ,  C09J7/02 ,  H01M2/10 ,  H01M10/04 ,  H01M6/00 ,  H01M10/02 ,  B32B37/02 ,  H01M4/04 ,  B32B27/36 ,  B32B27/28 ,  B32B27/40 ,  B32B27/30 ,  B32B27/38 ,  C09J133/08

CPC classification number: C09J7/241 ,  B32B27/285 ,  B32B27/308 ,  B32B27/36 ,  B32B27/38 ,  B32B27/40 ,  B32B37/02 ,  C09J7/22 ,  C09J7/245 ,  C09J7/25 ,  C09J7/26 ,  C09J7/29 ,  C09J133/08 ,  C09J2203/33 ,  C09J2401/006 ,  C09J2433/00 ,  C09J2433/006 ,  C09J2463/00 ,  C09J2463/006 ,  C09J2475/00 ,  C09J2475/006 ,  H01M2/10 ,  H01M4/04 ,  H01M6/005 ,  H01M10/02 ,  H01M10/04 ,  H01M10/0431 ,  H01M10/049 ,  Y10T29/49114 ,  Y10T428/24521 ,  Y10T428/28 ,  Y10T428/2852 ,  Y10T428/287 ,  Y10T428/2891

Abstract: A swelling tape for filling a gap and a method of filling a gap are provided. The swelling tape can be applied within the gap having a fluid to realize a 3D shape thereby filling the gap, and be used to fix a subject forming the gap as necessary.

公开(公告)号：US09751995B2

公开(公告)日：2017-09-05

申请号：US15123447

申请日：2015-08-04

Applicant: LG CHEM, LTD.

Inventor： Hyo Sook Joo ,  Ki Youl Yoon ,  Gi Cheul Kim ,  Ju Eun Kim ,  Hyeon Choi ,  Hee Jung Choi ,  Sung Soo Park ,  Sung Hyun Park ,  Myung Han Lee

IPC: C08J3/24 ,  C08J3/075 ,  C08K3/00 ,  C08K5/00 ,  A61L15/60 ,  C08F220/06 ,  A61L15/24 ,  B01J20/26 ,  B01J20/28 ,  C08F292/00 ,  C08F222/02

CPC classification number: C08J3/245 ,  A61L15/24 ,  A61L15/60 ,  B01J20/267 ,  B01J20/28004 ,  B01J20/28059 ,  B01J20/28061 ,  B01J20/28064 ,  C08F220/06 ,  C08F222/02 ,  C08F292/00 ,  C08J3/075 ,  C08J3/24 ,  C08J2333/02 ,  C08K3/00 ,  C08K5/00 ,  C08F2222/1013 ,  C08F2230/085

Abstract: The present invention relates to a superabsorbent polymer that has more improved gel strength and is improved in both water retention capacity (centrifuge retention capacity, CRC) and absorption ability under pressure (AUP) because of an optimized cross-linked structure of a base resin powder inside a cross-linked surface layer, and a preparation method thereof. The superabsorbent polymer includes a base resin powder including a 1st cross-linked polymer of a water-soluble ethylenic unsaturated monomer having acid groups of which at least a part is neutralized, and a cross-linked surface layer that includes a 2nd cross-linked polymer further cross-linked from the 1st cross-linked polymer and is formed on the base resin powder, wherein an inorganic particle is chemically bonded to the 1st cross-linked polymer by the medium of a cross-linking bond, an oxygen-containing bond (—O—), or a nitrogen-containing bond (—NR—, where R is hydrogen or a C1-C3 alkyl or an amide bond).