公开(公告)号：US20240075456A1

公开(公告)日：2024-03-07

申请号：US18272509

申请日：2022-12-09

申请人： LG Chem, Ltd.

发明人： Jin Woo Lee ,  Jun Kyu Kim ,  Changhun Kim

IPC分类号： B01J20/26 ,  C08F220/06 ,  C08J3/075 ,  C08J3/12 ,  C08J3/24

CPC分类号： B01J20/267 ,  C08F220/06 ,  C08J3/075 ,  C08J3/12 ,  C08J3/247 ,  B01J2220/68 ,  C08F2400/02 ,  C08F2810/20 ,  C08J2333/02

摘要： Provided is a method of preparing a superabsorbent polymer. More particularly, provided is a method of preparing a superabsorbent polymer, in which variations in centrifugal retention capacity of superabsorbent polymer particles to be prepared are reduced by controlling heat treatment temperature conditions in a surface crosslinking step, thereby improving absorption properties of the superabsorbent polymer finally prepared.

公开(公告)号：US20220346379A1

公开(公告)日：2022-11-03

申请号：US17774202

申请日：2020-11-13

申请人： LG Chem, Ltd.

发明人： Haesung Yun ,  Hyungsam Choi ,  Dong Hyun Kim ,  Seonjung Jung ,  Ji Seok Lee ,  Jin Woo Lee ,  Jun Kyu Kim ,  Byungguk Kim ,  Sanggon Kim

IPC分类号： A01N47/44 ,  A01P1/00 ,  C08F220/06 ,  C08J3/24 ,  A61L15/46 ,  A61L15/60 ,  A61L15/24

摘要： Provided are both a superabsorbent polymer capable of continuously and safely exhibiting an improved bacterial growth inhibitory property and a deodorant property without deterioration in the physical properties of the superabsorbent polymer, such as water retention capacity, absorption under pressure, etc., as well as a preparation method for the superabsorbent polymer.

公开(公告)号：US20210322953A1

公开(公告)日：2021-10-21

申请号：US17270338

申请日：2019-10-10

申请人： LG Chem, Ltd.

发明人： Bohee Park ,  Jun Kyu Kim ,  Dong Hyun Kim

IPC分类号： B01J20/26 ,  B01J20/28 ,  B01J20/30 ,  B01J20/32 ,  B29B9/02 ,  B29B9/12 ,  B29B9/16 ,  B29B13/10 ,  B29B13/06

摘要： The invention relates to superabsorbent polymer that not only has excellent basic absorption performance, but also exhibits more improved permeability under pressure, and thus, can improve rewet property and leak inhibition property of hygienic products such as a diaper, and the like, and a method for preparing the same. The superabsorbent polymer comprises base resin powder comprising first crosslinked polymer of water soluble ethylenically unsaturated monomers having acid groups of which at least a part are neutralized; and a surface crosslink layer on the base resin powder, comprising second crosslinked polymer formed by additional crosslinking of the first crosslinked polymer by a surface crosslinking agent, wherein the surface crosslinking agent comprises a polymer type first surface crosslinking agent having number average molecular weight of 300 or more, and having plural hydroxy groups or epoxy groups.

公开(公告)号：US11046819B2

公开(公告)日：2021-06-29

申请号：US16087392

申请日：2016-12-28

申请人： LG Chem, Ltd.

发明人： Dae Woo Nam ,  Jun Kyu Kim ,  Hyung Ki Yoon ,  Tae Hwan Jang ,  Bo Hyun Seong ,  Yeon Woo Hong ,  Su Jin Kim ,  Seong Beom Heo ,  Seon Jung Jung ,  Ji Yoon Jeong

IPC分类号： C08J3/07 ,  C08J3/075 ,  C08K3/013 ,  A61L15/60 ,  C08J3/12 ,  C08J3/24 ,  C08K5/06 ,  C08K5/09 ,  C08L33/06 ,  C08K3/30

摘要： A super absorbent polymer according to the present invention has excellent dryness while maintaining excellent absorption performance, and thus is preferably used for hygienic materials such as diapers, and can exhibit excellent performance.

公开(公告)号：US20210023529A1

公开(公告)日：2021-01-28

申请号：US16982292

申请日：2019-12-10

申请人： LG Chem, Ltd.

发明人： Seul Ah Lee ,  Gicheul Kim ,  Dae Woo Nam ,  Ki Hyun Kim ,  Jun Kyu Kim ,  Young Jae Hur

IPC分类号： B01J20/26 ,  C08F220/06 ,  C08F2/44 ,  C08L23/02 ,  C08L33/08 ,  C08L33/20 ,  C08L31/04 ,  C08L27/02 ,  C08L25/02 ,  C08J3/12 ,  C08J9/14 ,  C08J9/16

摘要： 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.

公开(公告)号：US20190135992A1

公开(公告)日：2019-05-09

申请号：US16094043

申请日：2016-12-28

申请人： LG Chem, Ltd.

发明人： Bo Hyun Seong ,  Dae Woo Nam ,  Jun Kyu Kim ,  Su Jin Kim ,  Seon Jung Jung ,  Ji Yoon Jeong ,  Tae Hwan Jang

IPC分类号： C08J3/24 ,  C08J3/075 ,  C08J3/12

摘要： A super absorbent polymer produced by the preparation method of the super absorbent polymer according to the present invention has excellent dryness while maintaining excellent absorption performance, and thus is preferably used for hygienic materials such as diapers and can exhibit excellent performance.

公开(公告)号：US20240316532A1

公开(公告)日：2024-09-26

申请号：US18281702

申请日：2022-12-14

申请人： LG Chem, Ltd.

发明人： Ji Hong Min ,  Jun Kyu Kim ,  Hyungsam Choi

IPC分类号： B01J20/26 ,  B01J20/24 ,  B01J20/30 ,  B01J20/32

CPC分类号： B01J20/267 ,  B01J20/24 ,  B01J20/3021 ,  B01J20/3078 ,  B01J20/3085 ,  B01J20/321 ,  B01J20/3217 ,  B01J20/3282

摘要： According to the composition of super absorbent polymer and preparation method thereof according to the present disclosure, by mixing deodorization material with super absorbent polymer while controlling combination and mixing ratios thereof, the composition has excellent deodorization performance while minimizing property deterioration of super absorbent polymer.

公开(公告)号：US20220234027A1

公开(公告)日：2022-07-28

申请号：US17629090

申请日：2020-10-07

申请人： LG Chem, Ltd.

发明人： Jin Seok Seo ,  Jun Kyu Kim ,  Dong Hyun Kim

IPC分类号： B01J20/26 ,  C08F120/06 ,  B01J20/28 ,  B01J20/30

摘要： The present disclosure relates to a preparation method of a super absorbent polymer, and there is provided a preparation method of a super absorbent polymer capable of achieving anti-caking while maintaining excellent absorption-related physical properties of super absorbent polymer particles by performing surface cross-linking at a relatively lower temperature than before using a non-epoxy cross-linking agent without an epoxy-based surface cross-linking agent, which is a controversial source of chemical hazards.

公开(公告)号：US20210189074A1

公开(公告)日：2021-06-24

申请号：US17196180

申请日：2021-03-09

申请人： LG Chem, Ltd.

发明人： Dae Woo Nam ,  Jun Kyu Kim ,  Hyung Ki Yoon ,  Tae Hwan Jang ,  Bo Hyun Seong ,  Yeon Woo Hong ,  Su Jin Kim ,  Seong Beom Heo ,  Seon Jung Jung ,  Ji Yoon Jeong

IPC分类号： C08J3/075 ,  C08K3/013 ,  A61L15/60 ,  C08J3/12 ,  C08J3/24 ,  C08K5/06 ,  C08K5/09 ,  C08L33/06

摘要： A super absorbent polymer according to the present invention has excellent dryness while maintaining excellent absorption performance, and thus is preferably used for hygienic materials such as diapers, and can exhibit excellent performance.

公开(公告)号：US20190308170A1

公开(公告)日：2019-10-10

申请号：US16091197

申请日：2016-12-28

申请人： LG Chem, Ltd.

发明人： Seong Beom Heo ,  Yeon Woo Hong ,  Hyung Ki Yoon ,  Bo Hyun Seong ,  Su Jin Kim ,  Tae Hwan Jang ,  Jun Kyu Kim

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

摘要： A super absorbent polymer according to the present invention has fast absorption rate while having high permeability and suction power, and thus is preferably used for hygienic materials such as diapers and can exhibit excellent performance.