公开(公告)号：EP3725762A1

公开(公告)日：2020-10-21

申请号：EP19874630.7

申请日：2019-10-18

申请人： LG CHEM, LTD.

发明人： KIM, Gicheul ,  KIM, Ki Hyun ,  LEE, Seul Ah

IPC分类号： C07C69/606 ,  B01J20/26 ,  B01J20/30 ,  C08K5/00 ,  C08K5/09 ,  C08F20/06

摘要： Provided are a novel crosslinking agent compound, and a superabsorbent polymer prepared by using the same. More particularly, provided are a crosslinking agent compound having a novel structure, which exhibits excellent crosslinking property and thermal degradability, and a superabsorbent polymer prepared by using the same.

公开(公告)号：EP3406654B1

公开(公告)日：2020-07-15

申请号：EP17862793.1

申请日：2017-01-05

申请人： LG Chem, Ltd.

发明人： KIM, Ju Eun ,  KIM, Gi Cheul ,  CHOI, Won Mun ,  KIM, Ki Hyun ,  LEE, Seul Ah ,  LIM, Won Taeck

IPC分类号： C08J3/24 ,  C08F2/44 ,  C08J3/12 ,  C08K5/11 ,  C08K3/00 ,  C08L33/08 ,  C08J3/075 ,  C08K3/34

公开(公告)号：EP4458885A1

公开(公告)日：2024-11-06

申请号：EP23903654.4

申请日：2023-07-17

申请人： LG Chem, Ltd.

发明人： LEE, Seul Ah ,  PARK, Sung Soo ,  JU, Jin Hyuck ,  LEE, Junwye ,  AHN, Taebin ,  KIM, Tae Yun ,  PARK, Dong Hoon ,  SHIN, Kwangin ,  WOO, Heechang ,  BAEK, Seokhyeon ,  HAN, Sangwon ,  JEE, Min Goo

IPC分类号： C08J3/24 ,  C08J3/12 ,  C08J3/075 ,  C08F4/40 ,  C08F20/06

摘要： The present disclosure relates to a preparation method for a super absorbent polymer capable of improving the absorption rate and overall absorption properties of the super absorbent polymer and effectively reducing extractable components and residual monomers by introducing a radical reaction system in a pulverization process.

公开(公告)号：EP4321560A1

公开(公告)日：2024-02-14

申请号：EP22825396.9

申请日：2022-06-20

申请人： LG Chem, Ltd.

发明人： NAM, Dae Woo ,  MIN, Kyunghoon ,  LEE, Seul Ah ,  BAEK, Seokhyeon ,  AHN, Gyunhyeok

IPC分类号： C08J3/12 ,  C08J3/24 ,  C08J3/075 ,  C08F220/06 ,  C08F2/01 ,  B29B9/12

摘要： The present disclosure relates to a method for preparing a super absorbent polymer. More specifically, according to the preparation method of a super absorbent polymer of the present disclosure, it is possible to effectively control the initiation and inhibition of polymerization reactions, thereby reducing the content of unreacted monomers in the final product.

公开(公告)号：EP3404050A1

公开(公告)日：2018-11-21

申请号：EP17863185.9

申请日：2017-01-05

申请人： LG Chem, Ltd.

发明人： KIM, Kyu Pal ,  KIM, Gi Cheul ,  CHOI, Won Mun ,  KIM, Ki Hyun ,  LEE, Seul Ah ,  LIM, Won Taeck

IPC分类号： C08F20/18 ,  C08J3/24 ,  C08J3/12 ,  C08K3/34 ,  C08F2/44 ,  C08L33/08 ,  C08J3/075 ,  C08K3/22

CPC分类号： C08F2/44 ,  C08F20/18 ,  C08J3/075 ,  C08J3/12 ,  C08J3/24 ,  C08K3/22 ,  C08K3/34 ,  C08L33/08

摘要： The present invention relates to a superabsorbent polymer having excellent short time free absorbency. The superabsorbent polymer may exhibit excellent centrifuge retention capacity and absorbency under load, as well as excellent short time free absorbency. Thus, it can fundamentally solve the problems of the existing superabsorbent polymer and technical requirement of the art, and can provide various hygienic goods exhibiting more excellent properties.

公开(公告)号：EP4321561A1

公开(公告)日：2024-02-14

申请号：EP22825398.5

申请日：2022-06-20

申请人： LG Chem, Ltd.

发明人： LEE, Seul Ah ,  MIN, Yoon Jae ,  AHN, Gyunhyeok ,  KIM, Gicheul ,  PARK, Hee Kwan ,  MIN, Kyunghoon

IPC分类号： C08J3/12 ,  C08J3/24 ,  C08J3/075 ,  C08F220/06 ,  B29B9/12 ,  C08F2/01

摘要： The present disclosure relates to a method for preparing a super absorbent polymer, and more particularly to a method for preparing a super absorbent polymer in which polymerization can be stably progressed by a continuous process in the polymerization stage

公开(公告)号：EP4089139A1

公开(公告)日：2022-11-16

申请号：EP21898436.7

申请日：2021-11-10

申请人： Lg Chem, Ltd.

发明人： CHUNG, Ui Seok ,  MIN, Yoon Jae ,  LEE, Seul Ah ,  KIM, Gicheul

IPC分类号： C08J3/24 ,  C08J3/12 ,  C08J3/075 ,  C08J9/04 ,  C08K9/10 ,  C08F20/06

摘要： The present disclosure relates to a super absorbent polymer and a preparation method of the same. More specifically, it relates to a super absorbent polymer having a reduced extractable content without deterioration in absorption performance, and to a preparation method of the super absorbent polymer capable of producing the above-described super absorbent polymer by performing a polymerization reaction in the presence of a foaming agent and a carboxylic acid-based additive having a specific structure.

公开(公告)号：EP3719059A1

公开(公告)日：2020-10-07

申请号：EP19895564.3

申请日：2019-11-15

申请人： LG CHEM, LTD.

发明人： KIM, Kyu Pal ,  CHOI, Jinuk ,  LEE, Sang Hwa ,  KIM, Gicheul ,  KIM, Ki Hyun ,  LEE, Seul Ah

IPC分类号： C08J3/24 ,  C08J3/12 ,  C08J9/04 ,  C08F2/44 ,  C08F20/06 ,  C08F20/38 ,  C08F20/26 ,  C08F20/56 ,  C08L33/02 ,  C08L101/14

摘要： Provided is a method of preparing a superabsorbent polymer, which enables the preparation of the superabsorbent polymer exhibiting an improved absorption rate while maintaining excellent absorption performances. The method of preparing a superabsorbent polymer includes the steps of carrying out a crosslinking polymerization of a water-soluble ethylene-based unsaturated monomer having acidic groups which are at least partially neutralized, in the presence of an internal crosslinking agent having a predetermined chemical structure to form a water-containing gel polymer; gel-pulverizing the water-containing gel polymer; drying, pulverizing, and size-sorting the gel-pulverized water-containing gel polymer to form a base polymer powder; and carrying out a surface crosslinking of the base polymer powder by heat treatment in the presence of a surface crosslinking agent, wherein the gel-pulverizing step is carried out by extruding the water-containing gel polymer through a porous plate having a plurality of holes using a screw extruder mounted inside a cylindrical pulverizer under the condition that a chopping index is 28 (/s) or more.

公开(公告)号：EP3636698A1

公开(公告)日：2020-04-15

申请号：EP18853538.9

申请日：2018-08-14

申请人： LG Chem, Ltd.

发明人： KIM, Kyu Pal ,  KIM, Gi Cheul ,  KIM, Ki Hyun ,  LEE, Seul Ah ,  LEE, Sang Gi

IPC分类号： C08J9/14 ,  C08J9/10 ,  C08J3/24 ,  C08J3/12 ,  C08J9/16 ,  C08J9/224

摘要： The present invention relates to a super absorbent polymer. The super absorbent polymer exhibits excellent initial absorption capacity, and thus can provide a sanitary material such as a diaper or a sanitary napkin which can quickly absorb body fluids and impart a dry and soft touch feeling.

公开(公告)号：EP3406654A2

公开(公告)日：2018-11-28

申请号：EP17862793.1

申请日：2017-01-05

申请人： LG Chem, Ltd.

发明人： KIM, Ju Eun ,  KIM, Gi Cheul ,  CHOI, Won Mun ,  KIM, Ki Hyun ,  LEE, Seul Ah ,  LIM, Won Taeck

IPC分类号： C08J3/24 ,  C08F2/44 ,  C08J3/12 ,  C08K5/11 ,  C08K3/00 ,  C08L33/08 ,  C08J3/075 ,  C08K3/34

CPC分类号： B01J20/267 ,  A61L15/18 ,  A61L15/24 ,  A61L15/60 ,  B01J13/16 ,  B01J20/103 ,  B01J20/28021 ,  B01J20/3021 ,  B01J20/3085 ,  C08F2/44 ,  C08F220/06 ,  C08J3/075 ,  C08J3/12 ,  C08J3/24 ,  C08J2333/08 ,  C08K3/00 ,  C08K3/34 ,  C08K5/11 ,  C08L33/08

摘要： The present invention relates to superabsorbent polymer having excellent centrifuge retention capacity and permeability. The superabsorbent polymer simultaneously exhibits excellent centrifuge retention capacity and permeability, and thus, can fundamentally solve the problems of the existing superabsorbent polymer and technical requirement of the art, and can provide various hygienic goods exhibiting more excellent properties.