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1. 发明申请

US20220080387A1 Superabsorbent Polymer And Preparation Method For The Same 有权
公开(公告)号：US20220080387A1
公开(公告)日：2022-03-17
申请号：US17424047
申请日：2020-09-16
申请人： LG Chem, Ltd.
发明人： Young Jae Hur , Taebin Ahn , Dong Hoon Park , Jihye Ryu
IPC分类号： B01J20/26 , C08F120/06 , C08J3/24 , C08J3/12 , B01J20/30
摘要： A method of preparing a superabsorbent polymer includes preparing a base resin in which an acrylic acid-based monomer having acidic groups which are at least partially neutralized and an internal crosslinking agent are crosslinked; and heating the base resin in the presence of a surface crosslinking agent to carry out surface modification of the base resin, wherein the internal crosslinking agent includes a first epoxy crosslinking agent having an epoxy equivalent weight of 100 g/eq or more to less than 130 g/eq, and a second epoxy crosslinking agent having an epoxy equivalent weight of 130 g/eq or more. A superabsorbent polymer having improved rewetting property liquid permeability is also provided.

2. 发明授权

US09808786B2 Preparation method of superabsorbent polymer 有权
公开(公告)号：US09808786B2
公开(公告)日：2017-11-07
申请号：US14779533
申请日：2014-09-12
申请人： LG Chem, Ltd.
发明人： Tae Young Won , Jin Hyun Bae , Jun Kyu Kim , Jong Hyuk Kwon , Young Jae Hur , Yun Kim
IPC分类号： B01J20/00 , B01J20/30 , C08F20/10 , B01J20/26 , C08J3/24
CPC分类号： B01J20/3085 , B01J20/267 , B01J20/3021 , C08F20/10 , C08J3/245 , C08J2333/02
摘要： A method of preparing a superabsorbent polymer is provided, which is able to improve physical properties and to recycle fine powder generated during the preparation process. Particularly, a method of preparing a superabsorbent polymer capable of improving physical properties by using a base resin including a water-containing gel polymer and a base-treated fine powder regranulated body, which are different from each other in degree of neutralization, during preparation of the superabsorbent polymer, is provided.

3. 发明授权

US11613613B2 Superabsorbent polymer composition and method for preparing the same 有权
公开(公告)号：US11613613B2
公开(公告)日：2023-03-28
申请号：US16770414
申请日：2018-11-29
申请人： LG Chem, Ltd.
发明人： Bohee Park , Dae Woo Nam , Young Jae Hur , Yeon Woo Hong , Jiyoon Jeong
IPC分类号： C08F20/06 , C08L33/02 , C08J3/24 , C08L71/02 , C08K3/011 , C08K5/00
摘要： The present invention relates to superabsorbent polymer and a method for preparing the same. The present invention can provide a superabsorbent polymer in which a hydrophobic material having an HLB of 0-6, a hydrophilic polymer and a surface cross-linking agent are mixed into a base resin, thereby having improved rewetting characteristics and permeability through surface-modification of the base resin.

4. 发明授权

US11370856B2 Super absorbent polymer and preparation method for the same 有权
公开(公告)号：US11370856B2
公开(公告)日：2022-06-28
申请号：US17041227
申请日：2019-03-20
申请人： LG Chem, Ltd.
发明人： Dae Woo Nam , Ki Hyun Kim , Jun Kyu Kim , Young Jae Hur
IPC分类号： C08F220/06 , A61L15/24 , C08F20/06 , C08J3/12 , C08J3/24 , C08K3/36 , C08F222/10
摘要： The present invention relates to super absorbent polymer and a method for preparing the same. According to the super absorbent polymer and preparation method for the same of the present invention, super absorbent polymer having improved rewet property and vortex time can be provided.

5. 发明申请

US20210009725A1 Super Absorbent Polymer and Preparation Method for the Same 有权
公开(公告)号：US20210009725A1
公开(公告)日：2021-01-14
申请号：US17041227
申请日：2019-03-20
申请人： LG Chem, Ltd.
发明人： Dae Woo Nam , Ki Hyun Kim , Jun Kyu Kim , Young Jae Hur
IPC分类号： C08F20/06 , C08J3/24 , C08J3/12
摘要： The present invention relates to super absorbent polymer and a method for preparing the same. According to the super absorbent polymer and preparation method for the same of the present invention, super absorbent polymer having improved rewet property and vortex time can be provided.

6. 发明申请

US20160235882A1 SUPERABSORBENT POLYMER COMPOSITION 审中-公开
标题翻译：超级聚合物组合物
公开(公告)号：US20160235882A1
公开(公告)日：2016-08-18
申请号：US15027535
申请日：2014-12-11
申请人： LG CHEM, LTD.
发明人： Wook Hwan Noh , Jun Kyu Kim , Jong Hyuk Kwon , Young Jae Hur , Ki Han Kim
IPC分类号： A61L15/60 , A61L15/24
CPC分类号： A61L15/60 , A61L15/24 , C08K2003/2227 , C08L33/04 , C08L101/14
摘要： A superabsorbent polymer which has excellent initial absorbency and keeps water from flowing out under pressure even after the passage of a long period of time, in which the superabsorbent polymer keeps water from flowing out under pressure even after the passage of a long period of time to exhibit excellent absorbency, and also has an anti-caking property under conditions of high temperature and high humidity to improve storage stability, is provided. The superabsorbent polymer composition of the present invention may be used to improve physical properties of a variety of diapers, potty training pants, incontinence pads, etc., thereby being applied to production of personal absorbent hygiene products having high absorbency and excellent storage stability under conditions of high temperature and high humidity.
摘要翻译：超吸收性聚合物，即使经过长时间后也具有优异的初始吸收性和保持水在压力下流出的超吸收性聚合物，其中超吸收性聚合物在长时间经过长时间后仍保持水在压力下流出，表现出优异的吸收性，并且在高温和高湿度的条件下也具有抗结块性以提高储存稳定性。本发明的超吸收性聚合物组合物可用于改善各种尿布，便盆训练裤，失禁垫等的物理性能，从而适用于在条件下具有高吸收性和优异储存稳定性的个人吸收性卫生产品的生产高温高湿。

7. 发明授权

US11466131B2 Superabsorbent polymer and preparation method thereof 有权
公开(公告)号：US11466131B2
公开(公告)日：2022-10-11
申请号：US16756921
申请日：2019-09-17
申请人： LG Chem, Ltd.
发明人： Young Jae Hur , Dae Woo Nam , Bohee Park , Sujin Kim
IPC分类号： A61L15/60 , C08J3/24 , A61L15/24 , B01J20/02 , B01J20/10 , B01J20/26 , B01J20/30 , C08F220/06 , C08J3/075 , C08J3/12 , C08K3/36
摘要： Provided are a superabsorbent polymer and a preparation method thereof, including preparing a base resin and conducting surface modification of the base resin in the presence of an inorganic filler. The method of preparing the superabsorbent polymer of the present invention may provide a superabsorbent polymer having improved rewetting property and liquid permeability.

8. 发明申请

US20210023529A1 Method of Preparing Superabsorbent Polymer 有权
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.

9. 发明申请

US20200308352A1 Superabsorbent Polymer Composition and Method for Preparing the Same 审中-公开
公开(公告)号：US20200308352A1
公开(公告)日：2020-10-01
申请号：US16770414
申请日：2018-11-29
申请人： LG Chem, Ltd.
发明人： Bohee Park , Dae Woo Nam , Young Jae Hur , Yeon Woo Hong , Jiyoon Jeong
IPC分类号： C08J3/24 , C08L71/02
摘要： The present invention relates to superabsorbent polymer and a method for preparing the same. The present invention can provide a superabsorbent polymer in which a hydrophobic material having an HLB of 0-6, a hydrophilic polymer and a surface cross-linking agent are mixed into a base resin, thereby having improved rewetting characteristics and permeability through surface-modification of the base resin.

10. 发明申请

US20220098373A1 Superabsorbent Polymer And Preparation Method For The Same 有权
公开(公告)号：US20220098373A1
公开(公告)日：2022-03-31
申请号：US17424694
申请日：2020-09-16
申请人： LG Chem, Ltd.
发明人： Dong Hoon Park , Young Jae Hur , Taebin Ahn , Jihye Ryu
IPC分类号： C08J3/24 , C08K5/1515 , C08F2/44 , C08F20/04 , B01J20/26 , C08F2/10
摘要： A method of preparing a superabsorbent polymer includes preparing a base resin in which an acrylic acid-based monomer having acidic groups which are at least partially neutralized and an internal crosslinking agent are crosslinked in the presence of a sodium polycarboxylate surfactant; and heating the base resin in the presence of a surface crosslinking agent to carry out surface modification of the base resin, wherein the internal crosslinking agent includes a first epoxy crosslinking agent having an epoxy equivalent weight of 100 g/eq or more to less than 130 g/eq, and a second epoxy crosslinking agent having an epoxy equivalent weight of 130 g/eq or more. The superabsorbent polymer provides improved rewetting property and liquid permeability.

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