-
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
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：US20190100627A1
公开(公告)日：2019-04-04
申请号：US16083749
申请日：2017-01-05
Applicant: LG Chem, Ltd.
Inventor： Kyu Pal Kim , Gi Cheul Kim , Won Mun Choi , Ki Hyun Kim , Seul Ah Lee , Won Taeck Lim
Abstract: The present invention relates to a superabsorbent polymer exhibiting excellent heat stability.
-
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：US20190085103A1
公开(公告)日：2019-03-21
申请号：US16083755
申请日：2016-12-23
Applicant: LG Chem, Ltd.
Inventor： Ki Hyun Kim , Gi Cheul Kim , Won Mun Choi , Won Taeck Lim , Seul Ah Lee
Abstract: The present invention relates to a method for superabsorbent polymer that has a crosslinking density gradient increasing from the inside toward the outside, and thus, exhibits excellent properties with simultaneously improved centrifuge retention capacity and absorbency under load.
-
公开(公告)号：US20190071523A1
公开(公告)日：2019-03-07
申请号：US16084111
申请日：2017-01-05
Applicant: LG Chem, Ltd.
Inventor： Kyu Pal Kim , Gi Cheul Kim , Won Mun Choi , Ki Hyun Kim , Seul Ah Lee , Won Taeck Lim
CPC classification number: C08F20/18 , B01J20/267 , B01J2220/68 , C08F2/44 , C08J3/075 , C08J3/12 , C08J3/24 , C08J3/245 , C08J2333/10 , C08K3/22 , C08K3/34 , C08K3/346 , C08K5/11 , C08L33/08
Abstract: 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.
-
Patent Agency Ranking
公开(公告)号：US20180273705A1
公开(公告)日：2018-09-27
申请号：US15757041
申请日：2016-12-01
Applicant: LG Chem, Ltd.
Inventor： Ye Sol Yang , Gi Cheul Kim , Kum Hyoung Lee
IPC: C08J3/24 , C08F220/06 , C08J3/075 , B01J20/26
CPC classification number: C08J3/24 , B01J20/267 , C08F2/10 , C08F2/50 , C08F220/06 , C08J3/075 , C08J3/12 , C08J3/245 , C08J2333/02
Abstract: The present invention relates to a method for preparing superabsorbent polymer. According to the preparation method of the present invention, by maintaining the hydrophilicity of superabsorbent polymer and appropriately controlling the crosslinking density, superabsorbent polymer with excellent properties can be prepared though homogeneous surface crosslinking. Thus, superabsorbent polymer with improved absorption speed can be provided without decrease in absorbency under load.
-
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).
-
公开(公告)号：US20160175813A1
公开(公告)日：2016-06-23
申请号：US14911220
申请日：2014-07-17
Applicant: LG CHEM, LTD.
Inventor： Chul Hee Ryu , Gi Cheul Kim
CPC classification number: B01J20/267 , B01J20/28016 , C08F2/10 , C08F6/008 , C08J3/075 , C08J3/12 , C08J3/245 , C08J2333/02 , C08L101/14
Abstract: The present invention relates to a method for preparing a super absorbent polymer. The method for preparing a super absorbent polymer according to the present invention comprises the steps of: carrying out a thermal polymerization or a photopolymerization of a monomer composition including a water-soluble ethylene-based unsaturated monomer and a polymerization initiator to form a hydrogel polymer; drying the hydrogel polymer; pulverizing the dried polymer; mixing a fine powder having a particle diameter of 180 μm or less and a polymer having a particle diameter of 300 μm or more among the pulverized polymer; and adding steam to the mixture to carry out a reassembling. According to the present invention, the super absorbent polymer having a high fine powder aggregation strength can be obtained.
Abstract translation: 本发明涉及一种制备高吸水性聚合物的方法。 本发明的高吸水性聚合物的制备方法，包括以下步骤：进行包含水溶性乙烯系不饱和单体和聚合引发剂的单体组合物的热聚合或光聚合，形成水凝胶聚合物; 干燥水凝胶聚合物; 粉碎干燥的聚合物; 在粉碎的聚合物中混合粒径为180μm以下的细粉末和粒径为300μm以上的聚合物， 并向混合物中加入蒸汽进行重新组装。 根据本发明，可以获得具有高细粉聚集强度的高吸水性聚合物。
-
49.发明授权Method of preparing a super absorbent polymer and a super absorbent polymer prepared therefrom 有权制备高吸收性聚合物的方法和由其制备的超级吸收性聚合物公开(公告)号：US09156974B2
公开(公告)日：2015-10-13
申请号：US14359876
申请日：2013-11-15
Applicant: LG CHEM, LTD.
Inventor： Yong Hun Lee , Kyu Pal Kim , Chang Sun Han , Gi Cheul Kim , Chul Hee Ryu
CPC classification number: C08L33/08 , A61L15/60 , B01J20/261 , B01J20/28004 , B01J20/28047 , B01J20/3021 , B01J2220/68 , C08F220/06 , C08J3/075 , C08J3/245 , C08J2333/08 , C08J2433/08 , C08L2205/025 , C08L23/04 , C08F2222/1013
Abstract: A method of preparing a super absorbent polymer (SAP) includes the steps of preparing a first hydrogel polymer by carrying out a thermal polymerization or photo polymerization of a monomer composition including a water-soluble ethylene-based unsaturated monomer and a polymerization initiator; preparing a second hydrogel polymer by carrying out a thermal polymerization or photo polymerization of a monomer composition including a water-soluble ethylene-based unsaturated monomer and a polymerization initiator; drying and milling the first hydrogel polymer and distributing the first hydrogel polymer into a fine powder having a particle diameter below 150 μm and a base resin having a particle diameter of 150 μm to 850 μm; fabricating a reassembled body of the fine powder by mixing the fine powder and the second hydrogel polymer; and mixing the reassembled body of the fine powder with the first hydrogel polymer, and drying and milling the same.
Abstract translation: 制备高吸收性聚合物（SAP）的方法包括通过进行包含水溶性乙烯类不饱和单体和聚合引发剂的单体组合物的热聚合或光聚合来制备第一水凝胶聚合物的步骤; 通过进行包含水溶性乙烯类不饱和单体和聚合引发剂的单体组合物的热聚合或光聚合制备第二水凝胶聚合物; 干燥和研磨第一水凝胶聚合物并将第一水凝胶聚合物分散成粒径低于150μm的细粉末和粒径为150μm至850μm的基础树脂; 通过混合细粉末和第二水凝胶聚合物制造细粉末的重新组装体; 并将重新组装的细粉末体与第一水凝胶聚合物混合，并干燥和研磨该细粉末。
-
50.发明授权公开(公告)号：US11420185B2
公开(公告)日：2022-08-23
申请号：US16630292
申请日：2018-08-17
Applicant: LG Chem, Ltd.
Inventor： Ki Youl Yoon , Gi Cheul Kim , Hyeon Choi , Hyo Sook Joo , Ju Eun Kim
Abstract: The present disclosure relates to a preparation method for a super absorbent polymer sheet and a super absorbent polymer sheet prepared therefrom. According to the preparation method of the present disclosure, a porous super absorbent polymer sheet can be prepared by a simplified process.
-
-
-
-
-
-
-
-
-
Search Results
65
records
(took 0.021 seconds)
