公开(公告)号：US10934400B2

公开(公告)日：2021-03-02

申请号：US16090966

申请日：2017-12-15

Applicant: LG Chem, Ltd.

Inventor： Ki Youl Yoon ,  Hyo Sook Joo ,  Gi Cheul Kim ,  Hyeon Choi ,  Ju Eun Kim

IPC: C08J3/075 ,  C08F20/06 ,  C08K5/11 ,  C08F2/26 ,  C08F2/44 ,  A61L15/42 ,  C08J9/00 ,  A61L15/60 ,  C08F2/10 ,  C08J3/24 ,  C08K3/00 ,  C08K5/00 ,  C08J3/12 ,  C07D317/34 ,  C07D307/60 ,  B01J20/26 ,  B01J20/28 ,  C08F20/18 ,  C08F20/28 ,  C08K3/22 ,  C08K5/053 ,  C08K5/41 ,  C08K3/36

Abstract: The present disclosure relates to a preparation method of a porous super absorbent polymer exhibiting excellent absorption performance and improved absorption rate due to a novel pore structure, and a porous super absorbent polymer prepared therefrom. The porous super absorbent polymer includes a base resin powder including a cross-linked polymer of a water soluble ethylene-based unsaturated monomer containing acidic groups which are at least partially neutralized, and an inorganic filler contained in the cross-linked structure of the cross-linked polymer, wherein the base resin powder includes a plurality of pores having a diameter of a sub-micron (sub-μm) scale in the cross-linked structure, and an interconnected pore structure in the form of an open channel in which 90% or more of the pores are connected to each other.

公开(公告)号：US10686185B2

公开(公告)日：2020-06-16

申请号：US15760066

申请日：2016-08-26

Applicant: LG CHEM, LTD.

Inventor： Houngsik Yoo ,  Jong Won Lee ,  Dong Hyun Kim ,  Gyemin Kwon ,  Byoung Hoon Ahn ,  Yelin Kim ,  Sang Hoon Choy ,  Hyeon Choi ,  Jungkeun Yoo

IPC: H01M4/139 ,  H01M4/04 ,  H01M4/62 ,  C01B32/174 ,  H01M10/0525

Abstract: The present disclosure relates to a carbon nanotube dispersion including entangled-type carbon nanotubes, a dispersion medium, and partially hydrogenated nitrile rubber having a residual double bond (RDB) value of 0.5% by weight to 40% by weight calculated according to the following Mathematical Formula 1, wherein dispersed particle diameters of the carbon nanotubes have particle size distribution D50 of 2 μm to 5 μm, a method for preparing the same, and methods for preparing electrode slurry and an electrode using the same.

公开(公告)号：US10590248B2

公开(公告)日：2020-03-17

申请号：US15738970

申请日：2016-09-22

Applicant: LG Chem, Ltd.

Inventor： Jong-Won Lee ,  Hyeon Choi ,  Houng-Sik Yoo

IPC: C08G18/61 ,  C08G18/73 ,  G06F3/041 ,  C08L83/04 ,  C08J5/18 ,  G06F3/01 ,  C08G18/79 ,  G06F1/16 ,  C08G18/78 ,  C09D183/10 ,  C08G77/458

Abstract: The present invention relates to a PDMS-polyurethane film for displays, which has a dielectric constant/elastic modulus value of 2 to 15 mm2/N, and a production method thereof.

公开(公告)号：US10468685B2

公开(公告)日：2019-11-05

申请号：US15762938

申请日：2016-07-27

Applicant: LG CHEM, LTD.

Inventor： Houngsik Yoo ,  Jongheon Seol ,  Jong Won Lee ,  Dong Hyun Kim ,  Gyemin Kwon ,  Yelin Kim ,  Jungkeun Yoo ,  Dong Hyun Cho ,  Sang Hoon Choy ,  Hyeon Choi ,  Kyungyeon Kang ,  Jihee Woo

IPC: H01B1/18 ,  H01M4/62 ,  H01M10/0525 ,  C01B32/174 ,  H01M4/139 ,  B82Y30/00 ,  B82Y40/00

Abstract: The present disclosure relates to a carbon nanotube dispersion liquid comprising bundle-type carbon nanotubes; a dispersion medium; and a polyvinyl butyral resin having a weight average molecular weight of greater than 50,000, a method for preparing the same, methods for preparing electrode slurry and an electrode using the same, and an electrode and a secondary battery prepared using the carbon nanotube dispersion liquid.

公开(公告)号：US10414888B2

公开(公告)日：2019-09-17

申请号：US15738985

申请日：2016-09-22

Applicant: LG Chem, Ltd.

Inventor： Jong-Won Lee ,  Hyeon Choi ,  Houng-Sik Yoo

IPC: C08G18/00 ,  C08G61/04 ,  C08J5/18 ,  C08G18/72 ,  C08G18/42 ,  G06F3/01 ,  G06F3/041 ,  G06F1/16 ,  C08G18/78

Abstract: The present invention relates to a polyurethane film for displays, which has high dielectric constant and low modulus characteristics and a dielectric constant/elastic modulus value of 2 to 15 mm2/N, and a production method thereof.

公开(公告)号：US10329438B2

公开(公告)日：2019-06-25

申请号：US15311720

申请日：2015-05-29

Applicant: LG CHEM, LTD.

Inventor： Hee-Jung Choi ,  Hyung-Kee Kim ,  Seong-Kyun Kang ,  Hyeon Choi

IPC: C08K9/06 ,  C09D7/62 ,  C09D7/45 ,  C09D7/63 ,  C09D7/20 ,  C09D7/40 ,  C01B33/14 ,  C09D179/04 ,  C09D161/14 ,  C08K3/36 ,  C08K5/5435

Abstract: Disclosed are a silica sol composition including silica, an anionic dispersant, two or more epoxy silane coupling agents, and an organic solvent, and a method for preparing the same. In the silica sol composition, a uniform surface modification of silica particles may be achieved by using an anionic dispersant and two or more epoxy silane coupling agents, and it is possible to effectively enhance the compatibility between a silica filler whose surface is modified with an epoxy group and a resin which is an underfill composition.

公开(公告)号：US20190126240A1

公开(公告)日：2019-05-02

申请号：US16093856

申请日：2018-01-31

Applicant: LG Chem, Ltd.

Inventor： Ki Youl Yoon ,  Hyo Sook Joo ,  Gi Cheul Kim ,  Hyeon Choi ,  Ju Eun Kim

IPC: B01J20/26 ,  B01J20/18 ,  B01J20/10 ,  B01J20/08 ,  B01J20/28 ,  B01J20/30

Abstract: The present disclosure relates to a super absorbent polymer, including: a base resin powder comprising a first cross-linked polymer of a water soluble ethylene-based unsaturated monomer containing acidic groups which are at least partially neutralized; and a surface cross-linked layer comprising a second cross-linked polymer further cross-linked from the first cross-linked polymer and formed on the base resin powder, wherein the first cross-linked polymer is bound to a porous zeolite in which a mesopore having a BET surface area of at least 100 m2/g and a porosity of at least 0.2 cm3/g is formed, and a preparation method thereof.

公开(公告)号：US20190119452A1

公开(公告)日：2019-04-25

申请号：US16090966

申请日：2017-12-15

Applicant: LG Chem, Ltd.

Inventor： Ki Youl Yoon ,  Hyo Sook Joo ,  Gi Cheul Kim ,  Hyeon Choi ,  Ju Eun Kim

IPC: C08J3/075 ,  C08J3/24 ,  C08F20/06 ,  C08F20/18 ,  C08F20/28 ,  C08K3/36 ,  C08K3/22 ,  C08K5/41 ,  C08K5/11 ,  C08K5/053 ,  B01J20/26 ,  B01J20/28

Abstract: The present disclosure relates to a preparation method of a porous super absorbent polymer exhibiting excellent absorption performance and improved absorption rate due to a novel pore structure, and a porous super absorbent polymer prepared therefrom. The porous super absorbent polymer includes a base resin powder including a cross-linked polymer of a water soluble ethylene-based unsaturated monomer containing acidic groups which are at least partially neutralized, and an inorganic filler contained in the cross-linked structure of the cross-linked polymer, wherein the base resin powder includes a plurality of pores having a diameter of a sub-micron (sub-μm) scale in the cross-linked structure, and an interconnected pore structure in the form of an open channel in which 90% or more of the pores are connected to each other.

公开(公告)号：US20170326528A1

公开(公告)日：2017-11-16

申请号：US15524697

申请日：2015-12-29

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 ,  C08J3/12 ,  C08J3/075 ,  B01J20/32 ,  B01J20/30 ,  B01J20/10 ,  B01J20/28 ,  C08K9/06

CPC classification number: B01J20/267 ,  A61F2013/530481 ,  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 ,  C08J2300/14 ,  C08K9/06

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：US09732187B2

公开(公告)日：2017-08-15

申请号：US15035458

申请日：2014-11-18

Applicant: LG CHEM, LTD.

Inventor： Sung-Kyoung Kim ,  Hyun Ju Cho ,  Seong Kyun Kang ,  Seung Young Park ,  Hyeon Choi

IPC: C08G64/34 ,  B01J31/22 ,  C08G64/02 ,  B01J31/12 ,  C08K5/56 ,  C08L69/00

CPC classification number: C08G64/34 ,  B01J31/2239 ,  B01J2231/14 ,  B01J2531/26 ,  C08G64/0208

Abstract: The present invention relates to a manufacturing method of a polyalkylene carbonate resin capable of suppressing agglomeration among catalyst particles during polymerization to maintain an excellent catalytic activity in a polymerization process, wherein the manufacturing method of a polyalkylene carbonate resin may include polymerizing epoxide and a monomer including carbon dioxide in the presence of a zinc dicarboxylate-based organic zinc catalyst and a dispersant, and the dispersant may include at least one selected from the group consisting of C1-C10 alkyl acrylate, C1-C10 alkyl methacrylate, C1-C20 monocarboxylic acid having an oxo group in a molecular structure, and a polyether-based polymer having C2-C6 alkylene oxide repeating units.