公开(公告)号：US20220371902A1

公开(公告)日：2022-11-24

申请号：US17621830

申请日：2020-09-03

Applicant: LG CHEM, LTD.

Inventor： Tae Gyeong Kang ,  Bong June Kim ,  Se Won Baek ,  Hyun Woo Jeon ,  Sung Min Yu ,  Young Hun Kim ,  Sang Woo Park

IPC: C01B33/158 ,  C01B33/159

Abstract: The present invention provides an aerogel blanket including a blanket base, aerogel coupled on the surface of the blanket base, and aerogel located at a space between the blanket bases, the aerogel coupled on the surface of the blanket base is 50 wt % based on the total weight of aerogel, wherein the aerogel blanket has the number of aerogel particles separated from the aerogel blanket ranging from 13,600 to 90,000 per ft3, when vibrating the aerogel blanket at a frequency of 1 Hz to 30 Hz for 2 hours to 10 hours.

公开(公告)号：US10919772B2

公开(公告)日：2021-02-16

申请号：US15526221

申请日：2016-10-18

Applicant: LG CHEM, LTD.

Inventor： Hyun Woo Jeon ,  Jong Hun Kim ,  Je Kyun Lee

IPC: C01B33/14 ,  C01B33/158 ,  B01J13/00

Abstract: The present invention relates to a method of preparing a hydrophobic metal oxide-silica composite aerogel, in which a degree of hydrophobicity may be controlled while having a high specific surface area and a low tap density, and a hydrophobic metal oxide-silica composite aerogel prepared thereby. The preparation method according to the present invention may not only have excellent productivity and economic efficiency due to a relatively simpler preparation process and shorter preparation time than the related art, but may also perform an effective surface modification reaction by using a small amount of a surface modifier. Thus, since the surface modification reaction may be easily performed by using only a very small amount of the surface modifier, a hydrophobic metal oxide-silica composite aerogel containing about 1 wt % to 2 wt % of carbon may be prepared.

公开(公告)号：US12139410B2

公开(公告)日：2024-11-12

申请号：US17621830

申请日：2020-09-03

Applicant: LG CHEM, LTD.

Inventor： Tae Gyeong Kang ,  Bong June Kim ,  Se Won Baek ,  Hyun Woo Jeon ,  Sung Min Yu ,  Young Hun Kim ,  Sang Woo Park

IPC: C01B33/158 ,  C01B33/159 ,  C04B14/06 ,  C04B30/02

Abstract: The present invention provides an aerogel blanket including a blanket base, aerogel coupled on the surface of the blanket base, and aerogel located at a space between the blanket bases, the aerogel coupled on the surface of the blanket base is 50 wt % based on the total weight of aerogel, wherein the aerogel blanket has the number of aerogel particles separated from the aerogel blanket ranging from 13,600 to 90,000 per ft3, when vibrating the aerogel blanket at a frequency of 1 Hz to 30 Hz for 2 hours to 10 hours.

公开(公告)号：US11926529B2

公开(公告)日：2024-03-12

申请号：US17414027

申请日：2020-08-28

Applicant: LG CHEM, LTD.

Inventor： Young Hun Kim ,  Se Won Baek ,  Sung Min Yu ,  Kyung Seok Min ,  Hyun Woo Jeon ,  Sang Woo Park ,  Bong June Kim

IPC: C01B33/158 ,  B01J13/00 ,  C04B30/02 ,  D06M11/79 ,  F16L59/02

CPC classification number: C01B33/1585 ,  B01J13/0091 ,  C04B30/02 ,  D06M11/79 ,  F16L59/028 ,  C01P2004/03 ,  C01P2006/22 ,  C01P2006/32 ,  C04B2201/32

Abstract: Provided is an aerogel blanket and a method for producing the same, wherein a catalyzed sol I sufficiently and uniformly impregnated into a blanket in an impregnation tank, and the catalyzed sol is allowed to stay in the impregnation tank for a specific time to control fluidity while achieving a viscosity at which the catalyzed sol can be easily introduced into the blanket, thereby forming a uniform aerogel in the blanket. As a result, the uniformity of pore structure and thermal insulation performance of an aerogel blanket are improved, the loss of raw materials is reduced through the impregnation process, the occurrence of process problems is reduced, and the generation of dust is reduced.

公开(公告)号：US10792650B2

公开(公告)日：2020-10-06

申请号：US15533936

申请日：2016-10-19

Applicant: LG CHEM, LTD.

Inventor： Jong Hun Kim ,  Hyun Woo Jeon ,  Je Kyun Lee

IPC: B01J21/00 ,  B01J31/02 ,  C01B33/158 ,  C01B13/14 ,  B01J21/02

Abstract: The present invention relates to a method of preparing an ultra-light metal oxide-silica composite aerogel having high specific surface area and high pore volume and a metal oxide-silica composite aerogel prepared thereby. The preparation method according to the present invention may not only have good economic efficiency because production costs are relatively reduced in comparison to the related art, but may also effectively prevent the collapse of a pore structure by suppressing a shrinkage phenomenon during drying, and thus, a metal oxide-silica composite aerogel having ultra-light properties as well as high porosity characteristics, such as high specific surface area and high pore volume, may be prepared.

公开(公告)号：US20240228304A1

公开(公告)日：2024-07-11

申请号：US18431792

申请日：2024-02-02

Applicant: LG CHEM, LTD.

Inventor： Kyu Reon Lee ,  Se Won Baek ,  Hyun Woo Jeon ,  Mi Ri Kim ,  Sung Min Yu ,  Sang Woo Park ,  Bong June Kim

IPC: C01B33/159 ,  C01B33/145 ,  C01B33/158 ,  F16L59/02

CPC classification number: C01B33/159 ,  C01B33/145 ,  C01B33/1585 ,  F16L59/026 ,  F16L59/028 ,  C01P2004/03 ,  C01P2004/61 ,  C01P2006/32

Abstract: A silica sol, a silica aerogel blanket using the same, and a method for manufacturing the same, wherein a hydrophobizing agent, a base catalyst, an organic solvent, and water are included in a catalyst composition when manufacturing the silica aerogel blanket, so that a wet aging step which is performed under high-temperature conditions and increases the amount of a solvent used, and a surface modification step which uses a large amount of an organic solvent and an expensive surface modifier, resulting in a process that is complex and long and thus inhibiting economic feasibility and productivity, can be omitted.

公开(公告)号：US11377360B2

公开(公告)日：2022-07-05

申请号：US16334688

申请日：2017-11-01

Applicant: LG CHEM, LTD.

Inventor： Hyun Woo Jeon ,  Je Kyun Lee

IPC: C01B33/158 ,  B01J13/00 ,  C01B33/154

Abstract: A method of preparing acicular metal-silica composite aerogel particles by adjusting an aspect ratio of the acicular shape through the adjustment of concentrations of an acidic solution, a solution including a metal salt, and a water glass solution which are reactants, and acicular metal-silica composite aerogel particles prepared thereby. The method prepares acicular metal-silica composite aerogel particles in a short period of time under mild conditions of low temperature and atmospheric pressure, the process is simple, and production costs are reduced in comparison to a conventional preparation method, and thus, productivity and economic efficiency are excellent. When the acicular metal-silica composite aerogel particles are used as an additive of a polymer resin, physical properties, such as viscosity and thixotropy, are improved.

公开(公告)号：US20250051172A1

公开(公告)日：2025-02-13

申请号：US18931857

申请日：2024-10-30

Applicant: LG Chem, Ltd.

Inventor： Kyu Reon Lee ,  Se Won Baek ,  Hyun Woo Jeon ,  Mi Ri Kim ,  Sung Min Yu ,  Sang Woo Park ,  Bong June Kim

IPC: C01B33/159 ,  C01B33/145 ,  C01B33/158 ,  F16L59/02

Abstract: A silica sol, a silica aerogel blanket using the same, and a method for manufacturing the same, wherein a hydrophobizing agent, a base catalyst, an organic solvent, and water are included in a catalyst composition when manufacturing the silica aerogel blanket, so that a wet aging step which is performed under high-temperature conditions and increases the amount of a solvent used, surface modification step which uses a large amount of an organic solvent and an expensive surface modifier, resulting in a process that is complex and long and thus inhibiting economic feasibility and productivity, can be omitted.

公开(公告)号：US11485892B2

公开(公告)日：2022-11-01

申请号：US16761565

申请日：2018-08-29

Applicant: LG CHEM, LTD.

Inventor： Tae Gyeong Kang ,  Je Kyun Lee ,  Kyoung Shil Oh ,  Hyun Woo Jeon

IPC: C09K5/14 ,  C01B33/158 ,  C04B14/04

Abstract: Provided is a method for producing a silica aerogel blanket having high thermal insulation and high strength, wherein an acicular metal-silica composite is added to a step of preparing a silica precursor solution during the production of the silica aerogel blanket to produce a silica aerogel blanket having characteristics of high thermal insulation, high strength, high thermal resistance and low dust.

公开(公告)号：US10399857B2

公开(公告)日：2019-09-03

申请号：US15537188

申请日：2016-10-18

Applicant: LG CHEM, LTD.

Inventor： Hyun Woo Jeon ,  Jong Hun Kim ,  Je Kyun Lee

IPC: B01J20/10 ,  C01B33/158 ,  B01J13/00 ,  C08K3/36

Abstract: The present invention relates to a method of preparing a hydrophobic metal oxide-silica composite aerogel having a high specific surface area and a low tap density and a hydrophobic metal oxide-silica composite aerogel prepared thereby. Thus, the preparation method may not only have excellent productivity and economic efficiency due to a relatively simpler preparation process and shorter preparation time than the related art, but may also prepare a hydrophobic metal oxide-silica composite aerogel having a high specific surface area and a low tap density.