公开(公告)号：US20180237596A1

公开(公告)日：2018-08-23

申请号：US15755513

申请日：2017-03-07

Applicant: LG CHEM, LTD.

Inventor： Ye Hon KIM ,  Dong Kwon LEE ,  Jong Ku LEE ,  Je Kyun LEE

IPC: C08J3/12 ,  C08J3/075 ,  C01B33/158 ,  B02C19/06 ,  B02C18/18

CPC classification number: C08J3/12 ,  B01J19/00 ,  B02C18/18 ,  B02C19/06 ,  C01B33/158 ,  C01B33/1585 ,  C08J3/075 ,  C08J2383/02 ,  C08J2383/04

Abstract: The system for preparing silica aerogel according to the present invention comprises a raw material supply part transferring at least one raw material of de-ionized water, water glass, a surface modifier, an inorganic acid, and an organic solvent to a mixing part, the mixing part mixing the raw materials transferred from the raw material supply part to produce silica wet gel, a drying part drying the silica wet gel to produce the silica aerogel, a recovery part recovering a portion of the vaporized raw material of the raw materials used in at least one of the mixing part and the drying part, and a heat transfer part transferring heat to at least one of the mixing part and the drying part, wherein the system further comprises a pulverizing part that pulverizes the raw material from the row material supply part to the mixing part.

公开(公告)号：US20180179075A1

公开(公告)日：2018-06-28

申请号：US15738516

申请日：2017-02-07

Applicant: LG CHEM, LTD.

Inventor： Ye Hon KIM ,  Je Kyun LEE ,  Kyoung Shil OH

IPC: C01B33/158 ,  C01B33/145 ,  C01B33/155 ,  B05C5/02 ,  B05C9/12 ,  B05C11/02 ,  B05D1/26 ,  B05D3/02

CPC classification number: C01B33/1585 ,  B05C5/0245 ,  B05C9/12 ,  B05C11/028 ,  B05D1/26 ,  B05D3/0254 ,  B65H35/06 ,  B65H37/00 ,  C01B33/14 ,  C01B33/145 ,  C01B33/152 ,  C01B33/155 ,  C01P2006/32

Abstract: The present invention relates to a method for manufacturing an aerogel sheet and comprises: a step (a) of preparing silica sol and a surface modifying agent to prepare a silica precursor; a step (b) of preparing a gelling catalyst; a step (c) of injecting the silica precursor prepared in the step (a) to a surface of a blanket to impregnate the silica precursor; and a step (d) of injecting the gelling catalyst prepared in the step (b) to the surface of the blanket in which the silica precursor is impregnated to gelate the silica precursor.

公开(公告)号：US20180161744A1

公开(公告)日：2018-06-14

申请号：US15738495

申请日：2017-01-17

Applicant: LG CHEM, LTD.

Inventor： Ye Hon KIM ,  Je Kyun LEE ,  Kyoung Shil OH

IPC: B01J13/00 ,  B41N10/02 ,  B65H37/00 ,  C01B33/158

Abstract: A method for manufacturing an aerogel sheet according to the present invention includes: a step (a) of preparing a blanket having a plate shape; a step (b) of mixing silica sol with gelling catalyst to prepare a silica sol precursor; and a step (c) of injecting the silica sol precursor prepared in the step (b) to a surface of the blanket prepared in the step (a) through an injection device to gelate the silica sol precursor, wherein, in the step (c), the injection device injects the silica sol precursor while moving from one side to the other side of the surface of the blanket.

公开(公告)号：US20180147811A1

公开(公告)日：2018-05-31

申请号：US15576264

申请日：2017-02-03

Applicant: LG CHEM, LTD

Inventor： Kyoung Shil OH ,  Je Kyun LEE ,  Dong Sik BAE ,  Jeong Hun SON

IPC: B32B5/26 ,  B32B5/02 ,  B32B17/06 ,  C01B33/158 ,  C01B33/146

CPC classification number: B32B5/26 ,  B01J13/0091 ,  B32B5/022 ,  B32B17/06 ,  B32B2260/023 ,  B32B2260/04 ,  C01B33/146 ,  C01B33/1585 ,  C03C15/00 ,  C04B28/24 ,  C04B35/82 ,  C04B2111/28 ,  C04B2201/32 ,  C04B2235/3201 ,  C04B2235/3427 ,  C04B2235/616 ,  C04B14/38 ,  C04B38/0045 ,  C04B14/42 ,  C04B16/06

Abstract: The present invention relates to a method of preparing an aerogel blanket in which, a surface of a base material for a blanket is activated and roughness and porosity of the surface of the base material for a blanket are increased to increase adhesion performance of a silica aerogel by inducing etching of a surface of a base material for a blanket using an acidic solution, and mechanical flexibility is increased and the generation of dust is minimized by further performing a gel deformation process of introducing cracks into the aerogel, and a low-dust and high-insulation aerogel blanket prepared according to the present invention.

公开(公告)号：US20180134568A1

公开(公告)日：2018-05-17

申请号：US15578641

申请日：2017-03-16

Applicant: LG CHEM, LTD. ,  INHA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION

Inventor： Ye Hon KIM ,  Je Kyun LEE ,  Hae Jin HWANG ,  Kyoung Jin LEE

IPC: C01B33/158

CPC classification number: C01B33/1585 ,  C01B33/158 ,  C01B33/159 ,  C01P2004/32 ,  C01P2004/61 ,  C01P2006/10 ,  C01P2006/12

Abstract: The present invention relates to a method for preparing spherical silica aerogel granules and spherical silica aerogel granules prepared thereby. The method for preparing spherical silica aerogel granules, which is suitable for mass production because droplets of a water glass solution are uniformly dispersed with a uniform size in a non-aqueous solvent using a surfactant in a certain step to reduce a process time and enhance productivity, may be provided. The spherical silica aerogel granules having a uniform size prepared by the method may be provided, wherein the spherical silica aerogel granules have a high working property and excellent flowability.

公开(公告)号：US20180127279A1

公开(公告)日：2018-05-10

申请号：US15577750

申请日：2016-06-01

Applicant: LG CHEM, LTD.

Inventor： Jong Hun KIM ,  Je Kyun LEE

IPC: C01B33/158 ,  B01J20/04

CPC classification number: C01B33/1585 ,  B01J20/04 ,  C01D1/02 ,  C01F5/02 ,  C01F5/06 ,  C01F5/30 ,  C01F11/24 ,  C01P2002/50 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/32

Abstract: Provided are a method of preparing a metal oxide-silica composite aerogel which includes preparing a silicate solution by dissolving water glass at a concentration of 0.125 M to 3.0 M, after adding and mixing a metal salt solution having a metal ion concentration of 0.125 M to 3.0 M to the silicate solution, precipitating metal oxide-silica composite precipitates by adjusting a pH of a resulting mixture to be in a range of 3 to 9, and separating and drying the metal oxide-silica composite precipitates, wherein the metal salt solution includes a magnesium (Mg)-containing metal salt in an amount such that an amount of magnesium ions is greater than 50 mol % based on a total mole of metal ions in the metal salt solution, and a metal oxide-silica composite aerogel having low tap density and high specific surface area prepared by the method.

公开(公告)号：US20180002182A1

公开(公告)日：2018-01-04

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: C01B33/158 ,  C08K3/36 ,  B01J13/00

CPC classification number: C01B33/158 ,  B01J13/0091 ,  C01B33/1585 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/90 ,  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.

公开(公告)号：US20170369326A1

公开(公告)日：2017-12-28

申请号：US15527663

申请日：2016-11-04

Applicant: LG CHEM, LTD.

Inventor： Young Hun KIM ,  Jin Hee OH ,  Je Kyun LEE

IPC: C01B33/154 ,  C01B33/159 ,  C07F7/10 ,  C09C1/30 ,  C01B33/158

CPC classification number: C01B33/154 ,  C01B33/1585 ,  C01B33/159 ,  C01P2006/11 ,  C07F7/10 ,  C09C1/30 ,  C09C1/3018 ,  C09C1/3027 ,  C09C1/3081

Abstract: The present invention relates to a method of preparing a high hydrophobic silica aerogel having a low tap density and a hydrophobic silica aerogel prepared thereby. The method of preparing a hydrophobic silica aerogel according to the present invention may have good productivity and economic efficiency, because preparation time is reduced by simultaneously performing surface modification and solvent substitution in a single step, and may control a degree of hydrophobicity of the prepared silica aerogel by controlling a surface modification reaction by including a step of adding ammonium hydroxide. Thus, a hydrophobic silica aerogel having excellent physical properties, such as tap density and specific surface area, as well as high hydrophobicity obtained by controlling the degree of hydrophobicity may be prepared.

公开(公告)号：US20160264427A1

公开(公告)日：2016-09-15

申请号：US14650519

申请日：2015-02-04

Applicant: LG CHEM, LTD.

Inventor： Kyoung Shil OH ,  Jin Hee OH ,  Ye Hon KIM ,  Dong Hyun CHO ,  Mi Ri KIM ,  Sung Min YU ,  Je Kyun LEE

IPC: C01B33/158

CPC classification number: C01B33/1585 ,  C01B33/16 ,  C01P2006/11 ,  C01P2006/12

Abstract: Provided is a method for preparing a hydrophobic silica aerogel by using a Soxhlet extraction, and a hydrophobic silica aerogel prepared by using the method. Since the preparation method according to the present invention may simultaneously perform washing and drying of a hydrophobic silica wet gel as well as solvent substitution and may remove an extraction solvent without an additional separation process, a hydrophobic silica aerogel having low tap density and high specific surface area may be easily prepared.

Abstract translation: 提供了通过使用索氏提取法制备疏水性二氧化硅气凝胶的方法和使用该方法制备的疏水性二氧化硅气凝胶。 由于根据本发明的制备方法可以同时进行疏水性二氧化硅湿凝胶的洗涤和干燥以及溶剂置换，并且可以在没有另外的分离过程的情况下除去萃取溶剂，具有低振实密度和高比表面积的疏水性二氧化硅气凝胶 区域可以容易地准备。

公开(公告)号：US20210147243A1

公开(公告)日：2021-05-20

申请号：US17064148

申请日：2020-10-06

Applicant: LG CHEM, LTD.

Inventor： Ye Hon KIM ,  Je Kyun LEE ,  Kyoung Shil OH

IPC: C01B33/152 ,  B65H37/00 ,  C01B33/141 ,  B29C39/00 ,  C01B33/158 ,  B29B15/12 ,  F16L59/06 ,  F16L59/02 ,  C01B33/159

Abstract: The present invention relates to a method for manufacturing an aerogel sheet. The method for manufacturing an aerogel sheet includes: a step (a) of preparing silica sol; a step (b) of preparing a gelling catalyst; a step (c) of injecting the silica sol, which is prepared in the step (a), to a surface of a blanket to impregnate the silica sol; and a step (d) of injecting the gelling catalyst, which is prepared in the step (b), to the surface of the blanket, into which the silica sol is impregnated, to gelate the silica sol.