公开(公告)号：US20170305749A1

公开(公告)日：2017-10-26

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: C01B33/158

CPC classification number: C01B33/1585 ,  B01J13/0091 ,  C01B33/158 ,  C01P2006/10 ,  C01P2006/12

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：US20230365416A1

公开(公告)日：2023-11-16

申请号：US18225626

申请日：2023-07-24

Applicant: LG CHEM, LTD.

Inventor： Tae Gyeong KANG ,  Je Kyun LEE

IPC: C01B33/158 ,  C01B33/145 ,  C01B33/155 ,  C02F1/70

CPC classification number: C01B33/1585 ,  C01B33/145 ,  C01B33/155 ,  C02F1/705 ,  C02F2101/16

Abstract: The present invention relates to a method for recycling supercritical waste liquid generated during a process of producing a silica aerogel blanket, and a method for producing a silica aerogel blanket reusing supercritical waste liquid recycled thereby. More particularly, the present invention provides a method for recycling supercritical waste liquid and a method for producing a silica aerogel blanket capable of reducing the production costs and preventing the deterioration in thermal insulation performance of a silica aerogel blanket by adding a metal salt to the supercritical waste liquid by the recycling method.

公开(公告)号：US20210292176A1

公开(公告)日：2021-09-23

申请号：US16334688

申请日：2017-11-01

Applicant: LG CHEM, LTD.

Inventor： Hyun Woo JEON ,  Je Kyun LEE

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

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：US20200332168A1

公开(公告)日：2020-10-22

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

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：US20200308011A1

公开(公告)日：2020-10-01

申请号：US16902464

申请日：2020-06-16

Applicant: LG CHEM, LTD.

Inventor： Ye Hon KIM ,  Je Kyun LEE

IPC: C01B33/158 ,  B01J37/04 ,  B01J13/00 ,  B29B15/12 ,  B01J31/02 ,  B05C1/10 ,  D06B1/16 ,  B01J27/24 ,  C01B33/145

Abstract: The present invention relates to an apparatus of manufacturing an aerogel sheet. The apparatus of manufacturing the aerogel sheet includes: a fixing vessel into which a blanket is inserted; and an impregnation device putting a silica sol precursor into the blanket inserted into the fixing vessel to impregnate and gelate the silica sol precursor, wherein the impregnation device includes a rotation roller moving from one end to the other end of a top surface of the blanket while rotating to put the stored silica sol precursor into the blanket and thereby to impregnate and gelate the silica sol precursor.

公开(公告)号：US20200048100A1

公开(公告)日：2020-02-13

申请号：US16657678

申请日：2019-10-18

Applicant: LG Chem, Ltd.

Inventor： Sung Min YU ,  Kyoung Shil OH ,  Je Kyun LEE

IPC: C01B33/158 ,  C01G23/047 ,  C01B33/159

Abstract: The present disclosure provides a silica aerogel-including blanket including a substrate for a blanket; and a silica aerogel and an opacifying agent locating at least one of on a surface of and inside the substrate for a blanket, wherein the opacifying agent is a second particulate with inorganic particles of a first particulate being aggregated, and includes 1 to 5 of the inorganic particles per unit volume of 1 μm3, and a method for preparing the same. The silica aerogel-including blanket according to the present disclosure is capable of exhibiting flame retardancy as well as an excellent insulation property, particularly, an excellent insulation property at high temperatures, by including an opacifying agent having excellent dispersibility and high surface activity through chemical etching.

公开(公告)号：US20190337811A1

公开(公告)日：2019-11-07

申请号：US16074385

申请日：2017-09-29

Applicant: LG CHEM, LTD.

Inventor： Jong Hun KIM ,  Je Kyun LEE

IPC: C01B33/40

Abstract: The present invention relates to a method for producing synthetic hectorite at a low temperature and atmospheric pressure and synthetic hectorite produced by the same, and more particularly, to a method for producing synthetic hectorite and synthetic hectorite produced by the same in which: a step of forming Li—Mg precipitates is introduced and thereby ensures an improved crystallization reaction condition and synthetic hectorite having excellent properties; and composition ratios of reactants are controlled, and thus, property control is easy.

公开(公告)号：US20190107242A1

公开(公告)日：2019-04-11

申请号：US16216718

申请日：2018-12-11

Applicant: LG CHEM, LTD.

Inventor： Mi Ri KIM ,  Jin Hee OH ,  Kyoung Shil OH ,  Je Kyun LEE

IPC: F16L59/02 ,  C01B33/158 ,  C09D1/00 ,  B05D1/18 ,  C09D7/63 ,  C01B33/155

Abstract: Provided are a preparation method of a silica aerogel-containing blanket which includes mixing a water glass solution, a polar organic solvent, and a silazane-based surface modifier to prepare a sol, preparing a silica gel-base material composite by immersion and gelation of a base material for a blanket in the sol, and drying the silica gel-base material composite, and a silica aerogel-containing blanket prepared by using the preparation method. A silica aerogel-containing blanket having a high degree of hydrophobicity as well as excellent physical properties, particularly, low tap density, high porosity, and excellent mechanical flexibility can be prepared by the minimal use of a surface modifier without a surface modification step by the above method.

公开(公告)号：US20180355551A1

公开(公告)日：2018-12-13

申请号：US15570693

申请日：2017-02-03

Applicant: LG CHEM LTD

Inventor： Ye Hon KIM ,  Je Kyun LEE

IPC: D06M13/507 ,  C01B33/158 ,  B01J27/24 ,  B01J31/02 ,  B01J35/12 ,  B01J37/04 ,  B05C3/09 ,  D06M11/60 ,  D06B5/22

CPC classification number: D06M13/507 ,  B01J19/249 ,  B01J27/24 ,  B01J31/02 ,  B01J31/0202 ,  B01J35/12 ,  B01J37/04 ,  B01J2219/245 ,  B01J2219/2453 ,  B01J2219/2458 ,  B01J2219/246 ,  B01J2219/247 ,  B01J2219/2496 ,  B05C3/09 ,  C01B33/158 ,  C01B33/1585 ,  D06B5/22 ,  D06M11/60 ,  D06M2400/02

Abstract: The present invention relates to an apparatus of manufacturing an aerogel sheet. The apparatus of manufacturing the aerogel sheet includes: a plurality of fixing vessels into which a fiber sheet is inserted; and an impregnation vessels provided with an accommodation part in which the plurality of fixing vessels are stacked in multistage and a silica precursor injection part which injects a silica precursor into the accommodation part to impregnate the silica precursor into the fiber sheet inserted into each of the fixing vessels.

公开(公告)号：US20180312407A1

公开(公告)日：2018-11-01

申请号：US15765136

申请日：2017-10-10

Applicant: LG CHEM, LTD.

Inventor： Kyoung Shil OH ,  Je Kyun LEE ,  Sung Min YU

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

CPC classification number: C01B33/1585 ,  B05D1/18 ,  B05D3/00 ,  B05D3/105 ,  B05D7/02 ,  C01B33/158 ,  C01B33/159 ,  D06M11/44 ,  D06M11/45 ,  D06M11/79 ,  D06M13/507 ,  D06M13/513 ,  D06M13/517 ,  D06M15/643 ,  D06M23/08 ,  D06M23/105 ,  D06M2200/30 ,  D06M2400/02 ,  F16L59/026 ,  F16L59/028

Abstract: The present invention relates to a low-dust, high insulation aerogel blanket and a method for producing the same. More specifically, the present invention provides a method for producing a low-dust, high insulation aerogel blanket, wherein a plate type Mg(OH)2.MgO.SiO2 powder is added to a silica sol, thereby being capable of reducing the generation of dust with excellent flame retardancy and thermal conductivity, and an aerogel blanket produced thereby.