公开(公告)号：US20180193825A1

公开(公告)日：2018-07-12

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

CPC classification number: B01J31/0212 ,  B01J21/02 ,  B01J31/02 ,  C01B13/14 ,  C01B33/158 ,  C01B33/1585 ,  C01P2004/03 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16

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：US20180179074A1

公开(公告)日：2018-06-28

申请号：US15738511

申请日：2017-02-03

Applicant: LG CHEM, LTD.

Inventor： Ye Hon KIM ,  Je Kyun LEE

IPC: C01B33/158 ,  C01B33/145 ,  B01J31/02 ,  B01J27/24 ,  B01J37/04

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：US20180179073A1

公开(公告)日：2018-06-28

申请号：US15554383

申请日：2016-03-28

Applicant: LG CHEM, LTD

Inventor： Kyoung Shil OH ,  MI RI KIM ,  Je Kyun LEE

IPC: C01B33/158 ,  C01B33/155 ,  B05D1/18 ,  B05D3/02

CPC classification number: C01B33/1585 ,  B05D1/18 ,  B05D3/0254 ,  C01B33/14 ,  C01B33/155 ,  C01P2006/32

Abstract: In the present invention are provided a method for preparing a silica aerogel-containing blanket, and a blanket which includes a silica aerogel and is manufactured using the same, wherein the method includes a step for preparing a reaction solution by reacting a silazane-based surface modification agent with an alcohol-based compound, a step for preparing a silica gel-base material composite by adding a silica precursor, water, and a polar organic solvent to the reaction solution to prepare a silica sol, and then immersing a base material for a blanket in the prepared silica sol to gelate the silica sol, and a step for drying the silica gel-base material composite.

公开(公告)号：US20180162737A1

公开(公告)日：2018-06-14

申请号：US15736725

申请日：2016-12-15

Applicant: LG CHEM, LTD.

Inventor： Hee Jung CHOI ,  Kyoung Shil OH ,  Yeong Rae CHANG ,  Je Kyun LEE

IPC: C01B33/158 ,  C08G77/18 ,  C08G77/06 ,  C08G77/38 ,  C07F7/28 ,  C07F7/08

CPC classification number: C01B33/1585 ,  B01J13/0091 ,  C01B33/158 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16 ,  C01P2006/37 ,  C07F7/08 ,  C07F7/087 ,  C07F7/0874 ,  C07F7/28 ,  C08G77/06 ,  C08G77/18 ,  C08G77/38 ,  C09K3/30

Abstract: The present disclosure provides an aerogel precursor including an alkoxydisiloxane-based prepolymer and having a functional group derived from a hydrophobic sol-gel forming agent of the following Chemical Formula 1 on a surface thereof, and therefore, capable of enhancing high temperature thermal stability of an aerogel providing hydrophobic pores having uniform pore size distribution when preparing an aerogel, and an aerogel prepared using the same: (in Chemical Formula 1, M, R, R1 to R4 are the same as defined in the specification.)

公开(公告)号：US20180134566A1

公开(公告)日：2018-05-17

申请号：US15569056

申请日：2017-03-08

Applicant: LG CHEM, LTD.

Inventor： Mi Ri KIM ,  Kyoung Shil OH ,  Je Kyun LEE ,  Young Hun KIM

IPC: C01B33/158 ,  F16L59/02

CPC classification number: C01B33/1585 ,  B01J13/0091 ,  B01J31/02 ,  C01B33/146 ,  C01B33/154 ,  C01B33/158 ,  F16L59/026 ,  F16L59/06 ,  F26B5/00 ,  F26B21/14

Abstract: The present invention relates to a method for producing an aerogel blanket exhibiting excellent hydrophobicity at high temperatures and an aerogel blanket produced thereby. The present invention uses a mixture of silica sol and a hydrophobic aerogel powder as an aerogel precursor and thus can achieve hydrophobicity in the internal structure as well as on the surface of the aerogel included in the aerogel blanket. Accordingly, the aerogel blanket can attain high hydrophobicity and thus can exhibit excellent hydrophobicity retention ability even in high-temperature applications.

公开(公告)号：US20180029892A1

公开(公告)日：2018-02-01

申请号：US15547970

申请日：2016-03-28

Applicant: LG CHEM, LTD.

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

IPC: C01B33/158 ,  C01G23/047

CPC classification number: C01B33/1585 ,  B01D11/0203 ,  C01B33/159 ,  C01G23/047 ,  C01P2002/88 ,  C01P2004/04 ,  C01P2004/61 ,  C01P2004/62 ,  C08G77/02 ,  C08G77/18 ,  H01L23/3737

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.