公开(公告)号：US09834446B2

公开(公告)日：2017-12-05

申请号：US14653189

申请日：2015-02-04

申请人： LG CHEM, LTD.

发明人： Mi Ri Kim ,  Kyoung Shil Oh ,  Ye Hon Kim ,  Dong Hyun Cho ,  Young Sam Kim ,  Sung Min Yu ,  Jin Hee Oh ,  Je Kyun Lee

IPC分类号： C01B33/158 ,  C01B33/16 ,  B01J13/00

CPC分类号： C01B33/1585 ,  B01J13/0091 ,  C01B33/163 ,  C01B33/166 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16 ,  C01P2006/17

摘要： Provided are a method for preparing a hydrophobic silica aerogel by the combined use of a first surface modifier and a second surface modifier, and a hydrophobic silica aerogel prepared by using the method. A hydrophobic silica aerogel having excellent physical properties and pore characteristics as well as a high degree of hydrophobicity may be prepared with high efficiency by the preparation method according to the present invention.

公开(公告)号：US11142463B2

公开(公告)日：2021-10-12

申请号：US16304637

申请日：2018-03-22

申请人： LG CHEM, LTD.

发明人： Mi Ri Kim ,  Je Kyun Lee ,  Kyoung Shil Oh

IPC分类号： C01B33/158 ,  C01B33/142

摘要： The present invention relates to a method for producing a silica aerogel blanket, the method comprising recovering a supercritical waste liquid generated after performing a step of supercritical drying, neutralizing the recovered supercritical waste liquid by adding an acid thereto for recycling, and reusing the recycled supercritical waste liquid, and a silica aerogel blanket produced thereby.

公开(公告)号：US10882750B2

公开(公告)日：2021-01-05

申请号：US15554383

申请日：2016-03-28

申请人： LG CHEM, LTD

发明人： Kyoung Shil Oh ,  Mi Ri Kim ,  Je Kyun Lee

IPC分类号： C01B33/158 ,  C01B33/155 ,  C01B33/14 ,  B05D1/18 ,  B05D3/02

摘要： 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：US11084728B2

公开(公告)日：2021-08-10

申请号：US16304637

申请日：2018-03-22

申请人： LG CHEM, LTD.

发明人： Mi Ri Kim ,  Je Kyun Lee ,  Kyoung Shil Oh

IPC分类号： C01B33/158 ,  C01B33/142

摘要： The present invention relates to a method for producing a silica aerogel blanket, the method comprising recovering a supercritical waste liquid generated after performing a step of supercritical drying, neutralizing the recovered supercritical waste liquid by adding an acid thereto for recycling, and reusing the recycled supercritical waste liquid, and a silica aerogel blanket produced thereby.

公开(公告)号：US10829380B2

公开(公告)日：2020-11-10

申请号：US16067066

申请日：2017-09-12

申请人： LG CHEM, LTD.

发明人： Mi Ri Kim ,  Je Kyun Lee

IPC分类号： C01B33/149 ,  F16L59/147 ,  C01B33/158 ,  C01B33/159 ,  C01B33/155 ,  F16L59/02 ,  F16L59/06 ,  B01J13/00 ,  B01J27/04 ,  B01J27/10 ,  B01J27/24

摘要： The present invention relates to a silica aerogel blanket for ultra-high temperature, a method for producing the same, and a method for constructing the same. More specifically, the present invention provides a method for producing a silica aerogel blanket, the method capable of suppressing the generation of a bad odor during construction by including a step of heat treatment after producing a hydrophobic silica aerogel blanket so as to remove a volatile organic compound (VOC), a silica aerogel blanket produced thereby, and a method for constructing a silica aerogel blanket for ultra-high temperature, the method capable of suppressing the generation of a bad odor during the construction of the silica aerogel blanket produced by the above-mentioned production method on an ultra-high temperature piping equipment, and at the same time, preventing the loss of heat insulation performance due to moisture in the air.

公开(公告)号：US20240228304A1

公开(公告)日：2024-07-11

申请号：US18431792

申请日：2024-02-02

申请人： LG CHEM, LTD.

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

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

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

摘要： 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：US10260670B2

公开(公告)日：2019-04-16

申请号：US15548621

申请日：2016-02-04

申请人： LG CHEM, LTD.

发明人： Mi Ri Kim ,  Jin Hee Oh ,  Kyoung Shil Oh ,  Je Kyun Lee

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

摘要： 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 may be prepared by the minimal use of a surface modifier without a surface modification step by the above method.

公开(公告)号：US10197211B2

公开(公告)日：2019-02-05

申请号：US15548621

申请日：2016-02-04

申请人： LG CHEM, LTD.

发明人： Mi Ri Kim ,  Jin Hee Oh ,  Kyoung Shil Oh ,  Je Kyun Lee

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

摘要： 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 may be prepared by the minimal use of a surface modifier without a surface modification step by the above method.

公开(公告)号：US09862614B2

公开(公告)日：2018-01-09

申请号：US14650519

申请日：2015-02-04

申请人： LG CHEM, LTD.

发明人： Kyoung Shil Oh ,  Jin Hee Oh ,  Ye Hon Kim ,  Dong Hyun Cho ,  Mi Ri Kim ,  Sung Min Yu ,  Je Kyun Lee

IPC分类号： C01B33/158 ,  C01B33/16

CPC分类号： C01B33/1585 ,  C01B33/16 ,  C01P2006/11 ,  C01P2006/12

摘要： 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.

公开(公告)号：US12097478B2

公开(公告)日：2024-09-24

申请号：US17425906

申请日：2020-09-01

申请人： LG CHEM, LTD.

发明人： Myung Eun Oh ,  Mi Ri Kim ,  Tae Kyeong Kang ,  Se Won Baek

IPC分类号： B01J13/00 ,  B01J3/00 ,  C01B33/155 ,  C01B33/158 ,  C01B33/159

CPC分类号： B01J13/0091 ,  B01J3/008 ,  C01B33/155 ,  C01B33/1585 ,  C01B33/159 ,  C01P2006/32

摘要： The present invention relates to a method for manufacturing an aerogel blanket, the method including 1) introducing a catalyzed sol and a substrate for a blanket into a reaction vessel to impregnate the catalyzed sol into the substrate for a blanket, and 2) rotating the substrate for a blanket into which the catalyzed sol is impregnated to perform gelation, wherein the catalyzed sol includes a silica precursor composition, and the silica precursor composition includes a silicate containing a hydrophobic group and a tetraalkyl silicate, wherein a molar ratio of the silicate containing a hydrophobic group and the tetraalkyl silicate is 60:40 to 98:2.