公开(公告)号：US20230294998A1

公开(公告)日：2023-09-21

申请号：US18018336

申请日：2021-08-05

Applicant: LG CHEM, LTD.

Inventor： Kyung Seok MIN ,  Se Won BAEK ,  Sang Woo PARK ,  Kyoung Shil OH

IPC: C01B33/158 ,  B01D53/00

CPC classification number: C01B33/1585 ,  B01D53/002

Abstract: Provided is a method of manufacturing a silica aerogel blanket, and an apparatus for manufacturing a silica aerogel blanket used in the method. The method includes: (1) drying a silica hydrogel through a supercritical drying process using a supercritical extractor; (2) separating an extract discharged from the supercritical extractor into a gaseous phase including CO2 and a liquid phase including a solvent through a separator to discharge the gaseous phase and the liquid phase; and (3) condensing the gaseous phase including CO2 discharged from the separator in a condenser, wherein the separation in the separator is performed under the condition of a pressure of 60 bar to 90 bar, and the gaseous phase including CO2 discharged from the separator is condensed in the condenser so that the gaseous phase has a temperature of 10° C. or higher and a pressure of 60 bar to 90 bar.

公开(公告)号：US20230286811A1

公开(公告)日：2023-09-14

申请号：US18016527

申请日：2021-07-23

Applicant: LG CHEM, LTD.

Inventor： Young Hun KIM ,  Tae Gyeong KANG ,  Joon Ho SHIN ,  Se Won BAEK ,  Kyoung Shil OH ,  Sang Woo PARK ,  Sung Jin YOO

IPC: C01B33/158 ,  C01B33/152

CPC classification number: C01B33/1585 ,  C01B33/152

Abstract: Provided is a method of manufacturing a silica aerogel, which includes: (1) manufacturing a hydrogel composite; (2) washing the manufactured hydrogel composite with a washing solvent; and (3) drying the washed hydrogel composite, wherein, impurities are removed from the hydrogel composite in Step (2), and the washing solvent is heated to a temperature equal to or higher than the boiling point (b.p.) of the washing solvent.

公开(公告)号：US20220250922A1

公开(公告)日：2022-08-11

申请号：US17427018

申请日：2020-09-28

Applicant: LG CHEM, LTD.

Inventor： Hyun Woo JEON ,  Se Won BAEK ,  Kyu Reon LEE ,  Mi Ri KIM

IPC: C01B33/158 ,  F16L59/02

Abstract: The present invention relates to an aerogel blanket including an aerogel structure and a substrate for a blanket, wherein the aerogel structure includes a three-dimensional network structure formed by a plurality of aerogel particles aggregated or bonded, and an average aerogel structure size (D50) measured by spraying 10 ml of dry powder of the aerogel structure with air at a pressure of 15 psi, and using laser diffraction of 780 nm wavelength is 5 μm to 10 μm.

公开(公告)号：US20210206923A1

公开(公告)日：2021-07-08

申请号：US17057292

申请日：2019-11-27

Applicant: LG CHEM, LTD.

Inventor： Kyu Reon LEE ,  Kyoung Shil OH ,  Jong Hun KIM ,  Se Won BAEK

IPC: C08G77/02 ,  C08J9/28 ,  C08J3/075 ,  C01B33/158 ,  C01B33/143

Abstract: A method for synthesizing a pre-hydrolyzed polysilicate, wherein a polysilicate is applied as a reactant when synthesizing the pre-hydrolyzed polysilicate, and the total amount of water added in the reaction system is specified. The method is capable of omitting a condensation reaction by applying a polysilicate as a reactant, thereby significantly shortening synthesis time and reducing production costs when compared with a typical synthesis method in which alkoxysilane-based monomer compound is used as a reactant. In addition, the gelation reaction time and the weight average molecular weight can be easily controlled, and a pre-hydrolyzed polysilicate excellent in storage stability and processability can be synthesized.

公开(公告)号：US20210198112A1

公开(公告)日：2021-07-01

申请号：US17057251

申请日：2019-12-13

Applicant: LG CHEM, LTD.

Inventor： Myung Eun OH ,  Se Won BAEK ,  Kyu Reon LEE

IPC: C01B33/158 ,  B01J13/00 ,  C01B33/143

Abstract: Provided is a method for manufacturing an aerogel blanket having improved processability by reducing manufacturing time and cost, the method including the steps of mixing a precursor material, an acid catalyst and a hydrous alcohol to prepare a sol, depositing a substrate in the sol, and reacting with a gaseous silazane-based compound to form a gel and to perform aging and surface modification reaction simultaneously to form a wet gel blanket, and drying the wet gel blanket to manufacture an aerogel blanket.

公开(公告)号：US20210155486A1

公开(公告)日：2021-05-27

申请号：US17056872

申请日：2019-11-27

Applicant: LG CHEM, LTD.

Inventor： Tae Gyeong KANG ,  Se Won BAEK

IPC: C01B33/158 ,  C01B33/141 ,  C01B33/152 ,  B01J13/00

Abstract: A method for manufacturing an aerogel blanket, the method capable of simplifying manufacturing equipment by performing gelation while rotating a reaction vessel, improving manufacturing efficiency by controlling manufacturing time regardless of the thickness of an aerogel blanket and improving thermal conductivity by uniformly forming an aerogel in a substrate for blanket.

公开(公告)号：US20160200657A1

公开(公告)日：2016-07-14

申请号：US14914233

申请日：2014-08-26

Applicant: LG CHEM, LTD.

Inventor： Jong Hun SONG ,  Se Won BAEK ,  Sul Hee YOO ,  Yoon Jae MIN

IPC: C07C51/44 ,  B01D11/04 ,  B01D3/00 ,  C07C51/48

CPC classification number: C07C51/44 ,  B01D3/00 ,  B01D3/143 ,  B01D11/04 ,  C07C51/43 ,  C07C51/47 ,  C07C51/48 ,  Y02P20/57 ,  C07C57/04

Abstract: This disclosure relates to a method for continuous recovery of (meth)acrylic acid and an apparatus used for the recovery method. The method of continuous recovery of (meth)acrylic acid according to the present invention may minimize loss of (meth)acrylic acid particularly in the distillation process, and yet enables stable operation of the distillation process and energy reduction.

Abstract translation: 本公开涉及连续回收（甲基）丙烯酸的方法和用于回收方法的装置。 根据本发明的连续回收（甲基）丙烯酸的方法可以使（甲基）丙烯酸的损失最小化，特别是在蒸馏过程中，使蒸馏过程稳定运行和能量降低。

公开(公告)号：US20240228303A9

公开(公告)日：2024-07-11

申请号：US18537294

申请日：2023-12-12

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 is 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：US20230399233A1

公开(公告)日：2023-12-14

申请号：US18239443

申请日：2023-08-29

Applicant: LG CHEM, LTD.

Inventor： Mi Ri KIM ,  Sang Woo PARK ,  Se Won BAEK ,  Moo Kwang SHIN ,  Sung Min YU ,  Kyoung Shil OH

IPC: C01B33/158 ,  C01B33/146 ,  C01B33/155 ,  B05C5/02

CPC classification number: C01B33/1585 ,  C01B33/146 ,  C01B33/155 ,  B05C5/0245

Abstract: The present invention relates to a device for producing an aerogel blanket, and a method for producing an aerogel blanket. The device for producing an aerogel blanket according to present invention is a device for producing an aerogel blanket, including a supply part, which supplies a fiber containing sol, and a conveyor belt which moves the fiber supplied from the supply part, wherein the conveyor belt is provided in multiple levels to move the fiber while reversing the fiber, and a start time at which the conveyor belt reverses the fiber is before fluidity of the sol is completely lost.

公开(公告)号：US20230391628A1

公开(公告)日：2023-12-07

申请号：US18035583

申请日：2022-05-26

Applicant: LG CHEM, LTD.

Inventor： Mi Ri KIM ,  Sang Woo PARK ,  Se Won BAEK ,  Sung Min YU ,  Kyoung Shil OH

IPC: C01B33/158 ,  C01B33/146 ,  C01B33/155

CPC classification number: C01B33/1585 ,  C01B33/146 ,  C01B33/155

Abstract: The present disclosure relates to a device for producing an aerogel blanket, and a method for producing an aerogel blanket. The device for producing an aerogel blanket according to present disclosure is a device for producing an aerogel blanket, including a supply part, which supplies a fiber containing sol, and a conveyor belt which moves the fiber supplied from the supply part, wherein the conveyor belt is provided in multiple levels to move the fiber while reversing the fiber, and a start time at which the conveyor belt reverses the fiber is before fluidity of the sol is completely lost.