公开(公告)号：US12030782B2

公开(公告)日：2024-07-09

申请号：US16754545

申请日：2019-02-14

申请人： LG CHEM, LTD.

发明人： Young Hun Kim ,  Je Kyun Lee ,  Myung Eun Oh

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

CPC分类号： C01B33/1585 ,  B01J13/0091 ,  C01B33/159 ,  C01P2004/60 ,  C01P2006/12

摘要： Provided is a method for producing hydrophobic silica aerogel granules and hydrophobic silica aerogel granules produced thereby, the hydrophobic silica aerogel granules having a suppressed level of specific surface area deterioration and scattering properties. In the method for producing the hydrophobic silica aerogel granules, surface modification, gelation, and solvent substitution can be simultaneously performed in one step, thereby decreasing production time and increasing productivity. Also, by adjusting the addition amount of a non-polar organic solvent when proceeding with a reaction, hydrophobic silica aerogel granules with suppressed scattering properties can be produced. In addition, the hydrophobic silica aerogel granules are silica aerogel particles induced to agglomerate with each other through physical bonding, so that there is an advantage in that the granules can be easily changed into a powder form, thereby having excellent industrial applicability.

公开(公告)号：US11760646B2

公开(公告)日：2023-09-19

申请号：US16762675

申请日：2018-09-19

申请人： LG CHEM, LTD.

发明人： Myung Eun Oh ,  Kyu Reon Lee ,  Je Kyun Lee

IPC分类号： C01B33/158 ,  C09D7/61 ,  C01B33/159 ,  C04B28/26 ,  C04B111/00

CPC分类号： C01B33/1585 ,  C01B33/159 ,  C04B28/26 ,  C09D7/61 ,  C01P2006/90 ,  C04B2111/00568 ,  C04B2111/00577

摘要： Provided is a silica aerogel blanket capable of preventing deterioration of heat insulating performance while reducing dust generation, and method for manufacturing the same. The method manufactures a low-dust silica aerogel blanket by separately adding a silica sol to prevent an opacifying agent from being exposed to the surface of the silica aerogel blanket.

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.

公开(公告)号：US11365126B2

公开(公告)日：2022-06-21

申请号：US17057251

申请日：2019-12-13

申请人： LG CHEM, LTD.

发明人： Myung Eun Oh ,  Se Won Baek ,  Kyu Reon Lee

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

摘要： 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.