公开(公告)号：US11780735B2

公开(公告)日：2023-10-10

申请号：US16735918

申请日：2020-01-07

Applicant: HITACHI CHEMICAL COMPANY, LTD.

Inventor： Tomohiko Kotake ,  Masato Miyatake ,  Hikari Murai

IPC: C01B33/158 ,  C08J9/28 ,  B32B9/00 ,  C01B33/18 ,  C08G77/04 ,  C08K3/36 ,  C08L83/04 ,  C08G77/06

CPC classification number: C01B33/1585 ,  B32B9/00 ,  C01B33/158 ,  C01B33/18 ,  C08G77/04 ,  C08J9/28 ,  C08G77/06 ,  C08K3/36 ,  C08L83/04

Abstract: A method for producing an aerogel composite includes drying a wet gel generated from a sol comprising a silica particles, and at least one selected from the group consisting of a silicon compound having a hydrolyzable functional group in a molecule, and a hydrolysis product of the silicon compound.

公开(公告)号：US11767670B2

公开(公告)日：2023-09-26

申请号：US16860619

申请日：2020-04-28

Applicant: Taiwan Aerogel Technology Material Co., Ltd.

Inventor： Jean-Hong Chen ,  Shiu-Shiu Chen ,  Sheng-Hong Pong

IPC: E04B1/78 ,  C01B33/157 ,  C01B33/158 ,  B01J13/00

CPC classification number: E04B1/78 ,  B01J13/0056 ,  B01J13/0065 ,  B01J13/0069 ,  B01J13/0091 ,  C01B33/157 ,  C01B33/1585

Abstract: The invention provides a method for producing a heat insulating material composed of a hydrophobic aerogel, and the method includes the steps of: (1) mixing step; (2) hydrolysis step; (3) condensation step; (4) aging step; and (5) drying step. In the method, a siloxane compound, an inorganic gel, and a halogen-free surfactant are mixed and then a sol-gel process is performed to produce the aerogel heat-insulating material without water-washing. The produced heat-insulating material has preferable strength, smooth appearance, and low shrinkage and can overcome the powder-dropping problem. By the provided method, an aerogel heat-insulating board can be produced, or an aerogel cold-resisting and heat-insulating blanket can be produced by mixing with a fiber or a foam material.

公开(公告)号：US11760646B2

公开(公告)日：2023-09-19

申请号：US16762675

申请日：2018-09-19

Applicant: LG CHEM, LTD.

Inventor： Myung Eun Oh ,  Kyu Reon Lee ,  Je Kyun Lee

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

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

Abstract: 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：US11708275B2

公开(公告)日：2023-07-25

申请号：US16902464

申请日：2020-06-16

Applicant: LG CHEM, LTD.

Inventor： Ye Hon Kim ,  Je Kyun Lee

IPC: B01J37/04 ,  B01J13/00 ,  B29B15/12 ,  B01J31/02 ,  B05C1/10 ,  D06B1/16 ,  B05C1/08 ,  B01J27/24 ,  C01B33/158 ,  C01B33/145

CPC classification number: C01B33/1585 ,  B01J13/0091 ,  B01J27/24 ,  B01J31/02 ,  B01J31/0202 ,  B01J37/04 ,  B05C1/08 ,  B05C1/10 ,  B29B15/122 ,  C01B33/145 ,  C01B33/158 ,  D06B1/16

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：US11666880B2

公开(公告)日：2023-06-06

申请号：US17947414

申请日：2022-09-19

Applicant: LG CHEM, LTD.

Inventor： Jong Hun Kim ,  Je Kyun Lee

IPC: B01J13/00 ,  C01B33/158

CPC classification number: B01J13/0091 ,  C01B33/158

Abstract: Provided are a method of preparing a metal oxide-silica composite aerogel, and a metal oxide-silica composite aerogel having an excellent weight reduction property prepared by the method. The method includes a step of adding an acid catalyst to a first water glass solution to prepare an acidic water glass solution (step 1); a step of adding a metal ion solution to the acidic water glass solution to prepare a precursor solution (step 2); and a step of adding a second water glass solution to the precursor solution and performing a gelation reaction (step 3) to yield a metal oxide-silica composite wet gel, wherein, in steps 2 and 3, bubbling of an inert gas is performed during the adding of the metal ion solution or the second water glass solution, respectively.

公开(公告)号：US20230134383A1

公开(公告)日：2023-05-04

申请号：US18147132

申请日：2022-12-28

Applicant: Aspen Aerogels, Inc.

Inventor： Owen R. Evans ,  Kathryn E. deKrafft ,  Nicholas A. Zafiropoulos ,  Wenting Dong ,  David J. Mihalcik ,  George L. Gould ,  Irene Melnikova

IPC: C08K3/36 ,  C01B33/158 ,  C01B33/159 ,  B01J13/00 ,  C08K3/22 ,  C08K3/34 ,  C08K3/38 ,  C08K3/04

Abstract: The present disclosure provides an aerogel composition which is durable and easy to handle, which has favorable performance in aqueous environments, and which also has favorable combustion and self-heating properties. Also provided is a method of preparing an aerogel composition which is durable and easy to handle, which has favorable performance in aqueous environments, and which has favorable combustion and self-heating properties. Further provided is a method of improving the hydrophobicity, the liquid water uptake, the heat of combustion, or the onset of thermal decomposition temperature of an aerogel composition.

公开(公告)号：US20230085627A1

公开(公告)日：2023-03-23

申请号：US18056067

申请日：2022-11-16

Applicant: Aspen Aerogels, Inc.

Inventor： David Mihalcik ,  Kathryn Elizabeth deKrafft ,  Nicholas Anthony Zafiropoulos ,  Owen Richard Evans ,  George L. Gould ,  Wibke Lolsberg

IPC: B01J13/00 ,  C01B33/158 ,  C08K5/00 ,  C08L61/28 ,  C08L75/04

Abstract: The current disclosure provides reinforced aerogel compositions that are durable and easy to handle, have favorable performance in aqueous environments, have favorable insulation properties, and have favorable, reaction to fire, combustion and flame-resistance properties. Also provided are methods of preparing or manufacturing such reinforced aerogel compositions. In certain embodiments, the composition has a silica-based aerogel framework, reinforced with an open-cell macroporous framework, and includes one or more fire-class additives, where the silica-based aerogel framework comprises at least one hydrophobic-bound silicon and the composition or each of its components has desired properties.

公开(公告)号：US11577490B2

公开(公告)日：2023-02-14

申请号：US16586858

申请日：2019-09-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuma Oikawa ,  Shigeaki Sakatani ,  Kazuhiro Nishikawa ,  Daido Komyoji

IPC: B32B9/00 ,  C01B33/16 ,  C04B14/06 ,  C01B33/158 ,  B32B5/02 ,  B32B38/08 ,  D06N3/12 ,  B32B5/18

Abstract: A heat insulating material includes an aerogel that has macro-pores and meso-pores. A method for manufacturing a heat insulating material, including: a sol preparation step of adding a gelling agent into sodium silicate such that a molar ratio of the gelling agent relative to NaO2 is 0.1 to 0.75, and adjusting a sol into which macro-pores are introduced by leaving unreacted Na and non-cross-linked oxygen in a siloxane skeleton; an impregnating and gelling step of impregnating a nonwoven fabric fiber structure with the sol to form a composite of hydrogel-nonwoven fabric fiber; a hydrophobizating step of mixing the formed composite of hydrogel-nonwoven fabric fiber with a silylating agent to modify a surface thereof; and a drying step of removing a liquid contained in the surface modified composite of hydrogel-nonwoven fabric fiber by drying under a temperature and pressure lower than respective critical values.

公开(公告)号：US20230024770A1

公开(公告)日：2023-01-26

申请号：US17947414

申请日：2022-09-19

Applicant: LG CHEM, LTD.

Inventor： Jong Hun KIM ,  Je Kyun LEE

IPC: B01J13/00 ,  C01B33/158

Abstract: Provided are a method of preparing a metal oxide-silica composite aerogel, and a metal oxide-silica composite aerogel having an excellent weight reduction property prepared by the method. The method includes a step of adding an acid catalyst to a first water glass solution to prepare an acidic water glass solution (step 1); a step of adding a metal ion solution to the acidic water glass solution to prepare a precursor solution (step 2); and a step of adding a second water glass solution to the precursor solution and performing a gelation reaction (step 3) to yield a metal oxide-silica composite wet gel, wherein, in steps 2 and 3, bubbling of an inert gas is performed during the adding of the metal ion solution or the second water glass solution, respectively.

公开(公告)号：US20220371902A1

公开(公告)日：2022-11-24

申请号：US17621830

申请日：2020-09-03

Applicant: LG CHEM, LTD.

Inventor： Tae Gyeong Kang ,  Bong June Kim ,  Se Won Baek ,  Hyun Woo Jeon ,  Sung Min Yu ,  Young Hun Kim ,  Sang Woo Park

IPC: C01B33/158 ,  C01B33/159

Abstract: The present invention provides an aerogel blanket including a blanket base, aerogel coupled on the surface of the blanket base, and aerogel located at a space between the blanket bases, the aerogel coupled on the surface of the blanket base is 50 wt % based on the total weight of aerogel, wherein the aerogel blanket has the number of aerogel particles separated from the aerogel blanket ranging from 13,600 to 90,000 per ft3, when vibrating the aerogel blanket at a frequency of 1 Hz to 30 Hz for 2 hours to 10 hours.