公开(公告)号：US20240351889A1

公开(公告)日：2024-10-24

申请号：US18684228

申请日：2022-08-10

Applicant: MERCK PATENT GMBH

Inventor： Eric JACQUINOT ,  Leo HANUS ,  Geary GRAHAM

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

CPC classification number: C01B33/158 ,  C01B33/1415 ,  C01B33/152 ,  C01P2006/80

Abstract: The present application relates to a method for producing silica particles, and to the silica particles produced by such method. The present application further relates to compositions comprising the silica particles produced by such method as well as to uses of such silica particles and compositions comprising such silica particles.

公开(公告)号：US11691885B2

公开(公告)日：2023-07-04

申请号：US16644583

申请日：2018-09-05

Applicant: FUSO CHEMICAL CO., LTD.

Inventor： Kazui Omokawa ,  Hirokazu Yokota ,  Kenichi Takeuchi ,  Yuma Negishi ,  Tomoko Kiseki ,  Munenori Komoto

IPC: C01B33/159 ,  C01B33/152 ,  G03G9/097

CPC classification number: C01B33/159 ,  C01B33/152 ,  G03G9/09725 ,  C01P2002/86 ,  C01P2006/82

Abstract: Provided is a hydrophobic silica powder that can be obtained by the sol-gel process, and that is excellent in charge properties. The hydrophobic silica powder has a hydrophobicity of 50% or more, a saturated water content of 4% or less, and a nitrogen content of 0.05% or more.

公开(公告)号：US20180179075A1

公开(公告)日：2018-06-28

申请号：US15738516

申请日：2017-02-07

Applicant: LG CHEM, LTD.

Inventor： Ye Hon KIM ,  Je Kyun LEE ,  Kyoung Shil OH

IPC: C01B33/158 ,  C01B33/145 ,  C01B33/155 ,  B05C5/02 ,  B05C9/12 ,  B05C11/02 ,  B05D1/26 ,  B05D3/02

CPC classification number: C01B33/1585 ,  B05C5/0245 ,  B05C9/12 ,  B05C11/028 ,  B05D1/26 ,  B05D3/0254 ,  B65H35/06 ,  B65H37/00 ,  C01B33/14 ,  C01B33/145 ,  C01B33/152 ,  C01B33/155 ,  C01P2006/32

Abstract: The present invention relates to a method for manufacturing an aerogel sheet and comprises: a step (a) of preparing silica sol and a surface modifying agent to prepare a silica precursor; a step (b) of preparing a gelling catalyst; a step (c) of injecting the silica precursor prepared in the step (a) to a surface of a blanket to impregnate the silica precursor; and a step (d) of injecting the gelling catalyst prepared in the step (b) to the surface of the blanket in which the silica precursor is impregnated to gelate the silica precursor.

公开(公告)号：US20180044188A1

公开(公告)日：2018-02-15

申请号：US15552443

申请日：2016-04-21

Applicant: Wacker Chemie AG

Inventor： Konrad HINDELANG ,  Dominik JANTKE ,  Richard WEIDNER

IPC: C01B33/158 ,  C01B33/155 ,  C01B33/152

CPC classification number: C01B33/1585 ,  C01B33/152 ,  C01B33/155

Abstract: The invention relates to a method for producing organically modified aerogels. The problem addressed by the invention is that of providing an economical method for producing hydrophobic aerogels which can be implemented cost-effectively, simply, and safely, and which operates to save on resources. This problem is solved by the provision of a method for producing organically modified aerogels, wherein a sol containing [SiO4,2] units is produced, and the sol obtained is dispersed in a continuous phase. The sol forms a separate phase and the continuous phase contains at least 20 wt % organosiloxane, a gel is formed from the sol in the continuous phase, and the gel obtained is surface-modified in the presence of a phase mediator in the continuous phase, wherein acids or chlorosilanes or mixtures thereof are added as initiator and the gels obtained are dried. The aerogels provided can be used as insulating materials, in particular in thermal insulation.

公开(公告)号：US4576921A

公开(公告)日：1986-03-18

申请号：US522695

申请日：1983-08-12

Applicant: Edward S. Lane

Inventor： Edward S. Lane

IPC: B01F17/18 ,  B01J13/00 ,  C01B33/152 ,  C01G19/02 ,  C03C1/00 ,  C03C3/00 ,  C01B13/14 ,  C03C3/04

CPC classification number: C01G19/02 ,  B01J13/0034 ,  B01J13/0047 ,  C01B33/152 ,  C03C1/008

Abstract: The present invention relates to the preparation of materials and finds application in the preparation of dispersions and gels.The invention provides, in one aspect, a process for the preparation of a dispersion which comprises treating a chemical compound with a quaternary ammonium hydroxide so as to peptize the chemical compound to form a dispersion.The dispersion may be, for example, a suspension or a sol (i.e. a colloidal solution). The chemical compound may be, for example, a hydrous metal oxide (e.g. hydrous stannic oxide).Mixed dispersions may be formed in accordance with the present invention.

Abstract translation: 本发明涉及材料的制备和应用于分散体和凝胶的制备。 本发明一方面提供一种制备分散体的方法，该方法包括用氢氧化季铵处理化合物，以使该化合物胶溶以形成分散体。 分散体可以是例如悬浮液或溶胶（即胶体溶液）。 化合物可以是例如含水金属氧化物（例如，含水锡氧化物）。 可以根据本发明形成混合分散体。

公开(公告)号：US1539342A

公开(公告)日：1925-05-26

申请号：US67949923

申请日：1923-12-08

Applicant: NAT BENZOLE ASS

Inventor： WILLIAMS EVAN C

IPC: C01B33/152

CPC classification number: C01B33/152

公开(公告)号：US20230348285A1

公开(公告)日：2023-11-02

申请号：US17922203

申请日：2021-04-20

Applicant: EVONIK OPERATIONS GMBH

Inventor： Uwe NUMRICH ,  Stefan BADE ,  Nicolas MARION ,  Matthias KOEBEL ,  Wim MALFAIT ,  Stefanie HAUSER ,  Nicolas VOGEL

IPC: C01B33/158 ,  C01B33/159 ,  C01B33/152

CPC classification number: C01B33/1585 ,  C01B33/159 ,  C01B33/152

Abstract: The present invention relates to a process for producing a hydrophobized silica aerogel, comprising the following steps: a) preparing a hydrophobized silica gel comprising alkoxy groups; b) drying of the hydrophobized silica gel obtained in step a); c) treatment of the product obtained in step b) with a gas mixture comprising water and a base or an acid. A hydrophobized silica aerogel with a reduced alkoxy group content, suitable for thermal insulation applications, is also provided.

公开(公告)号：US09969867B2

公开(公告)日：2018-05-15

申请号：US14785739

申请日：2014-05-14

Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.

Inventor： Naohiko Suemura ,  Megumi Shimada ,  Ichitaro Kikunaga

IPC: C08G59/18 ,  C08L63/00 ,  C08K3/36 ,  C08K9/06 ,  C01B33/14 ,  C01B33/141 ,  C01B33/142 ,  C01B33/143 ,  C01B33/146 ,  C01B33/149 ,  C01B33/12 ,  C01B33/148 ,  C01B33/152

CPC classification number: C08K9/06 ,  C01B33/128 ,  C01B33/142 ,  C01B33/146 ,  C01B33/148 ,  C01B33/152 ,  C08K3/36 ,  C08L63/00

Abstract: The silica sol of the invention contains silica particles having a mean primary particle size of 20 to 100 nm and which has a silica particle size/mean primary particle size ratio, determined through dynamic light scattering, of 3.0 or less, wherein the silica particles are surface-treated with an organic silane compound and have an α-ray emission rate of 0.005 counts/cm2·hr or less and a moisture absorption coefficient, determined after allowing the silica particles to stand for 48 hours at 23° C. and a relative humidity of 50 RH %, of 0.5 mass % or lower.

公开(公告)号：US20090074655A1

公开(公告)日：2009-03-19

申请号：US12085974

申请日：2006-12-01

Applicant: Crina Silvia Suciu

Inventor： Crina Silvia Suciu

IPC: C01G25/02 ,  C01B33/141 ,  B01J13/00

CPC classification number: C01B13/32 ,  B82Y30/00 ,  C01B33/152 ,  C01G1/02 ,  C01G17/02 ,  C01G25/02 ,  C01G27/02 ,  C01G35/00 ,  C01G53/04 ,  C01P2002/60 ,  C01P2002/72 ,  C01P2002/88 ,  C01P2004/04 ,  C01P2004/64 ,  C01P2006/12

Abstract: Methods of sol-gel processing for preparing of gels and nanoparticles are described. The invention also relates to gels and nanoparticles prepared by the described methods. A preferable embodiment describes ZrO2 nanoparticles produced by sol gel processing by using sucrose and pectin as polymerization agents.

Abstract translation: 描述了制备凝胶和纳米颗粒的溶胶 - 凝胶加工方法。 本发明还涉及通过所述方法制备的凝胶和纳米颗粒。 优选的实施方案描述了通过使用蔗糖和果胶作为聚合剂通过溶胶凝胶加工制备的ZrO 2纳米颗粒。

公开(公告)号：US5158758A

公开(公告)日：1992-10-27

申请号：US342547

申请日：1989-04-24

Applicant: Paul C. Chieng ,  Deborah J. Brame ,  Alexander H. T. Chu

Inventor： Paul C. Chieng ,  Deborah J. Brame ,  Alexander H. T. Chu

IPC: B01J20/10 ,  B01J20/283 ,  B01J20/287 ,  C01B33/152

CPC classification number: B01J20/287 ,  B01J20/103 ,  B01J20/283 ,  C01B33/152

Abstract: A method for production of high specific surface area silica gel by hydrolysis of silicon tetrahalide, wherein a solution of silicon tetrahalide in a non-reactive solvent such as alcohol is mixed with water to produce silica gel having a high surface area and narrow pore diameter distribution especially suited for use as normal phase packing material in high performance chromatography columns. The water contains fluoride ions if the halide is chloride. Reverse phase packing material can be prepared by reacting the normal phase silica gel with organochlorosilanes to prepare bonded reverse phase material for use in high performance liquid chromotagraphy systems.

Abstract translation: 一种通过水解四卤化硅生产高比表面积硅胶的方法，其中将四卤化硅在无反应性溶剂如醇中的溶液与水混合，生产具有高表面积和窄孔径分布的硅胶 特别适用于高性能色谱柱中的正相填充材料。 如果卤化物是氯化物，水就含有氟离子。 反相包装材料可以通过正相硅胶与有机氯硅烷反应制备用于高性能液体色谱系统的粘结反相材料。