-
公开(公告)号：US11512002B2
公开(公告)日：2022-11-29
申请号：US16388725
申请日：2019-04-18
发明人： Jong Ho Sonn , Pamela M. Norris
IPC分类号： C01B33/155 , C01B33/16 , C01B33/158 , B01J31/02 , B01J27/02 , B01J27/24
摘要： Disclosed herein are methods for the preparation of porous metal oxide materials, including metal oxide xerogels and metal oxide aerogels. Methods for preparing porous metal oxide materials can comprise (i) reacting a metal alkoxide with water in the presence of a catalyst system to form a partially hydrolyzed sol, (ii) contacting the partially hydrolyzed sol with a base catalyst and a non-aqueous solvent to form a precursor gel; and (iii) drying the precursor gel to form the porous metal oxide material. The catalyst system employed in step (i) comprises a combination of a weak acid and a strong acid.
-
公开(公告)号：US20220090313A1
公开(公告)日：2022-03-24
申请号：US17413928
申请日：2019-10-10
摘要： A fiber sheet having first and second surfaces and spaces therein is prepared. The spaces of the fiber sheet are impregnated with silica sol containing water glass and ethylene carbonate. Silica gel is formed by causing the silica sol with which the spaces of the fiber sheet is impregnated to gel while a difference between respective temperatures at the first and surfaces of the fiber sheet is equal to or larger than 50° C. The silica gel is hydrophobized, thereby providing a thermal insulation sheet. In the thermal insulation sheet, compressibilities of the first and second surfaces for a predetermined pressure applied thereto are different from each other. The thermal insulation sheet may be disposed between two battery cells so as to prevent one sell from influencing the other even if the one expands.
-
公开(公告)号：US11161987B2
公开(公告)日：2021-11-02
申请号：US16060566
申请日：2016-12-09
发明人： Michael Detty , Damon Corey , Caitlyn Gatley
摘要： Xerogels and compositions comprising xerogels comprising a transition metal oxide and silicon oxide xerogel matrix. The xerogels and compositions can be made from mixtures of transition metal alkoxide(s) and tetraalkoxysilane(s) and, optionally, alkyltrialkoxysilane(s), aminoalkyl-, alkylaminoalkyl-, dialkylaminoalkyltrialkoxysilane(s), or a combination thereof. The xerogels and compositions can be used as antifouling coatings on, for example; boats.
-
公开(公告)号：US11097242B2
公开(公告)日：2021-08-24
申请号：US15822461
申请日：2017-11-27
发明人： Jean-Hong Chen , Shiu-Shiu Chen
摘要： A wet gel granule of aerogel is prepared by the following steps: mixing step: mixing with an organic mixed solvent to form a mixed solution; hydrolysis step: adding an acid catalyst to the mixed solution for carrying out a hydrolysis reaction, and adding a dispersion solvent during the condensation reaction, and agitating to gel the mixed solution during agitation and produce multiple hydrophilic or hydrophobic wet gel granules of aerogel. The overall preparation speed can be shortened quickly and at the same time the hydrophilic or hydrophobic wet gel granules of aerogel wet glue particles are prepared to increase the production efficiency of the wet gel granules of aerogel.
-
公开(公告)号：US10948120B2
公开(公告)日：2021-03-16
申请号：US16313175
申请日：2017-06-23
发明人： Takeshi Fujii , Kazushige Koyama , Yuuichi Abe , Rikako Shono
IPC分类号： B32B3/30 , B32B5/24 , B32B7/04 , F16L59/02 , F16L59/06 , D04H1/413 , C01B33/16 , B32B7/05 , B32B7/027 , B32B5/26 , B32B27/08 , B32B27/36 , D04H1/4218
摘要： An object is to provide a heat insulating sheet that is easily attachable even if a size is increased, and to provide a method for manufacturing the same. A heat insulating sheet includes nonwoven fabric, and heat insulating body carrying xerogel in a space inside nonwoven fabric. Heat insulating body includes first region carrying the xerogel, and second region not carrying the xerogel and provided inside an outer periphery of heat insulating body. The heat insulating sheet is configured such that each of both surfaces of heat insulating body is provided with protective sheet, and in a periphery of heat insulating body and in second region, protective sheets are mutually joined or protective sheets and second region are joined.
-
公开(公告)号：US20210018135A1
公开(公告)日：2021-01-21
申请号：US16955889
申请日：2019-03-11
发明人： CHIHIRO SATOU , RYOSUKE USUI
摘要： An object of the present invention is to provide a thermal insulator which is easily position-adjusted when disposed in equipment. A plurality of projections are provided on at least one surface of thermal insulator including nonwoven fabric and xerogel in interior spaces of nonwoven fabric. With this configuration, fine positioning or the like is easily performed when thermal insulator is disposed, and a thickness increases by a height of projections, so that a thermal insulation effect can be improved. Thus, the thermal insulator can be used for thermal insulation of various types of equipment.
-
7.发明申请公开(公告)号：US20200122430A1
公开(公告)日：2020-04-23
申请号：US16719972
申请日：2019-12-18
发明人： KAZUMA OIKAWA , KEI TOYOTA , SHINJI OKADA , SHIGEAKI SAKATANI
摘要： A heat-insulation sheet includes a first silica xerogel layer, a second silica xerogel layer, and a composite layer. The first silica xerogel layer includes a first silica xerogel, and the second silica xerogel layer includes a second silica xerogel. The composite layer is located between the first silica xerogel layer and the second silica xerogel layer, and includes at least one type of unwoven fabric fibers, and a third silica xerogel. The third silica xerogel is located in a spatial volume of the unwoven fabric fibers.
-
公开(公告)号：US10604412B2
公开(公告)日：2020-03-31
申请号：US15768995
申请日：2017-09-06
申请人： LG CHEM, LTD.
发明人： Young Hun Kim , Je Kyun Lee
IPC分类号： C01B33/158 , C01B33/16 , C01B33/157 , B01J13/00 , C01B33/154 , C01B33/32
摘要： The present invention relates to a method for producing a silica aerogel and a silica aerogel produced thereby. More specifically, a first water glass solution is used to form a first silica wet gel, and then a second water glass solution is additionally added to form a second silica wet gel organically bonded to the first silica wet gel which serves as a basic skeleton, so that a silica aerogel with enhanced physical properties is formed to increase the resistance to shrinkage in ambient drying. Thus, a low-density silica aerogel may be formed, and the concentrations of the first and second water glass solutions may be adjusted to control the physical properties of the silica aerogel.
-
公开(公告)号：US20190145571A1
公开(公告)日：2019-05-16
申请号：US16228742
申请日：2018-12-20
发明人： Kazuma OIKAWA , Kei Toyota , Shinji Okada , Shigeaki Sakatani
摘要： An insulating material is used that contains a silica xerogel, and a nonwoven fabric fiber capable of generating carbon dioxide by reacting with atmospheric oxygen at a temperature of 300° C. or more. The insulating material uses oxidized acrylic as the nonwoven fabric fiber. A device uses the insulating material installed as a part of a heat insulating or a cold insulating structure, or installed between a heat-generating part and a casing.
-
公开(公告)号：US10266415B2
公开(公告)日：2019-04-23
申请号：US15129054
申请日：2015-01-13
发明人： Kazuma Kugimiya , Takumasa Yamada , Hideyuki Ando
IPC分类号： C01B33/158 , C01B33/16 , C01B33/155
摘要： A method for producing silica aerogel according to the present invention includes: a solation step of generating a sol by adding monoalkyltrialkoxysilane to an acidic aqueous solution containing silicic acid; and a gelation step of generating a wet gel by gelating the sol. Moreover, the production method includes a drying step of removing a solvent, which is contained in the wet gel, from the wet gel by drying the wet gel at less than a critical temperature of the solvent and at less than a critical pressure of the solvent. Then, the monoalkyltrialkoxysilane is added to the acidic aqueous solution so that an amount of silicon in the monoalkyltrialkoxysilane becomes 1 mol part or more with respect to 1 mol part of an amount of silicon in the acidic aqueous solution containing the silicic acid.
-
-
-
-
-
-
-
-
-
搜索结果
290 条记录 (耗时 0.019 秒)
