DE69424995D1 - Herstellung von sehr porösen xerogelen durch chemische abänderung der oberfläche - Google Patents

Herstellung von sehr porösen xerogelen durch chemische abänderung der oberfläche

Info

Publication number
DE69424995D1
DE69424995D1 DE69424995T DE69424995T DE69424995D1 DE 69424995 D1 DE69424995 D1 DE 69424995D1 DE 69424995 T DE69424995 T DE 69424995T DE 69424995 T DE69424995 T DE 69424995T DE 69424995 D1 DE69424995 D1 DE 69424995D1
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DE
Germany
Prior art keywords
pressures
production
vacuum
gel
dried
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69424995T
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English (en)
Other versions
DE69424995T2 (de
Inventor
Ravindra Deshpande
M Smith
C Jeffrey Brinker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University of New Mexico UNM
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University of New Mexico UNM
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by University of New Mexico UNM filed Critical University of New Mexico UNM
Publication of DE69424995D1 publication Critical patent/DE69424995D1/de
Application granted granted Critical
Publication of DE69424995T2 publication Critical patent/DE69424995T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/0091—Preparation of aerogels, e.g. xerogels
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/113—Silicon oxides; Hydrates thereof
    • C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • C01B33/16—Preparation of silica xerogels
    • C01B33/163—Preparation of silica xerogels by hydrolysis of organosilicon compounds, e.g. ethyl orthosilicate
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y10T428/2993—Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]
    • Y10T428/2995—Silane, siloxane or silicone coating
DE69424995T 1993-04-28 1994-04-28 Herstellung von sehr porösen xerogelen durch chemische abänderung der oberfläche Expired - Fee Related DE69424995T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/055,069 US5565142A (en) 1992-04-01 1993-04-28 Preparation of high porosity xerogels by chemical surface modification.
PCT/US1994/005105 WO1994025149A1 (en) 1993-04-28 1994-04-28 Preparation of high porosity xerogels by chemical surface modification

Publications (2)

Publication Number Publication Date
DE69424995D1 true DE69424995D1 (de) 2000-07-27
DE69424995T2 DE69424995T2 (de) 2001-05-23

Family

ID=21995376

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69424995T Expired - Fee Related DE69424995T2 (de) 1993-04-28 1994-04-28 Herstellung von sehr porösen xerogelen durch chemische abänderung der oberfläche

Country Status (10)

Country Link
US (1) US5565142A (de)
EP (1) EP0707518B1 (de)
JP (1) JP2840881B2 (de)
KR (1) KR0158053B1 (de)
AT (1) ATE193980T1 (de)
BR (1) BR9406431A (de)
CA (1) CA2160993A1 (de)
DE (1) DE69424995T2 (de)
NO (1) NO954274L (de)
WO (1) WO1994025149A1 (de)

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EP0707518B1 (de) 2000-06-21
JPH08504674A (ja) 1996-05-21
KR0158053B1 (ko) 1998-11-16
DE69424995T2 (de) 2001-05-23
BR9406431A (pt) 1996-01-09
NO954274L (no) 1995-12-22
ATE193980T1 (de) 2000-07-15
US5565142A (en) 1996-10-15
CA2160993A1 (en) 1994-11-10
EP0707518A1 (de) 1996-04-24
KR960701693A (ko) 1996-03-28
JP2840881B2 (ja) 1998-12-24
EP0707518A4 (de) 1997-01-22

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