GR1004889B - Process for the production of transparent silica aerosols - Google Patents

Process for the production of transparent silica aerosols

Info

Publication number
GR1004889B
GR1004889B GR20040100119A GR2004100119A GR1004889B GR 1004889 B GR1004889 B GR 1004889B GR 20040100119 A GR20040100119 A GR 20040100119A GR 2004100119 A GR2004100119 A GR 2004100119A GR 1004889 B GR1004889 B GR 1004889B
Authority
GR
Greece
Prior art keywords
production
gel
silica
aerosols
transparent silica
Prior art date
Application number
GR20040100119A
Other languages
Greek (el)
Inventor
Θεοφιλος Ιωαννιδης
Δημητριος Δελημαρης
Αικατερινη Κατερινοπουλου
Σοφια Μακρυγιαννη
Αριστειδης Μαρμασιουλας
Μαρια Μιχαλοπουλου
Original Assignee
Ιδρυμα Τεχνολογιας Και Ερευνας, Ερευνητικο Ινστιτουτο Χημικης Μηχανικης Και Χημικων Διεργασιων Υψηλης Θερμοκρασιας
Frigoglass Α.Β.Ε.Ε.
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 Ιδρυμα Τεχνολογιας Και Ερευνας, Ερευνητικο Ινστιτουτο Χημικης Μηχανικης Και Χημικων Διεργασιων Υψηλης Θερμοκρασιας, Frigoglass Α.Β.Ε.Ε. filed Critical Ιδρυμα Τεχνολογιας Και Ερευνας, Ερευνητικο Ινστιτουτο Χημικης Μηχανικης Και Χημικων Διεργασιων Υψηλης Θερμοκρασιας
Priority to GR20040100119A priority Critical patent/GR1004889B/en
Publication of GR1004889B publication Critical patent/GR1004889B/en

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Abstract

process for the production of silica aerosols in monolithic form, which are transparent and with very good thermal insulation properties and can be used as insulation material between windoww panes. The process consists of mixing of a silica precccursor in an organic solvent with addition of water and an organic ammonium fluoride salt, N(R)4F, as catalyst. The resultinng colloidal solution is put in molds, either covered with a polymer film, or constructed of a porous material, allowing for facile removal of the gel from the mold. Solvent removal from the gel may be performed with existing techniques for production of the aerosol.
GR20040100119A 2004-04-02 2004-04-02 Process for the production of transparent silica aerosols GR1004889B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GR20040100119A GR1004889B (en) 2004-04-02 2004-04-02 Process for the production of transparent silica aerosols

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GR20040100119A GR1004889B (en) 2004-04-02 2004-04-02 Process for the production of transparent silica aerosols

Publications (1)

Publication Number Publication Date
GR1004889B true GR1004889B (en) 2005-05-23

Family

ID=34685522

Family Applications (1)

Application Number Title Priority Date Filing Date
GR20040100119A GR1004889B (en) 2004-04-02 2004-04-02 Process for the production of transparent silica aerosols

Country Status (1)

Country Link
GR (1) GR1004889B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2388657A1 (en) * 1977-04-25 1978-11-24 Ici Ltd RELEASE SHEETS
NL8103190A (en) * 1981-07-02 1983-02-01 Leuven Res & Dev Vzw Polymerisation of cyclic siloxane(s) - using a quat. ammonium fluoride cpd. as catalyst
US5478546A (en) * 1993-03-12 1995-12-26 Shin-Etsu Chemical Co., Ltd. Process for preparing powder of silicon compound
US5972254A (en) * 1996-12-06 1999-10-26 Sander; Matthew T. Ultra-thin prestressed fiber reinforced aerogel honeycomb catalyst monoliths
US20030203063A1 (en) * 2002-04-30 2003-10-30 Kazuaki Ano Air release molding system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2388657A1 (en) * 1977-04-25 1978-11-24 Ici Ltd RELEASE SHEETS
NL8103190A (en) * 1981-07-02 1983-02-01 Leuven Res & Dev Vzw Polymerisation of cyclic siloxane(s) - using a quat. ammonium fluoride cpd. as catalyst
US5478546A (en) * 1993-03-12 1995-12-26 Shin-Etsu Chemical Co., Ltd. Process for preparing powder of silicon compound
US5972254A (en) * 1996-12-06 1999-10-26 Sander; Matthew T. Ultra-thin prestressed fiber reinforced aerogel honeycomb catalyst monoliths
US20030203063A1 (en) * 2002-04-30 2003-10-30 Kazuaki Ano Air release molding system

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
CERVEAU, GENEVIEVE ET AL: "Hybrid materials and silica : drastic control of surfaces and porosity of xerogels via ageing temperature, and influence of drying step on polycondensation at silicon", JOURNAL OF MATERIALS CHEMISTRY , 12(10), 3021-3026 CODEN: JMACEP; ISSN: 0959-9428, 2002, XP002313493 *
FRAMERY E ET AL: "Si MAS-NMR study of silica gels and xerogels: influence of the catalyst", JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY KLUWER ACADEMIC PUBLISHERS NETHERLANDS, vol. 24, no. 3, 2002, pages 191 - 195, XP002313492, ISSN: 0928-0707 *
HE L ET AL: "Mesoporous TMOS-MTMS copolymer silica gels catalyzed by fluoride", JOURNAL OF NON-CRYSTALLINE SOLIDS, NORTH-HOLLAND PHYSICS PUBLISHING. AMSTERDAM, NL, vol. 289, no. 1-3, August 2001 (2001-08-01), pages 97 - 105, XP004300693, ISSN: 0022-3093 *

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