BRPI0408536A - artigos baseados em óxido de silìcio - Google Patents

artigos baseados em óxido de silìcio

Info

Publication number
BRPI0408536A
BRPI0408536A BRPI0408536-1A BRPI0408536A BRPI0408536A BR PI0408536 A BRPI0408536 A BR PI0408536A BR PI0408536 A BRPI0408536 A BR PI0408536A BR PI0408536 A BRPI0408536 A BR PI0408536A
Authority
BR
Brazil
Prior art keywords
silicon oxide
sun
articles
silicon
oxide based
Prior art date
Application number
BRPI0408536-1A
Other languages
English (en)
Inventor
Giulio Boara
Simone Pedretti
Andreas Rueckemann
Massimo Sparpaglione
Original Assignee
Gegussa Novara Technology Spa
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 Gegussa Novara Technology Spa filed Critical Gegussa Novara Technology Spa
Publication of BRPI0408536A publication Critical patent/BRPI0408536A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/14—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silica
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B19/00—Other methods of shaping glass
    • C03B19/12—Other methods of shaping glass by liquid-phase reaction processes
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/624—Sol-gel processing
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62645—Thermal treatment of powders or mixtures thereof other than sintering
    • C04B35/6268—Thermal treatment of powders or mixtures thereof other than sintering characterised by the applied pressure or type of atmosphere, e.g. in vacuum, hydrogen or a specific oxygen pressure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
    • C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
    • C08J3/075—Macromolecular gels
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3287—Germanium oxides, germanates or oxide forming salts thereof, e.g. copper germanate
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C04B2235/441—Alkoxides, e.g. methoxide, tert-butoxide
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C04B2235/444—Halide containing anions, e.g. bromide, iodate, chlorite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/602—Making the green bodies or pre-forms by moulding
    • C04B2235/6023—Gel casting
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/606—Drying
    • 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
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57—Improving the yield, e-g- reduction of reject rates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Glass Compositions (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Glass Melting And Manufacturing (AREA)
  • Inorganic Fibers (AREA)
  • Silicon Compounds (AREA)

Abstract

"ARTIGOS BASEADOS EM óXIDO DE SILìCIO". A presente invenção refere-se a artigos particularmente moldados constituídos por óxido de silício, como tal ou adequadamente aditivado, preparados por moldagem à temperatura ambiente de acordo com um processo consistindo na: preparação de um sol partindo de um alcóxido de silício ou de um alcóxido de silício e pelo menos um precursor de pelo menos um dos elementos adicionais; - hidrólise do sol obtido desse modo; - adição de sílica coloidal; - derramamento da mistura resultante no molde desejado; - gelificação do sol e rápida remoção do produto sólido; - secagem do gel; - densificação do gel por meio de um tratamento térmico em temperaturas situando-se na faixa de 900<198>C a 1500<198>C. Os artigos podem ser usados como preformas para a fiação de fibra ótica.
BRPI0408536-1A 2003-03-21 2004-03-12 artigos baseados em óxido de silìcio BRPI0408536A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000006A ITNO20030006A1 (it) 2003-03-21 2003-03-21 Articoli a base di ossido di silicio.
PCT/EP2004/002578 WO2004083138A1 (en) 2003-03-21 2004-03-12 Silicon oxide based articles

Publications (1)

Publication Number Publication Date
BRPI0408536A true BRPI0408536A (pt) 2006-03-07

Family

ID=29560763

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0408536-1A BRPI0408536A (pt) 2003-03-21 2004-03-12 artigos baseados em óxido de silìcio

Country Status (11)

Country Link
US (1) US20060218970A1 (pt)
EP (1) EP1606222A1 (pt)
JP (1) JP2006520310A (pt)
KR (2) KR20050121206A (pt)
CN (1) CN1761627A (pt)
AU (1) AU2004222148A1 (pt)
BR (1) BRPI0408536A (pt)
CA (1) CA2519667A1 (pt)
IT (1) ITNO20030006A1 (pt)
RU (1) RU2005132391A (pt)
WO (1) WO2004083138A1 (pt)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2088128B1 (en) 2007-12-10 2015-04-08 Cristal Materials Corporation Method for the production of glassy monoliths via the sol-gel process
DE102011006406A1 (de) 2011-03-30 2012-10-04 Evonik Degussa Gmbh Verfahren zur Herstellung von SiO2-Formkörpern
EP2678293A1 (de) 2011-02-25 2014-01-01 Evonik Degussa GmbH VERFAHREN ZUR HERSTELLUNG VON SiO2-FORMKÖRPERN
EP3124443A1 (de) 2015-07-28 2017-02-01 D. Swarovski KG Kontinuierliches sol-gel verfahren zur herstellung von quarzglas
EP3281920A1 (de) 2016-08-12 2018-02-14 D. Swarovski KG Kontinuierliches sol-gel-verfahren zur herstellung von silicathaltigen gläsern oder glaskeramiken

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4681615A (en) * 1982-12-23 1987-07-21 Seiko Epson Kabushiki Kaisha Silica glass formation process
GB2165534B (en) * 1984-10-05 1988-10-19 Suwa Seikosha Kk Method of preparing parent material for optical fibres
JPS61163131A (ja) * 1985-01-07 1986-07-23 Seiko Epson Corp ガラス体の製造方法
JPS6360411A (ja) * 1986-09-01 1988-03-16 Hitachi Cable Ltd 偏波面保存光フアイバ
US4859223A (en) * 1987-06-15 1989-08-22 Hitachi Cable Limited Method of manufacturing polarization-maintaining optical fibers
US4883521A (en) * 1987-09-30 1989-11-28 Shin-Etsu Chemical Co., Ltd. Method for the preparation of silica glass
CN1018955B (zh) * 1988-10-23 1992-11-04 黄宏嘉 用无源光纤控制偏振态的方法及其器件
US5063179A (en) * 1990-03-02 1991-11-05 Cabot Corporation Process for making non-porous micron-sized high purity silica
US5068208A (en) * 1991-04-05 1991-11-26 The University Of Rochester Sol-gel method for making gradient index optical elements
US5360564A (en) * 1993-07-30 1994-11-01 Shell Oil Company Dispersant viscosity index improvers
ITNO990004A1 (it) * 1999-03-08 2000-09-08 Gel Design And Engineering S R Processo sol-gel per la produzione di manufatti contenenti e aderentiad un inserto cilindrico incomprimibile e manufatti cosi' ottenuti.
US6467312B1 (en) * 2000-07-11 2002-10-22 Fitel Usa Corp. Sol gel method of making an optical fiber with multiple apetures
JP2002293548A (ja) * 2001-04-02 2002-10-09 Furukawa Electric Co Ltd:The シリカガラスの製造方法

Also Published As

Publication number Publication date
AU2004222148A1 (en) 2004-09-30
ITNO20030006A0 (it) 2003-03-21
KR100878995B1 (ko) 2009-01-15
WO2004083138A1 (en) 2004-09-30
ITNO20030006A1 (it) 2004-09-22
KR20050121206A (ko) 2005-12-26
CN1761627A (zh) 2006-04-19
CA2519667A1 (en) 2004-09-30
RU2005132391A (ru) 2006-06-10
JP2006520310A (ja) 2006-09-07
US20060218970A1 (en) 2006-10-05
EP1606222A1 (en) 2005-12-21
KR20080038449A (ko) 2008-05-06

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE AS 7A E 8A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2159 DE 22/05/2012.