BR9807710A - Géis de sìlica modificados por organossilicato hidrófobo envelhecidos de forma neutra - Google Patents

Géis de sìlica modificados por organossilicato hidrófobo envelhecidos de forma neutra

Info

Publication number
BR9807710A
BR9807710A BR9807710-4A BR9807710A BR9807710A BR 9807710 A BR9807710 A BR 9807710A BR 9807710 A BR9807710 A BR 9807710A BR 9807710 A BR9807710 A BR 9807710A
Authority
BR
Brazil
Prior art keywords
organosilicate
hydrophobic
modified silica
silica hydrogel
aged
Prior art date
Application number
BR9807710-4A
Other languages
English (en)
Inventor
Gary T Burns
Qin Deng
James R Harn
Clifford C Reese
Original Assignee
Dow Corning
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 Dow Corning filed Critical Dow Corning
Publication of BR9807710A publication Critical patent/BR9807710A/pt

Links

Classifications

    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/28—Compounds of silicon
    • C09C1/30—Silicic acid
    • C09C1/3081—Treatment with organo-silicon compounds
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/14—Pore volume
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/16—Pore diameter
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/22—Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/90—Other properties not specified above
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Silicon Compounds (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Silicon Polymers (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)

Abstract

Patente de Invenção: <B>"GéIS DE SìLICA MODIFICADOS POR ORGANOSSILICATO HIDRóFOBO ENVELHECIDOS DE FORMA NEUTRA"<D>. A presente invenção apresenta géis de sílica modificados por organossilicato hidrófobo envelhecidos de forma neutra e a um processo para sua preparação. O processo compreende três etapas, onde na primeira etapa, um hidrossol modificado por organossilicato é contatado com um ácido mineral forte em um pH inferior a 1 para formar um hidrogel de sílica modificado por organossilicato. Na segunda etapa, o hidrogel de sílica modificado por organossilicato é envelhecido a um pH dentro da faixa de pH 3,5 a pH 8. Na terceira etapa, o hidrogel de sílica modificado por organossilicato é contatado com um composto organossílico, em presença de uma quantidade catalítica de um ácido forte para efetuar a forma hidrófoba do hidrogel de sílica modificado por organossilicato, de modo a formar um hidrogel de sílica modificado por organossilicato hidrófobo possuindo uma área de superfície na faixa de 100 m²/g a 750 m²/g no estado seco. Em um processo preferido, o hidrogel de sílica modificado por organossilicato hidrófobo é contatado com uma quantidade suficiente de um solvente orgânico imiscível em água para converter o hidrogel de sílica modificado por organossilicato hidrófobo em um organogel de sílica modificado por organossilicato hidrófobo.
BR9807710-4A 1997-02-20 1998-02-18 Géis de sìlica modificados por organossilicato hidrófobo envelhecidos de forma neutra BR9807710A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/801,410 US5807501A (en) 1997-02-20 1997-02-20 Neutral-aged hydrophobic organosilicate-modified silica gels
PCT/US1998/003155 WO1998037017A1 (en) 1997-02-20 1998-02-18 Neutral-aged hydrophobic organosilicate-modified silica gels

Publications (1)

Publication Number Publication Date
BR9807710A true BR9807710A (pt) 2000-05-02

Family

ID=25181021

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9807710-4A BR9807710A (pt) 1997-02-20 1998-02-18 Géis de sìlica modificados por organossilicato hidrófobo envelhecidos de forma neutra

Country Status (13)

Country Link
US (1) US5807501A (pt)
EP (1) EP0963347B1 (pt)
JP (1) JP4021942B2 (pt)
KR (1) KR100517446B1 (pt)
CN (1) CN1248222A (pt)
AU (1) AU6436198A (pt)
BR (1) BR9807710A (pt)
CA (1) CA2278029C (pt)
DE (1) DE69804774T2 (pt)
ES (1) ES2172118T3 (pt)
MY (1) MY133892A (pt)
TW (1) TW473457B (pt)
WO (1) WO1998037017A1 (pt)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0963342B1 (en) * 1997-02-24 2003-04-09 Dow Corning Corporation Neutral-aged hydrophobic silica gels with reduced surface area
US6239243B1 (en) 1999-06-10 2001-05-29 Dow Corning Corporation Method for preparing hydrophilic silica gels with high pore volume
US6620508B2 (en) * 2000-01-25 2003-09-16 Nippon Aerosil Co., Ltd. Oxide powder and method for preparing the same, and product using the same
DE10150274A1 (de) * 2001-10-12 2003-04-30 Wacker Chemie Gmbh Kieselsäure mit homogener Silyliermittelschicht
DE102004029069A1 (de) * 2004-06-16 2005-12-29 Degussa Ag Oberflächenmodifizierte Silicagele
US8106229B2 (en) * 2006-05-30 2012-01-31 Nalco Company Organically modifid silica and use thereof
CN102381714B (zh) * 2011-08-30 2013-06-12 中国石油化工股份有限公司 一种用于油气回收的疏水性硅胶的制备方法
CN106660811B (zh) 2014-11-11 2019-05-21 松下知识产权经营株式会社 气凝胶及其制造方法
DE102015207939A1 (de) 2015-04-29 2016-11-03 Wacker Chemie Ag Verfahren zur Herstellung organisch modifizierter Aerogele
DE102015211812A1 (de) * 2015-06-25 2016-12-29 Wacker Chemie Ag Wirtschaftliches Verfahren zur Herstellung von organisch modifizierten Lyo- oder Aerogelen
CN106745000A (zh) * 2016-12-23 2017-05-31 伊科纳诺（北京）科技发展有限公司 一种水玻璃基二氧化硅气凝胶的制备方法
CN110746827B (zh) * 2019-10-08 2021-09-17 苏州扬子江新型材料股份有限公司 防虫生化彩钢板
CN114906854B (zh) * 2022-05-10 2023-09-22 纳诺科技有限公司 一种中性气凝胶粉体及其制备方法

Family Cites Families (20)

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US3015645A (en) * 1954-10-06 1962-01-02 Dow Corning Silica powders
GB783868A (en) * 1954-10-06 1957-10-02 Midland Silicones Ltd A process of preparing hydrophobic organo-silicon powders
US2802850A (en) * 1954-11-01 1957-08-13 Gen Electric Hydrophobic silicas
US2892797A (en) * 1956-02-17 1959-06-30 Du Pont Process for modifying the properties of a silica sol and product thereof
US3122520A (en) * 1959-10-05 1964-02-25 Dow Corning Method of making silicone rubber fillers
US3024126A (en) * 1960-06-15 1962-03-06 Dow Corning Method of treating reinforcing silica
NL7000442A (pt) * 1969-01-27 1970-07-29
SU369131A1 (pt) * 1969-11-12 1973-02-08
DE1963439A1 (de) * 1969-12-18 1971-06-24 Dynamit Nobel Ag Verfahren zur Herstellung poroeser Kieselsaeure
US4006175A (en) * 1969-12-18 1977-02-01 Dynamit Nobel Aktiengesellschaft Porous silicic acid and its production
DE2015402A1 (de) * 1970-04-01 1971-10-21 Bayer Verfahren zur Verbesserung des Vulkani sationsverhaltens und zur Hitzestabili sierung von Polyorganosiloxanelastomeren
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DE3005137A1 (de) * 1980-02-12 1981-08-20 Degussa Ag, 6000 Frankfurt Cerhaltige faellungskieselsaeure, verfahren zu deren herstellung, sowie zu elastomeren haertbare massen, die die cerhaltige faellungskieselsaeure enthalten
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JPH02170858A (ja) * 1988-12-23 1990-07-02 Canon Inc 付加反応型シリコーンゴム組成物、該組成物を有する弾性回転体及び定着装置
DE4342548A1 (de) * 1993-12-14 1995-06-22 Hoechst Ag Xerogele, Verfahren zu ihrer Herstellung, sowie ihre Verwendung
DE4422912A1 (de) * 1994-06-30 1996-01-11 Hoechst Ag Xerogele, Verfahren zu ihrer Herstellung, sowie ihre Verwendung
DE4439217A1 (de) * 1994-11-03 1996-05-09 Hoechst Ag Verfahren zur Herstellung von Aerogelen
DE19502453C1 (de) * 1995-01-27 1996-09-05 Hoechst Ag Verfahren zur Herstellung von modifizierten Si0¶2¶- Aerogelen und deren Verwendung

Also Published As

Publication number Publication date
US5807501A (en) 1998-09-15
DE69804774T2 (de) 2002-11-14
KR20000071209A (ko) 2000-11-25
JP4021942B2 (ja) 2007-12-12
CA2278029A1 (en) 1998-08-27
KR100517446B1 (ko) 2005-09-29
DE69804774D1 (de) 2002-05-16
CN1248222A (zh) 2000-03-22
JP2001513065A (ja) 2001-08-28
WO1998037017A1 (en) 1998-08-27
CA2278029C (en) 2007-06-12
TW473457B (en) 2002-01-21
EP0963347A1 (en) 1999-12-15
MY133892A (en) 2007-11-30
ES2172118T3 (es) 2002-09-16
AU6436198A (en) 1998-09-09
EP0963347B1 (en) 2002-04-10

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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]