WO2009129760A1 - A particle surface • coated with photocatalytic oxides or metal salts and a coating and/or building material comprising the same - Google Patents

A particle surface • coated with photocatalytic oxides or metal salts and a coating and/or building material comprising the same Download PDF

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Publication number
WO2009129760A1
WO2009129760A1 PCT/CZ2009/000058 CZ2009000058W WO2009129760A1 WO 2009129760 A1 WO2009129760 A1 WO 2009129760A1 CZ 2009000058 W CZ2009000058 W CZ 2009000058W WO 2009129760 A1 WO2009129760 A1 WO 2009129760A1
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WIPO (PCT)
Prior art keywords
coating
oxides
particles
building material
component
Prior art date
Application number
PCT/CZ2009/000058
Other languages
French (fr)
Inventor
Petr Ratajsky
Original Assignee
Rokospol A.S.
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 Rokospol A.S. filed Critical Rokospol A.S.
Publication of WO2009129760A1 publication Critical patent/WO2009129760A1/en

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Classifications

    • 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
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/10—Coating or impregnating
    • C04B20/1055—Coating or impregnating with inorganic materials
    • C04B20/107—Acids or salts thereof
    • 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
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/10—Coating or impregnating
    • C04B20/1055—Coating or impregnating with inorganic materials
    • C04B20/1066—Oxides, Hydroxides
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
    • C09D1/02—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/16—Antifouling paints; Underwater paints
    • C09D5/1606—Antifouling paints; Underwater paints characterised by the anti-fouling agent
    • C09D5/1612—Non-macromolecular compounds
    • C09D5/1618—Non-macromolecular compounds inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
    • B01J35/39—
    • 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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/0215—Coating
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00482—Coating or impregnation materials
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0081—Uses not provided for elsewhere in C04B2111/00 as catalysts or catalyst carriers
    • C04B2111/00827—Photocatalysts
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
    • C08K3/013—Fillers, pigments or reinforcing additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00—Use of pretreated ingredients
    • C08K9/02—Ingredients treated with inorganic substances
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Catalysts (AREA)
  • Paints Or Removers (AREA)

Abstract

A particle for a coating composition or a building material catalytically photodegrading environmental pollutants, wherein the particle is at least partically surface coated with oxides or metal salts in nano crystalline form. Coating compositions and building materials comprising theses particles.

Description

A PARTICLE SURFACE ■ COATED WITH PHOTOCATALYTIC OXIDES OR METAL SALTS AND A COATING AND/OR BUILDING MATERIAL COMPRISING THE SAME
Field of the invention
The invention relates to a component of coating and/or building material active from the aspect of catalysis of the photodegradation of pollutants in the air. The invention also relates to the coating and/or building material containing this component.
State of the art
At present, a number of agents is already known used as building and coating materials (particularly for outdoor buildings and structures) featuring effects of photodegradation on air pollutants.
As regards building materials, e.g. cement compositions are known that contain photocatalytically active titanium dioxide as an admixture .
As regards the recipes of coating compounds for surface treatment of outdoor buildings and structures, the application of organo-metallic precursors containing particles of photocatalytically-active compounds proves useful — in particular the titanium dioxide. In this area, for example the application of precursors produced by homogenous hydrolysis of soluble salts (chlorides) of titanium by urea or thiacetamide in aqueous medium is known. However, the obtained precursors may only be used as an active component of the respective coating compound - and not directly as a coating material itself. It is therefore more promising to use transparent layers on the base of polyvinyl alcohol or hydroxyethyl acrylate - the precursors produced by the hydrolysis of soluble titanium salts in the presence of the respective polymers. Nevertheless, even these precursors are not able to ensure by themselves the necessary mechanical and chemical resistance of an outdoor coating. Besides, conventional technologies of surface treatment and construction work are known. They are based on the use of mineral coats, jointing compounds, heat-retardant and facing coatings and other massive and thin-layer coatings and structures made of geopolymers. The benefit of these materials - in contrast to the above quoted construction and coating compounds with the effects of photodegradation on the air pollutants - is primarily the fire resistance and the resistance to an aggressive medium. At present, the known surface treatments on the base of geopolymers are exclusively based on the passive protection of building surfaces. In this respect no solution has been hitherto known that would have an active positive influence on the reduction of pollutants - air contaminants, especially the emission gasses and volatile matters originating from human activities (as solvents), flame retardants, etc., and/or self-cleaning effect.
Summary of the invention
A component of the coating and/or building material active from the aspect of photodegradation of pollutants in the air contributes to a considerable extent to the elimination of the above shortcomings of the hitherto state of art. The gist of the invention consist in the fact that at least a part of the total amount of particles of this component is provided on its surface or at least on a part of it with a coat of substance from the group consisting of oxides and metal salts in nanocrystalline form with photocatalytic activity in the visible part of solar spectrum.
The particles provided on their surface with a coat of substance from the group consisting of oxides and metal salts with photocatalytic activity may be the particles of the filler (of spathic, fibrous or spherical structure) and/or particles of the pigment.
A compound with photocatalytic activity from the group containing oxides and metal salts may be preferably titanium dioxide doped with oxides of transient metals, in particular Fe, Co, Ni, Mn, Cr, V, Ta, Nb, W and/or lathanoid oxides, particularly La, Ce, Nd, Y, Sm, Eu, Dy, which has the form of mostly spherical particles with lattice perturbances induced by dopants and it is photoactive by visible light.
Another variant of the compounds with photocatalytic activity from the group containing oxides and metal salts are mixed oxides of the type of TiOxMeO on the base of titanium oxide doped with oxides of transient metals (MeO), in which the Me metal is particularly Fe, Co, Ni, Mn, Cr, V, Ta, Nb, W and/or the lathanoid oxides, in particular La, Ce, Nd, Y, Sin, Eu, Dy.
The photoactive substance from the group of oxides and metal salts may also be the resulting product of homogeneous analysis Of TiCl3 or TiCl4 by urea in aqueous medium or also titanium dioxide in the form of transparent particles, which is the product of hydrolysis of T1CI3 or TiCl4 in the medium of polar polymers, as hydroxyethyl metaacrylate or inorganic polymers on the base of silicates, esters of silicic acid, siloxanes or silicon alkyloxides
The particles of the filler may be preferably, but not necessarily, the particles active from the aspect of setting of the substance - primarily the particles of at least one substance from the group comprising clinker, shale, metakaςlin, zeolite, talc, mica,,,wollastonite, glass, blast furnace slag, silica, kaolin and lime stone.
The main benefit of the component of the coating and/or building material according to this invention is a substantial enlargement of the surface of the active component according to the type and form of the filler and/or pigment as a carrier, substantial saving due, to the thin coat of the active component and thus, with a comparable content of the active component, reinforcement of the; photocatalytic effect.
Examples of embodiments of the invention Example 1
Silicate facing or interior coating containing nanocrystalline titanium dioxide: disperse 60 to 80 parts by mass of standard white pigment (zinc oxide, etc., titanium dioxide etc.) and 300 , parts by mass of mineral filler of specified fineness in 200 up to 240 parts by mass of water to which 3 parts by mass of dispersing agent have been added. Add 1 to 50 parts by mass of powdered mica coated with nanocrystalline titanium oxide photoactive in the region of visible light (KFD embodiment) to the obtained homogeneous mixture. After a short dispergation, add 250 up to 300 parts by mass of 20 to 30% dissolution of potassium water-glass. The obtained paint may be filled up with thickener, antifoaming agent, spreading agent etc., and possibly also with the polymeric dispersion of organic or inorganic type in the amount of 0,1 up to 30 % per dry matter.
This facing coating applied with a brush, a roller or by spraying, after the contained water-glass has been allowed to dry and mature thoroughly - by neutralizing it with atmospheric carbon dioxide, will form a well permeable, long-life weather-resistant surface layer with a long-term photocatalytic effect reducing the content of emission gases from the surrounding air.
Example 2
Coating containing nanocrystalline titanium oxide for KDF treatment of roofs, bridges and civil engineering structures: mix the transparent base for top surface treatment of rooftop concrete tiles with 0.1 up to 50 percent by mass of dry powder nanocrystalline titanium oxide, photoactive in the region of visible light (KFD). This compound is then used to perform the final treatment (overpainting) in the thickness of the dry film of 5 up to 30 μm, depending on the smoothness of the tiles surface. The created layer is sufficiently compact to ensure its resistance to water and its moderate thickness so that it could form a film partially permeable to gases and steam in the course of drying. The other physical - mechanical parameters of the surface treatment (adhesion to the base, colour tone, colour tone stability etc.) remain unchanged.
It is preferable to use polymeric coatings on the base of hydroxylated derivates of polyacrylic and polymetaacrylic acid as a binder for the preparation of the specified transparent base, or inorganic binders on the base of silicates, silicic esters, siloxanes or silicon alkyloxides. They can be well combined with ground glass coated with photoactive nanocrystaliine titanium dioxide to ensure high permeability to gases and, at the same time, high hydrophility necessary to enable the creation of the so-called "self-cleaning ability".
Example 3
Facing or interior coating containing nanocrystaliine titanium dioxide: disperse 60 to 80 parts by mass of standard white pigment (zinc oxide, etc., titanium dioxide etc.) and 300 parts by mass of mineral filler of specified fineness in 200 up to 240 parts by mass of water to which 2 parts by mass of dispersing agent have been added. Add 1 to 50 parts by mass of talc coated with nanocrystaliine titanium dioxide photoactive in the region of visible light (KFD embodiment) to the obtained homogeneous mixture. After a short dispergation, add 250 up to 400 parts by mass of 20 to 30% dissolution of inorganic binder on the base of hydroxyderivatives of acrylic or metaacrylic acid. The obtained paint may be filled up with thickener, antifoaming agent, spreading agent etc., and possibly also with the polymeric dispersion of organic or inorganic type in the amount of 0,1 up to 30 % per dry matter.
This facing or interior coating applied with a brush, a roller or by spraying, after the contained binder has been allowed to dry and mature thoroughly will form a well permeable, long-life, weather-resistant surface layer with a long-term photocatalytic effect reducing the content of emission gases from the environment and the coating itself will be resistant to the photocatalytic decomposition of the binder.
Example 4
Plastering containing binders coated with nanocrystalline titanium dioxide are analogous to the facing and interior coatings presented in Example 1.
Example 5
Facing boards, ceramics, glass and other building components may be provided with surface layers (treatments) containing filler coated with photoactive nanocrystalline titanium oxide, analogous to example 2.
Example 6
Building material or jointing compound containing one or more fillers or pigments, which are partially or completely coated with photoactive nanocrystalline titanium oxide.

Claims

P A T E N T C L A I M S
1. A component of coating and/or building material active from the aspect of catalysis of photodegradation of pollutants in the environment, wherein at least a part of the total amount of particles of this component is provided on its surface or at least on a part of it with a coat of substance from the group consisting of oxides and metal salts in nanocrystalline form with photocatalytic activity in the visible region of the solar spectrum.
2. A component of coating and/or building material according to claim 1, wherein the particles provided on its whole surface or at least on a part of it, with a coat comprising a substance from the group consisting of oxides and metal salts with photocatalytic activity are particles of filler and/or pigment.
3. A component of coating and/or building material according to claim 2, wherein the particles of the filler are particles of spathic, fibrous or spherical structure.
4. A component of coating and/or building material according to claiiη 1, wherein the substance from the group of oxides and metal salts with photocatalytic activity is titanium dioxide doped with oxides of transient metals, particularly Fe, Co, Ni, Mn, Cr, V, Ta, Nb, W and/or lathanoid oxides, particularly La, Ce, Nd, Y, Sm, Eu, Dy, which has the form of mostly spherical particles with lattice perturbances induced by dopants and it is photoactive under visible light.
5. A component of coating and/or building material according to claim 1, wherein the compound with photocatalytic activity from the group of oxides and metal salts are mixed oxides of the type of TiOxMeO on the base of titanium oxide doped with oxides of transient metals (MeO), where the metal (Me) is particularly Fe, Co, Ni, Mn, Cr, V, Ta, Nb, W and/or the lathanoid oxides, in particular La, Ce, Nd, Y, Sin, Eu, Dy.
6. A component of coating and/or building material according to clam 1, wherein the compound with photocatalytic activity from the group of oxides and metal salts creates the resulting product of homogeneous hydrolysis of T1CI3, TiCl4, or TiOSO4 by urea in aqueous medium.
7. A component of coating and/or building material according to clam 1, wherein the compound with photocatalytic activity from the group of oxides and metal salts in the form of transparent particles, which is the product of hydrolysis of T-CI3 or TiCl4 in the medium of polar polymers, as hydroxyethyi metaacrylate or inorganic binders on the base of silicates, esters of silicic acid, siloxanes or silicon alkyloxides.
8. A component of coating and/or building material according to claim 2, wherein the particles of the filler are the particles active from the aspect setting of the substance.
9. A component of coating and/or building material according to claim 8, wherein the particles of the filler are the particles of at least one substance from the group comprising clinker, shale, metakaolin, zeolite, talc, mica, wollastonite, glass, blast furnace slag, silica and lime stone.
10. Coating and/or building material containing a component according to claims 1 to 9.
PCT/CZ2009/000058 2008-04-25 2009-04-22 A particle surface • coated with photocatalytic oxides or metal salts and a coating and/or building material comprising the same WO2009129760A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZ20080261A CZ2008261A3 (en) 2008-04-25 2008-04-25 Component of coating and/or building material active from air pollutant photodegradation catalysis point of view and coating and/or building material based thereon
CZPV2008-261 2008-04-25

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Cited By (7)

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Publication number Priority date Publication date Assignee Title
CN102069001A (en) * 2010-12-20 2011-05-25 武汉钢铁(集团)公司 Preparation process for preparing photocatalyst from blast furnace slag serving as raw material
EP2484444A1 (en) * 2009-09-30 2012-08-08 Toto Ltd. Photocatalyst-coated object and photocatalyst coating liquid therefor
CN102732079A (en) * 2012-07-16 2012-10-17 广州立邦涂料有限公司 Exterior wall dope and preparation method of exterior wall dope
CN103849172A (en) * 2014-01-09 2014-06-11 华南理工大学 Method for synthesizing high-stability mica titanium reflecting coating
EP2754699A1 (en) * 2013-01-10 2014-07-16 Daw Se Coating material basis for an in particular matte paint, in particular for a facade paint, and an, in particular mat, paints, in particular facade paint, comprising this coating material basis, and coat of paint obtained with this, in particular matte, paint
CN104151984A (en) * 2014-07-10 2014-11-19 天途路业集团上海交通科技有限公司 Hot-melting liner coating capable of absorbing tail gas
CN105289571A (en) * 2015-11-02 2016-02-03 卢俊清 La-doped TiO2 nano-catalysis material used for low-temperature plasma catalysis synergistic effect

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WO2008019905A1 (en) * 2006-08-17 2008-02-21 Evonik Degussa Gmbh Silica coated zinc oxide particles obtainable by a flame pyrolysis process
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2484444A1 (en) * 2009-09-30 2012-08-08 Toto Ltd. Photocatalyst-coated object and photocatalyst coating liquid therefor
EP2484444A4 (en) * 2009-09-30 2013-02-27 Toto Ltd Photocatalyst-coated object and photocatalyst coating liquid therefor
CN102069001A (en) * 2010-12-20 2011-05-25 武汉钢铁(集团)公司 Preparation process for preparing photocatalyst from blast furnace slag serving as raw material
CN102069001B (en) * 2010-12-20 2012-07-04 武汉钢铁(集团)公司 Preparation process for preparing photocatalyst from blast furnace slag serving as raw material
CN102732079A (en) * 2012-07-16 2012-10-17 广州立邦涂料有限公司 Exterior wall dope and preparation method of exterior wall dope
EP2754699A1 (en) * 2013-01-10 2014-07-16 Daw Se Coating material basis for an in particular matte paint, in particular for a facade paint, and an, in particular mat, paints, in particular facade paint, comprising this coating material basis, and coat of paint obtained with this, in particular matte, paint
CN103849172A (en) * 2014-01-09 2014-06-11 华南理工大学 Method for synthesizing high-stability mica titanium reflecting coating
CN103849172B (en) * 2014-01-09 2015-12-02 华南理工大学 A kind of method of synthesizing high light stability mica titanium reflective paint
CN104151984A (en) * 2014-07-10 2014-11-19 天途路业集团上海交通科技有限公司 Hot-melting liner coating capable of absorbing tail gas
CN105289571A (en) * 2015-11-02 2016-02-03 卢俊清 La-doped TiO2 nano-catalysis material used for low-temperature plasma catalysis synergistic effect

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