WO2004046035A2 - Verfahren zur herstellung von erdalkalisulfatnanopartikeln - Google Patents
Verfahren zur herstellung von erdalkalisulfatnanopartikeln Download PDFInfo
- Publication number
- WO2004046035A2 WO2004046035A2 PCT/DE2003/003823 DE0303823W WO2004046035A2 WO 2004046035 A2 WO2004046035 A2 WO 2004046035A2 DE 0303823 W DE0303823 W DE 0303823W WO 2004046035 A2 WO2004046035 A2 WO 2004046035A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- nanoparticles
- sulfate
- synthesis
- organic
- barium
- Prior art date
Links
Classifications
-
- 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
- C09C1/02—Compounds of alkaline earth metals or magnesium
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K49/00—Preparations for testing in vivo
- A61K49/04—X-ray contrast preparations
- A61K49/0404—X-ray contrast preparations containing barium sulfate
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K49/00—Preparations for testing in vivo
- A61K49/04—X-ray contrast preparations
- A61K49/0409—Physical forms of mixtures of two different X-ray contrast-enhancing agents, containing at least one X-ray contrast-enhancing agent which is not a halogenated organic compound
- A61K49/0414—Particles, beads, capsules or spheres
- A61K49/0423—Nanoparticles, nanobeads, nanospheres, nanocapsules, i.e. having a size or diameter smaller than 1 micrometer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y5/00—Nanobiotechnology or nanomedicine, e.g. protein engineering or drug delivery
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/46—Sulfates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/46—Sulfates
- C01F11/462—Sulfates of Sr or Ba
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F5/00—Compounds of magnesium
- C01F5/40—Magnesium sulfates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/50—Solid solutions
- C01P2002/52—Solid solutions containing elements as dopants
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/80—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
- C01P2002/84—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by UV- or VIS- data
-
- 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
- C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
-
- 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
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S977/00—Nanotechnology
- Y10S977/70—Nanostructure
- Y10S977/773—Nanoparticle, i.e. structure having three dimensions of 100 nm or less
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S977/00—Nanotechnology
- Y10S977/70—Nanostructure
- Y10S977/773—Nanoparticle, i.e. structure having three dimensions of 100 nm or less
- Y10S977/775—Nanosized powder or flake, e.g. nanosized catalyst
Definitions
- the present invention is in the field of synthesis of nanoparticles.
- Z-sulfate (ZS0 4 ) Parti- no are usually carried out as a precipitation reaction in aqueous solution.
- the resulting size of the primary particles ranges from around 100 nanometers to millimeters. Due to the manufacturing process, these particles are agglomerated and not homogeneously dispersible in any desired matrix.
- ZS0 ' is a well-known host lattice for dopants and is used in the phosphor industry. It is also an important filling material in the plastics industry. Particle agglomerates produced so far are so large that they significantly change the optical behavior and transparency of the plastic and cannot be incorporated into the polymer matrix without problems. These problems can be avoided with homogeneously distributed nanoparticles, the surface of which is adapted to the respective matrix. Another use is detects BaS0 4 in particular as a contrast medium for the X-Ray
- DE 100 05 685 discloses a production process for barium sulfate nanoparticles with an average particle diameter d50 of 100 to 10,000 nanometers.
- the particles are produced in an aqueous solution, preferably in a solution containing sodium sulfate (Na2S04) or sulfuric acid (H2S04).
- a disadvantage of this method is that no particles with a smaller average particle diameter can be produced without subjecting them to at least one further process step, namely a grinding process (wet grinding process).
- the separated barium sulfate filter cake is first processed into a paste, which is then mixed with the additive, or
- the filter cake is dried and then mixed with the additive, whereby this can preferably be done in a spray grinding process in which the additive, if it is in solid form as the starting material, still has to be brought into solution.
- This production process is cumbersome due to the subsequent process step for applying the additive and has an unsatisfactory yield, at least due to the subsequent grinding process.
- the object of the present invention is therefore to produce at least barium sulfate nanoparticles with a significantly smaller average particle diameter in a simple manner, the particles being said to be homogeneously dispersible in water.
- the object of the independent claims solves this problem, not only for barium sulfate nanoparticles, but also for other alkaline earth sulfate nanoparticles, namely magnesium, calcium and strontium sulfate nanoparticles, or for nanoparticles made from binary mixtures thereof.
- Z sulfate magnesium (Mg), calcium (Ca), strontium (Sr), or barium (Ba)
- the particles resulting from the synthesis are 0.5 to 50 nanometers (nm) in size, preferably 2-30 nm and particularly preferably 5-20 nm with a size distribution of 50%, preferably 20%, particularly preferably 10-15%.
- nm nanometers
- reaction time or reactant concentration particles of different sizes are obtained depending on the recipe.
- the size distribution depends specifically on the molecule used to control growth and the solvent used.
- a central function of the coordinating solvent is to slow down crystal growth compared to synthesis without coordinating solvent, so that it is fundamentally possible in terms of laboratory technology, including the time factor as the residence time of the nanoparticles in the synthesis mixture as control parameters in addition to the recipe mentioned above -specific parameters to control the growth of size.
- coordinating solvents such as glycerin, ethylene glycol and other polyethylene glycols, polyalcohols or dimethyl sulfoxide (DMSO) are used in the present invention.
- the barium is preferably introduced as chloride and the sulfate source is preferably introduced as tetrabutylammonium hydrogen sulfate.
- Further metal dopants which can optionally be incorporated into the lattice of the nanoparticles during the synthesis are also preferably used as chlorides.
- the nanoparticles obtained according to the invention can be produced extremely small with an average diameter between 2 and 50 nanometers and can be dispersed homogeneously in water in a particularly preferred manner without further aftertreatment.
- they can also be easily dispersed in many other solvents, even after post-treatment. Examples include toluene and chloroform.
- the synthesis mixture can also contain a non-coordinating solvent.
- the particle size can be adjusted with its share in the total solvent. In principle, the following applies: the less coordinating solvent is used, the larger the particles.
- nanoparticles with an average diameter of less than 50 nm can be produced.
- sulfate source tetrabutylhammonium hydrogen sulfate, bis (trimethylsilyl) sulfate, ammonium hydrogen sulfates of the type R 2 R 3 R 4 NHS0, ammonium hydrogen sulfate, ammonium sulfate, alkali sulfates, alkali hydrogen sulfates, amantadine sulfate, ethylenediammonium sulfate and hydrazin
- metal nitrate, metal bromide or metal iodide preferably the metal chloride
- the preferred dopants are one of the following ions:
- Y Ce (III), Sm (III), Pr (III), Nd (III), Gd (III), Tb (III), Dy (III), Ho (III), Er (III), Tm (III ), Yb (III), Lu (III), Eu (III),
- Aftertreatment of the finished-synthesized nanoparticles can be carried out optionally and advantageously in order to specifically modify the surface of the nanoparticles depending on the later intended use, and thus to make them suitable.
- the particles can be processed by a subsequent chemical modification of the surface so that they can be homogeneously dispersed in any desired matrix.
- a phosphate preferably trisethylhexylphosphate or tributylphosphate, an amine, preferably dodecylain, a phosphonate, a phosphine, preferably trioctylphosphine, a phosphine oxide, preferably trioctylphosphine oxide, a carboxylic acid, alcohols, preferably polyhydric alcohols
- the nanoparticles presented here can now be administered intravenously, since they are homogeneously distributed and blockage of veins, arteries and other blood vessels is not to be expected.
- the barium sulfate nanoparticles can be used as a universal carrier for in vivo diagnostics.
- the raw materials used are commercially available from the following sources:
- a small amount of 1 g BaCl 2 and 0.15 g MnCl 2 are dissolved in ethylene glycol and dried overnight at 50 ° C.
- 0.07 g of EuCl 3 , 0.54 g of imidazole and 1.32 g of tetrabutylammonium hydrogen sulfate are dissolved in a second vessel and dried overnight at room temperature (RT).
- the two solutions are then mixed at RT and then stirred at 180 ° C. for two hours.
- the resulting precipitate is then centrifuged off and washed with methanol.
- the result is approx. 1 g BaS04: Mn, Eu nanoparticles, with a homogeneous size distribution of 15% around an average particle size of 10 nm.
- EuCl 3 (EuCl sub3) is advantageously used as the starting material to convert EU (II) as ions into the Install a grid. This is far cheaper and enables easier and more successful synthesis than if EuCl 2 (EuCl 2) were used as the starting material.
- the method can also be carried out for larger quantities in accordance with the method described.
- the method can also be carried out for larger quantities in accordance with the method described.
- Barium sulfate prepared as described under 1. above is brought together in sufficient quantity with dodecylamine as the modification molecule - at least in a ratio of 1: 1 percent by weight of barium sulfate to the modification molecule and then preferably with the exclusion of oxygen at the boiling point of the dodecylamine, preferably 100-300 ° C heated and held there with constant stirring for 0.1-2 hours.
- the nanoparticles are soluble in toluene.
- MgCl2 0.305 g of MgCl2, 0.329 g of CaC12 and 0.158 g of MnC12 are stirred in 25 ml of ethylene glycol at room temperature (RT) until the metal salts have completely dissolved and then dried at 50 ° C. under reduced pressure overnight.
- the method can also be carried out for larger quantities in accordance with the method described.
- a further effect can be benefited: the addition of magnesium (Mg) causes a shift in the manganese emission and thus a change in the color impression.
- the position of the manganese fluorescence band is determined by the lattice-forming alkaline earth metal ion, so that shifts in the band are caused by binary mixtures. This is accompanied by a change in the color impression.
- This effect is shown by way of example in FIG. 1, with a shift in the emission band by approximately 16 nm, the emission maximum shifting from approximately 576 nm to 560 nm.
- Nanoparticles harmless to the human body Due to the extremely small particle size, marker liquids that carry these nanoparticles can also measure through the narrowest cross-sections without them tending to become blocked.
- Z-sulfate nanoparticles according to the invention with an average particle size of 0.5-50 nm as carriers and host grids for radioactive isotopes in isotope diagnostics.
- the substance Z-sulfate produced according to the invention in the form of the nanoparticles with an average particle size of 0.5-50 nm can advantageously also be used as a filler for the smallest plastic parts, thinnest foils, with the aim of improving the mechanical behavior of the plastic without loss of the optical properties , furthermore for paints and varnishes, without affecting their flowability or other properties. They can also be used for products such as car tires, film carriers or as an intermediate product for masterbatches and compounds.
- the present invention is not limited to the simplified production of Z-sulfate nanoparticles up to 50 nanometers.
- Significant advantages can also be achieved in the synthesis of Z-sulfate nanopatricles with a particle diameter of d50> 50 or d50> 100 nanometers, since the nanoparticles are produced in a 1-step process, in contrast to the prior art, which reduces the cost and simplifies production , For this, the nanoparticles are left in the synthesis mixture longer.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Nanotechnology (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- General Health & Medical Sciences (AREA)
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- Composite Materials (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Medicinal Chemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Pharmacology & Pharmacy (AREA)
- Biotechnology (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Luminescent Compositions (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
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- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
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Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50313655T DE50313655D1 (de) | 2002-11-21 | 2003-11-19 | Verfahren zur herstellung von erdalkalisulfatnanopartikeln |
JP2004552413A JP4593283B2 (ja) | 2002-11-21 | 2003-11-19 | アルカリ土類硫酸塩ナノ粒子の製造法 |
US10/535,864 US7288239B2 (en) | 2002-11-21 | 2003-11-19 | Method for producing alkaline earth sulphate nanoparticles |
AU2003287872A AU2003287872B2 (en) | 2002-11-21 | 2003-11-19 | Method for producing alkaline earth sulphate nanoparticles |
EP03779709A EP1562860B1 (de) | 2002-11-21 | 2003-11-19 | Verfahren zur herstellung von erdalkalisulfatnanopartikeln |
CA2505511A CA2505511C (en) | 2002-11-21 | 2003-11-19 | Method for producing alkaline earth sulphate nanoparticles |
AT03779709T ATE507188T1 (de) | 2002-11-21 | 2003-11-19 | Verfahren zur herstellung von erdalkalisulfatnanopartikeln |
HK06105512A HK1085453A1 (en) | 2002-11-21 | 2006-05-12 | Alkaline earth sulphate nanoparticles and producing method thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10254567.7 | 2002-11-21 | ||
DE10254567A DE10254567A1 (de) | 2002-11-21 | 2002-11-21 | Verfahren zur Herstellung von Erdalkalisulfatnanopartikeln |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2004046035A2 true WO2004046035A2 (de) | 2004-06-03 |
WO2004046035A3 WO2004046035A3 (de) | 2005-01-13 |
Family
ID=32308657
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2003/003823 WO2004046035A2 (de) | 2002-11-21 | 2003-11-19 | Verfahren zur herstellung von erdalkalisulfatnanopartikeln |
Country Status (13)
Country | Link |
---|---|
US (1) | US7288239B2 (de) |
EP (1) | EP1562860B1 (de) |
JP (1) | JP4593283B2 (de) |
KR (1) | KR101014359B1 (de) |
CN (1) | CN100354207C (de) |
AT (1) | ATE507188T1 (de) |
AU (1) | AU2003287872B2 (de) |
CA (1) | CA2505511C (de) |
DE (2) | DE10254567A1 (de) |
ES (1) | ES2361247T3 (de) |
HK (1) | HK1085453A1 (de) |
RU (1) | RU2338690C2 (de) |
WO (1) | WO2004046035A2 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005105933A1 (en) * | 2004-05-04 | 2005-11-10 | Centrum Für Angewandte Nanotechnologie (Can) Gmbh | Process for preparing dispersible sulfate, preferably barium sulfate nanoparticles |
JP2006213822A (ja) * | 2005-02-03 | 2006-08-17 | Keio Gijuku | 微粒蛍光体の製造方法 |
WO2008084028A2 (de) * | 2007-01-09 | 2008-07-17 | Nanogate Ag | Beschichtete bariumsulfatnanopartikel als kontrastmittel |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2003248074A1 (en) * | 2002-07-16 | 2004-02-02 | Futaba Corporation | Composite nanoparticle and process for producing the same |
DE102006027915B4 (de) * | 2006-06-17 | 2010-08-26 | K+S Ag | Verfahren zur Herstellung von Mg(OH)2-Nanopartikeln |
WO2009133881A1 (ja) * | 2008-04-28 | 2009-11-05 | 宇部マテリアルズ株式会社 | 塩基性硫酸マグネシウム粒状物及びその製造方法 |
CN102277156B (zh) * | 2011-04-29 | 2013-10-09 | 北京工商大学 | 一种电子俘获材料的制备方法 |
CN102675922B (zh) * | 2012-05-23 | 2013-12-25 | 贵州红星发展股份有限公司 | 亚微米级球状硫酸锶、其制备及应用 |
US8945494B1 (en) * | 2013-05-24 | 2015-02-03 | University Of Puerto Rico | Synthesis of calcium sulfide (CaS) nanoparticles |
CN106698496A (zh) * | 2016-12-30 | 2017-05-24 | 安徽壹石通材料科技股份有限公司 | 一种亚微米硫酸钡粉体的制备方法 |
CN113998726B (zh) * | 2021-12-08 | 2023-07-28 | 安徽壹石通材料科技股份有限公司 | 一种中空硫酸钡及其制备方法 |
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WO2001007487A1 (de) * | 1999-07-22 | 2001-02-01 | MAX-PLANCK-Gesellschaft zur Förderung der Wissenschaften e.V. | Polyreaktionen in nichtwässrigen miniemulsionen |
DE10005685A1 (de) * | 2000-02-09 | 2001-08-23 | Sachtleben Chemie Gmbh | Bariumsulfat, Verfahren zu dessen Herstellung und dessen Verwendung |
DE10026791A1 (de) * | 2000-05-31 | 2001-12-06 | Solvay Barium Strontium Gmbh | Mikronisiertes Bariumsulfat |
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DE3703377C2 (de) * | 1987-02-05 | 1994-05-19 | Metallgesellschaft Ag | Verfahren zur Herstellung von ultrafeinem Bariumsulfat durch Fällung |
DE3718277A1 (de) * | 1987-05-30 | 1988-12-15 | Metallgesellschaft Ag | Verfahren zur herstellung von bariumsulfat mit chemoreaktiver oberflaeche |
DE3810423A1 (de) * | 1988-03-26 | 1989-10-12 | Metallgesellschaft Ag | Thermoplastische formmassen |
DE3825774A1 (de) * | 1988-07-29 | 1990-02-01 | Metallgesellschaft Ag | Verfahren zur herstellung von ultrafeinem bariumsulfat |
JPH04372712A (ja) * | 1991-06-24 | 1992-12-25 | Matsushita Electric Ind Co Ltd | 磁気記録媒体 |
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-
2002
- 2002-11-21 DE DE10254567A patent/DE10254567A1/de not_active Ceased
-
2003
- 2003-11-19 WO PCT/DE2003/003823 patent/WO2004046035A2/de active Application Filing
- 2003-11-19 ES ES03779709T patent/ES2361247T3/es not_active Expired - Lifetime
- 2003-11-19 CA CA2505511A patent/CA2505511C/en not_active Expired - Fee Related
- 2003-11-19 CN CNB2003801038612A patent/CN100354207C/zh not_active Expired - Fee Related
- 2003-11-19 DE DE50313655T patent/DE50313655D1/de not_active Expired - Lifetime
- 2003-11-19 EP EP03779709A patent/EP1562860B1/de not_active Expired - Lifetime
- 2003-11-19 US US10/535,864 patent/US7288239B2/en not_active Expired - Fee Related
- 2003-11-19 AT AT03779709T patent/ATE507188T1/de active
- 2003-11-19 AU AU2003287872A patent/AU2003287872B2/en not_active Ceased
- 2003-11-19 KR KR1020057009204A patent/KR101014359B1/ko not_active IP Right Cessation
- 2003-11-19 RU RU2005119161/15A patent/RU2338690C2/ru not_active IP Right Cessation
- 2003-11-19 JP JP2004552413A patent/JP4593283B2/ja not_active Expired - Fee Related
-
2006
- 2006-05-12 HK HK06105512A patent/HK1085453A1/xx not_active IP Right Cessation
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WO2001007487A1 (de) * | 1999-07-22 | 2001-02-01 | MAX-PLANCK-Gesellschaft zur Förderung der Wissenschaften e.V. | Polyreaktionen in nichtwässrigen miniemulsionen |
DE10005685A1 (de) * | 2000-02-09 | 2001-08-23 | Sachtleben Chemie Gmbh | Bariumsulfat, Verfahren zu dessen Herstellung und dessen Verwendung |
DE10026791A1 (de) * | 2000-05-31 | 2001-12-06 | Solvay Barium Strontium Gmbh | Mikronisiertes Bariumsulfat |
Non-Patent Citations (4)
Title |
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DATABASE CHEMABS [Online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; REES, GARETH D. ET AL: "Formation and Morphology of Calcium Sulfate Nanoparticles and Nanowires in Water-in-Oil Microemulsions" XP002296675 gefunden im STN Database accession no. 130:228259 & LANGMUIR , 15(6), 1993-2002 CODEN: LANGD5; ISSN: 0743-7463, 1999, * |
DATABASE CHEMABS [Online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; SUMMERS, MARK ET AL: "Formation of BaSO4 Nanoparticles in Microemulsions with Polymerized Surfactant Shells" XP002296674 gefunden im STN Database accession no. 136:391444 & LANGMUIR , 18(12), 5023-5026 CODEN: LANGD5; ISSN: 0743-7463, 2002, * |
DATABASE WPI Section Ch, Week 199306 Derwent Publications Ltd., London, GB; Class A85, AN 1993-048718 XP002296676 & JP 04 372712 A (MATSUSHITA ELEC IND CO LTD) 25. Dezember 1992 (1992-12-25) * |
DATABASE WPI Week 9418 Derwent Publications Ltd., London, GB; AN 94-147677 XP001165595 & JP 06 092630 A (KAOS CORP) 5. April 1994 (1994-04-05) * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005105933A1 (en) * | 2004-05-04 | 2005-11-10 | Centrum Für Angewandte Nanotechnologie (Can) Gmbh | Process for preparing dispersible sulfate, preferably barium sulfate nanoparticles |
US7575734B2 (en) | 2004-05-04 | 2009-08-18 | Centrum Fur Angewandte Nanotechnologie (Can) Gmbh | Process for preparing dispersible sulfate, preferably barium sulfate nanoparticles |
JP2006213822A (ja) * | 2005-02-03 | 2006-08-17 | Keio Gijuku | 微粒蛍光体の製造方法 |
WO2008084028A2 (de) * | 2007-01-09 | 2008-07-17 | Nanogate Ag | Beschichtete bariumsulfatnanopartikel als kontrastmittel |
WO2008084028A3 (de) * | 2007-01-09 | 2009-03-05 | Nanogate Ag | Beschichtete bariumsulfatnanopartikel als kontrastmittel |
Also Published As
Publication number | Publication date |
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CN100354207C (zh) | 2007-12-12 |
RU2338690C2 (ru) | 2008-11-20 |
KR20050085101A (ko) | 2005-08-29 |
JP2006507203A (ja) | 2006-03-02 |
EP1562860B1 (de) | 2011-04-27 |
DE10254567A1 (de) | 2004-06-09 |
CA2505511C (en) | 2012-05-08 |
WO2004046035A3 (de) | 2005-01-13 |
AU2003287872B2 (en) | 2010-04-22 |
EP1562860A2 (de) | 2005-08-17 |
CN1714046A (zh) | 2005-12-28 |
CA2505511A1 (en) | 2004-06-03 |
US7288239B2 (en) | 2007-10-30 |
RU2005119161A (ru) | 2006-01-20 |
JP4593283B2 (ja) | 2010-12-08 |
ES2361247T3 (es) | 2011-06-15 |
AU2003287872A1 (en) | 2004-06-15 |
DE50313655D1 (de) | 2011-06-09 |
KR101014359B1 (ko) | 2011-02-15 |
HK1085453A1 (en) | 2006-08-25 |
US20060133987A1 (en) | 2006-06-22 |
ATE507188T1 (de) | 2011-05-15 |
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