Compositions – Inorganic luminescent compositions – Tungsten containing
Patent
1995-06-07
1998-03-10
Lovering, Richard D.
Compositions
Inorganic luminescent compositions
Tungsten containing
252314, 252 6256, 423634, B01J 1300, C01G 4902
Patent
active
057258023
ABSTRACT:
Process for preparing ultrafine inorganic particles of size lower than 50 nm, preferably lower than 10, with narrow size distribution, of metals, oxides, sulphides, carbonates by starting from microemulsions of water in a fluorinated oil, preferably a perfluoropolyether oil, containing metal ions in the aqueous phase and by reacting them with a reactant which is gaseous, or vapour, in the reaction conditions, for obtaining the above indicated compounds.
REFERENCES:
patent: 3665041 (1972-05-01), Sianesi et al.
patent: 3784471 (1974-01-01), Kaiser
patent: 4523039 (1985-06-01), Lagow et al.
patent: 4599184 (1986-07-01), Nakatani et al.
patent: 4613520 (1986-09-01), Dasgupta
patent: 4981819 (1991-01-01), Rinn
patent: 4990283 (1991-02-01), Visca et al.
patent: 5049307 (1991-09-01), Tabony
patent: 5180512 (1993-01-01), Nakatani et al.
patent: 5238671 (1993-08-01), Matson et al.
patent: 5484766 (1996-01-01), Shah et al.
Robinson et al., "Characterisation of Cadmium Sulphide Colloides in Reverse Micelles," Colloids and Surfaces 61, 175-188, (1991) Month unavailable.
Persico et al., "Synthesis of Perfluoropolyethers via Hydrocarbon Polyesters: A New General Method," J. Am. Chem. Soc. 107, 1197-1201, (1985) Month unavailable.
Lopez-Quintela et al., "Chemical Reactions in Microemulsions: A Powerful Method to Obtain Ultrafine Particles," Journal of Colloid and Interface Science 158, 446-451, (1993) Month unavailable.
Boutonnet et al., "The Preparation of Monodisperse Colloidal Metal Particles From Microemulsions," Colloids and Surfaces 5, 209-225, (1982) Month unavailable.
Davies et al., "The Effect of Temperature and Oleate Adsorption on the Growth of Maghemite Particles," Journal of Magnetism and Magnetic Materials 122, 24-28 (May 27, 1993).
Derwent Abstract, AN 90-117487/16 (corresponding to EP 363927-A and US 4,981,819), 1990.
Boselli Viviana
Chittofrati Alba
Ausimont S.p.A.
Lovering Richard D.
Metzmaier Daniel S.
LandOfFree
Preparation of ultrafine particles from water-in-oil microemulsi does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Preparation of ultrafine particles from water-in-oil microemulsi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of ultrafine particles from water-in-oil microemulsi will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-136739