Patents for C01G 25 - Compounds of zirconium (4,186)
08/1994
08/24/1994EP0611738A1 Preparation of mixed powders
08/23/1994CA1331598C High stability porous zirconium oxide spherules
08/17/1994EP0611192A1 Process for the preparation of compositions based on mixed oxides of zirconium and cerium
08/17/1994EP0611039A1 Preparation of titanium dioxide
08/16/1994US5338353 Method for production of powder of fine inorganic particles
08/16/1994US5338334 Process for preparing submicron/nanosize ceramic powders from precursors incorporated within a polymeric foam
08/14/1994CA2113596A1 Preparation of mixed powders
08/10/1994CN1090521A Dissolving method for titanium and zirconium metal
08/09/1994US5336521 Metallic oxides
08/04/1994WO1994016989A1 Process for producing nanoscale ceramic powders
07/1994
07/20/1994EP0377701B1 Grinding process
07/06/1994EP0605274A1 Composition based on a mixed oxide of cerium and zirconium, preparation and use
07/06/1994EP0604829A1 Zircon brick and process for its production
06/1994
06/29/1994CN1088623A Electric melting method for making stable zirconium oxide
06/28/1994US5324355 Controlled particle size crystalline zirconium dioxide embedded in amorphous silicon dioxide from rapid quenching of free-falling melt stream of zirconium silicate
06/22/1994EP0439620B1 Method of producing pulverized perovskite compound
06/14/1994US5320917 Crystal structure containing zirconium, lead and tin cations
06/14/1994US5320675 Waterproof
06/09/1994WO1994012435A1 Process for making solutions containing basic zirconium and hafnium chlorides
06/08/1994CN1087604A Preparation high-purity zirconium dioxide from zircon ore concentrate
06/07/1994US5318797 Coated particles, hollow particles, and process for manufacturing the same
06/07/1994US5318765 Monoclinic zirconium dioxide, method of its production and use
05/1994
05/17/1994US5312613 Process for producing ceramic precursor powders without gel formation
05/10/1994US5310709 Production of nonreducible dielectric ceramic composition
05/03/1994US5308601 Preparing a metal hydroxycarboxylate compound which reacts with a metal alkoxide to form a soluble intermediate and thermally decomposing intermediate in an oxygen environment
04/1994
04/27/1994EP0593695A1 Method for the synthesis of mixed metal oxide crystalline powders
04/19/1994US5304537 M-Tl-Ba-Cu-O high temperature superconductors wherein M is selected from the group consisting of Ti, Zr and Hf
04/19/1994CA1328555C Reactive zirconium oxide and its preparation
03/1994
03/29/1994US5298640 Antiperspirant composition
03/24/1994DE4231757A1 Producing lead zirconate-titanate ceramic powder - by spray drying salt solution and calcining
03/23/1994EP0587672A1 Method of producing nanometer-sized oxide particles.
03/22/1994US5296623 Reacting zirconium carbonate and aluminum hydroxide with acid, adding amino acid, recovering product
03/16/1994EP0587417A2 Boride materials for electronic elements and method of preparing the same
03/09/1994EP0585712A1 Preparation of shaped zirconia particles
03/08/1994US5292693 Slurry composition and sintered part prepared therefrom
03/08/1994US5292553 Ultra thin zircon coating and membrane
03/03/1994WO1994004459A1 Preparation of nanophase solid state materials
03/03/1994WO1994004263A1 Preparation of solid state materials
03/03/1994CA2142701A1 Preparation of solid state materials
02/1994
02/16/1994EP0582598A1 Removal of radioactivity from zircon.
02/09/1994EP0582386A1 Modified stannic oxide-zirconium oxide composite sol and process for preparing the same
01/1994
01/25/1994CA1326344C Antiperspirant composition and method of preparation
01/20/1994WO1994001361A1 Method and apparatus for making nanometer sized particles
01/18/1994CA1326122C Process for forming metal oxide powders from the metal alkoxide
01/11/1994CA1325879C Process for the manufacture of zirconium oxide hydrate from granular crystallized zirconium oxide
01/04/1994US5276412 High-frequency filter having increased mechanical strength
01/04/1994US5275759 Zirconia sol, method for production thereof, porous ceramic-producing slurry, and porous ceramic product obtained by use thereof
12/1993
12/23/1993WO1993025611A1 Inorganic fillers and organic matrix materials whose refractive index is adapted
12/16/1993DE4219287A1 Anorganische Füllstoffe und organische Matrixmaterialien mit Brechungsindex-Anpassung Inorganic fillers and organic matrix materials having a refractive index matching
12/14/1993US5269990 Extruding aqueous mixture of acid and zirconia powder, calcining
12/09/1993WO1993024411A1 A method for preparing mixed metal oxides
12/09/1993CA2136525A1 A method for preparing mixed metal oxides
12/08/1993EP0547085A4 Basic aluminum and aluminum/zirconium antiperspirants and method of making the same
11/1993
11/25/1993WO1993023333A1 Process for making inorganic gels
11/25/1993CA2135875A1 Process for making inorganic gels
11/18/1993EP0569765A1 Apparatus for manufacturing fine metal and ceramic powder
11/16/1993US5262373 Alkali metal salt oxidizer
11/11/1993DE4214724A1 High purity ceramic oxide powder of particle size 1.0-500 nm - shows low deviation from mean particle size lying within a narrow range, being composed of metal oxide(s), e.g. 2-alumina and zirconium oxide
11/11/1993DE4214719A1 Metallic and/or ceramic powders - produced by gas phase reaction (CVR) of metallic cpds. plus other named reactants in tubular reactor have narrow, predetermined size range and high purity
11/09/1993CA1324106C Process of separation of hafnium from zirconium by molten salt electrolysis
11/04/1993DE4213832A1 Mfr. of ceramic powder by pyrolysis - through action of microwaves on organo-metallic precursors
10/1993
10/28/1993DE4214631A1 Fine ceramic powder prodn. with good sintering properties - by impregnating starter material with precursor and heating to decompose using microwave beam
10/27/1993EP0395667B1 Continuous process for production of fine particulate ceramics
10/26/1993US5256389 High surface area metal oxide foams
10/12/1993US5252316 Zirconium oxide powder, process for its preparation and its use
10/12/1993US5252310 Reactive derivative of zirconium and its preparation
09/1993
09/28/1993US5248318 Lapping abrasive of alumina-zirconia system and method for producing the same
09/07/1993US5242674 Process for preparing crystalline mixed metal oxides
09/01/1993EP0316390B1 Method for producing a fine powder of metal oxide (zirconium, hafnium, titanium) having a specific surface or a predetermined grain size
08/1993
08/31/1993US5240493 Process for preparing submicron/nanosize ceramic powders from precursors incorporated within a polymeric foam
08/25/1993EP0556224A1 Method for producing a powder of mixed metal oxides
08/25/1993EP0556196A1 Powdered mixtures of metal oxides having dielectric properties, and dielectrics prepared therefrom
08/24/1993US5238625 Process for preparing zirconia sols and/or zirconia forms
08/10/1993US5234870 Zirconia sol and method for production thereof
07/1993
07/28/1993EP0214308B1 Method for preparing super-fine spherical particles of metal oxide
07/21/1993EP0552133A1 Process for preparing submicron/nanosize ceramic powders from precursors incorporated within a polymeric foam
07/20/1993US5228910 Particle size control
07/07/1993EP0550049A1 Method for manufacturing ultrathin inorganic membranes
07/06/1993US5225187 Complexing aluminum zirconium and glycine by blending and cooling
06/1993
06/29/1993US5223176 Stabilizing with mixture of water soluble organic acid and alcohol
06/23/1993EP0547085A1 Basic aluminum and aluminum/zirconium antiperspirants and method of making the same
06/15/1993US5219829 Process and apparatus for the preparation of pulverulent metal oxides for ceramic compositions
06/09/1993EP0545135A1 Production of sols of metal oxides by electrolysis
06/02/1993CN1072740A Preparation of metal oxide sols by electrolysis
05/1993
05/31/1993CA2084024A1 Preparation of metal oxide sols by electrolysis
05/26/1993EP0448604A4 Process for producing highly crystalline and homogeneous sub-micron doped and undoped piezoelectric ceramic powders with controlled stoichiometry and particle size
05/19/1993CN1020674C Method of introduction of zirconium tetrachloride hafnium tetrachloride and mixture of them into distilling column for continuous extraction of said chlorides under pressure
05/12/1993EP0541254A1 Metallic oxides coated powder
05/11/1993CA1317438C Method and system for manufacturing fine-grained silicon monoxide
05/04/1993US5207973 Atomizing drops of aqueous solution by pulsed electric field; forming metal hydroxide; drying
05/03/1993CA2079973A1 Metallic oxides
04/1993
04/28/1993EP0332686B1 Process for preparing metallic oxides
04/27/1993US5206192 Stabilized metal oxides
04/27/1993US5205929 Particles having controlled size and porosity for chromatographic immobilization and separation of proteins, enzymes, antibodies
04/20/1993US5204031 Mixed oxide containing lead; high density, noncracking
04/15/1993WO1993006923A1 Aminoalkylphosphonic acid containing ligands attached to solid supports for removal of metal ions
04/07/1993EP0535897A1 Ultra thin zircon coating and membrane
04/07/1993EP0535796A2 Stabilised metal oxides
04/02/1993CA2075735A1 Stabilised metal oxides
03/1993
03/30/1993US5198269 Process for making sol-gel deposited ferroelectric thin films insensitive to their substrates
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