| Patents for C01G 25 - Compounds of zirconium (4,186) |
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| 10/09/1991 | EP0450674A1 Process for preparing mixed oxides of zirconium and yttrium |
| 10/08/1991 | CA1290136C Process for preparing fine particles of metal oxides |
| 10/02/1991 | EP0448604A1 Process for producing highly crystalline and homogeneous sub-micron doped and undoped piezoelectric ceramic powders with controlled stoichiometry and particle size |
| 10/01/1991 | US5053214 Hydrolyzing acidic alcohol solution of zirconium compound; complexing, stabilizing, drying |
| 09/26/1991 | DE4009422A1 Sinterable oxide powder prodn. - from metal soap(s), esp. for mfg. oxide-ceramic |
| 09/25/1991 | EP0448302A2 Carbon-clad inorganic oxide particles and the same with a polymer coating thereon |
| 09/17/1991 | US5049371 Process for the preparation of monodisperse ceramic powders |
| 09/10/1991 | US5047388 Superconductor and method for its production |
| 09/10/1991 | US5047174 Production of stable metal oxide sols |
| 09/10/1991 | CA1288573C Metallic oxide powder manufacturing process for use in ceramics, and zirconium powder thus made |
| 09/04/1991 | EP0444736A1 Process for preparing mixed zirconium and yttrium oxide powders |
| 09/04/1991 | EP0444564A2 Direct process for the preparation of activated antiperspirant salts |
| 09/04/1991 | EP0444060A1 Production of metal oxide powder, and zirconium oxide powder |
| 08/14/1991 | EP0377701A4 Grinding process |
| 08/14/1991 | EP0107700B1 Method for fabricating ceramic materials |
| 08/13/1991 | CA1287475C Method for producing fine particles of lead zirconate |
| 08/13/1991 | CA1287472C Method for producing a flaky material |
| 08/07/1991 | EP0439620A1 Method of producing pulverized perovskite compound |
| 08/07/1991 | CN1013433B High dispersion sel or sol of monoclinic zirconium dioxide supermicrocrystallite and process for preparing them |
| 08/06/1991 | US5037579 Mixing zirconium acetate with acetic acid; heating solution; monodispersed submicron particles for use in ceramics and surface coatings |
| 07/30/1991 | US5035876 Process for preparing a precursor of zirconium dioxide |
| 07/17/1991 | EP0437154A1 Zirconia stabilized by yttrium and cerium oxides |
| 07/16/1991 | US5032559 Method of preparing barium, titanium, zirconium oxide ferroelectric ceramic compositions |
| 07/16/1991 | US5032555 Process for making zirconia-alumina |
| 07/16/1991 | US5032378 Catalyst supports |
| 07/09/1991 | US5030601 Process for the production of sinterable zirconium oxide powder |
| 06/26/1991 | EP0434222A1 Ultra high purity metal fluorides and their preparation |
| 06/26/1991 | EP0433450A1 Method of obtaining complex oxides |
| 06/25/1991 | US5026527 Pressure release valve on receiving vessel controlled by means of signal from flow meter which measures flow rate of reaction products flowing from autoclave to receiver to maintain constant flow rate |
| 06/25/1991 | CA1285117C Submicronic stabilized zircon preparation process, from zirconium fluosulphate, and use of said stabilized zircon thus prepared in ceramic compounds |
| 06/18/1991 | US5024859 Method for applying an oxide barrier coating to a reinforcing fiber |
| 06/12/1991 | EP0431404A2 Formation of titanium, magnesium and zirconium calcium oxides |
| 06/11/1991 | US5023071 Emulsifying a mixture of water and non-polar organis solvent containing metal alkoxide; hydrolysis; precipitation |
| 06/11/1991 | US5023061 Chromatographic separation of zirconium isotopes with anhydrous readily recyclable eluents |
| 06/05/1991 | EP0330697A4 Preparation of abo 3? compounds from mixed metal aromatic coordination complexes |
| 06/05/1991 | CN1012725B Process for the manufacture of a powder of mixed metal oxides and mixed metal oxide powders |
| 05/29/1991 | CN1051713A Zirconium dioxide powder, method for production thereof, use thereof and sintered bodies prepared thereof |
| 05/28/1991 | CA1284419C Method of producing high purity zirconia powder from zircon powder |
| 05/23/1991 | DE4036386A1 Coating reinforcing fibre - with oxide barrier coating, used in ceramic matrix composite material |
| 05/22/1991 | EP0427938A1 Process for the preparation of Zirconium dioxide powder |
| 05/21/1991 | US5017534 Method for the fabrication of a ceramic material by hybrid chemical process and material obtained thereby |
| 05/21/1991 | CA2025318A1 Coated reinforcing fiber and method for applying an oxide barrier coating |
| 05/14/1991 | US5015373 High stability porous zirconium oxide spherules |
| 05/12/1991 | CA2029707A1 Zirconium dioxide powder, method for the production thereof, the use thereof and sintered bodies prepared therefrom |
| 05/02/1991 | EP0425252A1 Metal oxide porous ceramic membranes with small pore sizes |
| 04/30/1991 | US5011673 Zirconium oxide powder |
| 04/23/1991 | US5009878 Zirconium dioxide powder, processes for its preparation and its use for the production of sintered articles |
| 04/23/1991 | US5009866 Fused salt process for purifying zirconium and/or hafnium tetrachlorides |
| 04/23/1991 | US5009751 Process for separation of hafnium tetrachloride from zirconium tetrachloride |
| 04/16/1991 | US5008092 Homogeneous powders of yttrium-stabilized quadratic zirconia |
| 04/10/1991 | EP0421077A1 Zirconium dioxide powder, process for its preparation, its use and sintered bodies prepared therefrom |
| 04/10/1991 | EP0421076A1 Zirconium dioxide powder, process for its preparation, its use and sintered bodies prepared therefrom |
| 04/02/1991 | US5004711 Process of producing colloidal zirconia sols and powders using an ion exchange resin |
| 04/02/1991 | US5004710 Method for the chemical preparation of zirconia alloy powders and article |
| 03/31/1991 | CA2026523A1 Zirconium dioxide powder, processes for its preparation, its use and sintered articles produced therefrom |
| 03/31/1991 | CA2026521A1 Zirconium dioxide powder, processes for its preparation, its use and sintered articles produced therefrom |
| 03/26/1991 | US5002909 Mixed oxides of alumina and zirconia consisting essentially of spherical particles having a narrow granulometric distribution and process for their preparation |
| 03/26/1991 | US5002749 Process for the manufacture of zirconium oxide hydrate from granular crystallized zirconium oxide |
| 03/12/1991 | US4999323 Production of ceramic powders by emulsion precipitation processes and the products thereof |
| 03/12/1991 | US4999182 Heat treatment and roasting of zirconium and other metal salt; ceramics |
| 03/07/1991 | WO1991002697A1 Method of producing pulverized perovskite compound |
| 03/07/1991 | WO1990015020A3 High-temperature aerosol decomposition process and products produced |
| 03/06/1991 | EP0414695A1 Ceramic powder and a process for the preparation thereof. |
| 02/27/1991 | EP0414575A1 Stabilized zirconia solid electrolyte and processes for the preparation thereof |
| 02/27/1991 | EP0163739B1 Process for preparing fine particles of ba (zrx ti 1-x)o3-solid solution |
| 02/27/1991 | CN1049485A Process for production of composite of metal oxides, composite powders of metal oxides and ceramic materials |
| 02/20/1991 | EP0413033A1 Zirconia sol, preparation thereof, slurry for use in the production of porous ceramic, and porous ceramic produced from said slurry |
| 02/05/1991 | US4990474 Process for preparing a zirconium dioxide precursor |
| 01/23/1991 | EP0409319A1 Process for the preparation of a metal oxide composite, composite metal oxide powders and ceramic materials |
| 01/23/1991 | EP0409282A2 Zirconia sol and method for production thereof |
| 01/22/1991 | US4987012 Maintaining constant ph during alkaline hydrolysis of metal alkoxide in seeded dispersion |
| 01/21/1991 | CA2021549A1 Process for making a metallic oxide composite, metallic oxide composite powders and ceramic materials thereof |
| 01/15/1991 | US4985380 Method of making thin refractory flakes |
| 01/15/1991 | US4985379 Stabilized metallic oxides |
| 01/15/1991 | US4985229 Process for manufacturing fine zirconium oxide powder |
| 01/08/1991 | US4983374 Methods for forming titanium calcium oxide and zirconium calcium oxide |
| 01/08/1991 | US4983373 Process for the production of high purity zirconium tetrafluoride and other fluorides |
| 01/02/1991 | EP0405598A2 Process to control polymer distribution in antiperspirant salts |
| 01/01/1991 | US4981819 Phase transfer catalyst |
| 12/13/1990 | WO1990015020A2 High-temperature aerosol decomposition process and products produced |
| 12/12/1990 | EP0401999A2 Stabilized metal oxide powder compositions |
| 12/05/1990 | EP0400306A1 Zirconium dioxide powder, process for its preparation and its use in forming sintered bodies |
| 12/02/1990 | CA2017962A1 Zirconium dioxide powder, processes for its preparation and its use for the production of sintered articles |
| 11/28/1990 | CN1010580B Process for manufacture of zirconium ammonium sulfate compounds |
| 11/20/1990 | US4971933 Alloy, ceramic composites |
| 11/14/1990 | EP0397553A1 Microporous zirconia and process for its preparation |
| 11/14/1990 | CN1046879A Sintered zirconium oxide powder and the preparation thereof |
| 11/07/1990 | EP0395912A1 Sinterable zirconium oxide powder and process for its preparation |
| 11/06/1990 | US4968498 Hydrolysis of alcoholate in presence of acid or derivative |
| 11/06/1990 | CA1275783C Preparation of unagglomerated metal oxide particles with uniform particle size |
| 10/23/1990 | US4965056 Reacting leadnitrate, zirconium oxychloride, titanium and lanthanum chloride |
| 10/23/1990 | US4965055 Preparation of ultra-pure metal halides |
| 10/22/1990 | WO1990012755A1 Preparation of thin film ceramics by sol gel processing |
| 10/22/1990 | CA2065381A1 Preparation of thin film ceramics by sol gel processing |
| 10/10/1990 | EP0391448A2 Method for production of powder of fine inorganic particles |
| 10/10/1990 | EP0391447A2 Method for production of inorganic oxide particles |
| 10/09/1990 | US4961889 Process for producing inorganic fiber |
| 10/09/1990 | US4961835 Oxides of yttrium, silicon, zirconium; oxygen; chips; electrodes; nonelectrolytic ceramic |
| 10/04/1990 | WO1990011249A1 Method of obtaining complex oxides |
| 10/03/1990 | CN1045762A Process for producing sub-micron ceramic powders of perovskite compounds with controlled stoichiometry and particle size |