Precursors for active materials, active materials using such precursors, and method for producing said active materials

• Main Authors: TAKAI, OSAMU, SUGIMURA, HIROYUKI, GOMEZ-VEGA, JOSE MANUAL
• Format: Patent
• Language: English; French; German
• Published: 11.12.2002
• Edition: 7
• Subjects: APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE; ARTIFICIAL STONE; BANDAGES, DRESSINGS OR ABSORBENT PADS; CEMENTS; CERAMICS; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; COMPOUNDS THEREOF; CONCRETE; DENTISTRY; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; DIFFUSION TREATMENT OF METALLIC MATERIAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; HUMAN NECESSITIES; HYGIENE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; INORGANIC CHEMISTRY; LIME, MAGNESIA; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METALLURGY; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; NON-METALLIC ELEMENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; PROSTHESES; REFRACTORIES; SLAG; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF NATURAL STONE; TREATMENT OR PROTECTION OF EYES OR EARS

A precursor for an active material, said precursor comprising an inorganic oxide and having hydroxide groups on a surface thereof, said hydroxide group being in such an amount as to precipitate an inorganic component in a reactive solution containing said inorganic component when the precursor is immersed in the solution.