Method for preparing particles comprising metal oxide coating and particles with metal oxide coating

Particles comprising a particulate matter coated by a metal oxide layer wherein: (i) said metal oxide layer has a width of 0.1 -10 micron; and (ii) said particles are characterized in that when tested in a Dissolution Tester using Paddle Method in a medium, typically an organic-based solvent such as...

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Bibliographische Detailangaben
Hauptverfasser:	BAR-SIMANTOV, HAIM, SOMMER, WILLIAM T, BILMAN, NISSIM, TOLEDANO, OFER, ABU-REZIQ, RAED, SHAPIRO, LEORA, SRIADIBHATLA, SRIKAN
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES AGRICULTURE ANIMAL HUSBANDRY BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY DYES FISHING FORESTRY HUMAN NECESSITIES HUNTING HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PERFORMING OPERATIONS PEST REPELLANTS OR ATTRACTANTS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PLANT GROWTH REGULATORS POLISHES PREPARATION OF CARBON BLACK PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS THEIR RELEVANT APPARATUS TRANSPORTING TRAPPING TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES
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Beschreibung
Zusammenfassung:	Particles comprising a particulate matter coated by a metal oxide layer wherein: (i) said metal oxide layer has a width of 0.1 -10 micron; and (ii) said particles are characterized in that when tested in a Dissolution Tester using Paddle Method in a medium, typically an organic-based solvent such as acetonitrile, iso propyl miristate, ethanol or methanol, in which said particulate matter is soluble, and a dissolution volume in which the concentration of the particulate matter is -lower than the solubility of the particulate matter, the time for releasing 50% w/w of the particulate matter from said particles is at least two-fold higher compared to the dissolution of the free form of the particulate matter having substantially the same particle size diameter as the particulate matter in said particles.