improvements relating to nanodispersions

• Main Authors: FOSTER ALISON JAYNE, ANGUS DORIS, WANG DONG, DUNCALF DAVID JOHN, ELPHICK ANDREW JAMES, LONG JAMES, RANNARD STEVEN PAUL
• Format: Patent
• Language: Chinese; English
• Published: 19.09.2012
• Subjects: ADHESIVES; AGRICULTURE; ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES; ANIMAL HUSBANDRY; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; CANDLES; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; DETERGENT COMPOSITIONS; DETERGENTS; DYES; FATTY ACIDS THEREFROM; FISHING; FOODS OR FOODSTUFFS; FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J; FORESTRY; HUMAN NECESSITIES; HUNTING; HYGIENE; LAKES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MEDICAL OR VETERINARY SCIENCE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MORDANTS; NANOTECHNOLOGY; NATURAL RESINS; ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; PAINTS; PERFORMING OPERATIONS; PEST REPELLANTS OR ATTRACTANTS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PLANT GROWTH REGULATORS; POLISHES; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL; RECOVERY OF GLYCEROL; RESIN SOAPS; SOAP OR SOAP-MAKING; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT; THEIR RELEVANT APPARATUS; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES; TRANSPORTING; TRAPPING; USE OF SINGLE SUBSTANCES AS DETERGENTS

The invention provides process for making contra-soluble nano-dispersions of at most sparingly-soluble materials in a soluble carrier material comprising the steps of: (i) providing a single phase mixture of: a) a solvent or a mixture of miscible solvents, b) at least one carrier material soluble in solvent (a), said carrier material being also contra- soluble to payload material (c) and solid at ambient temperature, c) at least one a payload material which is soluble in solvent (a), and, (ii) drying the mixture to remove solvent (a) and thereby obtain the carrier material (b) in solid form with payload (c) dispersed therein as nanoparticles.