PERFLUORPOLYÄTHER ENTHALTENDE MIKROEMULSIONEN

• Main Authors: VISCA, MARIO, CHITTOFRATI, ALBA
• Format: Patent
• Language: German
• Published: 15.10.1999
• Edition: 6
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES; CANDLES; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DETERGENT COMPOSITIONS; DETERGENTS; FATTY ACIDS THEREFROM; FUELS; GENERAL PROCESSES OF COMPOUNDING; HUMAN NECESSITIES; HYGIENE; INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS; LUBRICANTS; LUBRICATING COMPOSITIONS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MEDICAL OR VETERINARY SCIENCE; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PEAT; PERFORMING OPERATIONS; PETROLEUM, GAS OR COKE INDUSTRIES; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; RECOVERY OF GLYCEROL; RESIN SOAPS; SOAP OR SOAP-MAKING; TECHNICAL GASES CONTAINING CARBON MONOXIDE; THEIR PREPARATION OR CHEMICAL WORKING-UP; THEIR RELEVANT APPARATUS; TRANSPORTING; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION; USE OF SINGLE SUBSTANCES AS DETERGENTS; WORKING-UP

Microemulsions based on perfluoropolyethers, comprising: an aqueous medium, a perfluoropolyether having a mean molecular weight of from 400 to 10 000 and perfluoroalkyl end groups; a fluorinated surfactant; and, optionally also a short-chain hydrogenated alcohol or a fluoroalkanol or a water-soluble salt, and microemulsion being permanently stable within a certain temperature range, in which they are obtainable by simply mixing of the components.