FREMGANGSMAADE TIL FREMSTILLING AF EN VANDIG EMULSION ELLER DISPERSION AF ET DELVIS VANDOPLOESELIGT ORGANISK MATERIALE OG EVENTUEL VIDERE OMDANNELSE AF DEN FREMSTILLEDE DISPERSION ELLER EMULSION TIL EN POLYMERDISPERSION, NAAR DET DELVIST VANDOPLOESELIGE MATERIALE ER EN POLYMERISERBAR MONOMER SAMT ANVENDELSE AF MONODISPERSE POLYMERDISPERSIONER

• Main Author: UGELSTAD, JOHN
• Format: Patent
• Language: Danish
• Published: 05.08.1991
• Edition: 4
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

An aqueous emulsion or dispersion of a partly water-soluble material is prepared in a two step process, a dispersion of polymer particles containing one or more materials having a very low solubility in water is prepared in the first step and a partly water-soluble material is added in the second step which diffuses into the polymer particles obtained in the first step. Where the partly water-soluble material is a polymerizable monomer, polymerization may be effected after diffusion of the monomer into the polymer particles.