FOERFARANDE FOER FRAMSTAELLNING AV EN VATTENEMULSION ELLER -DISPERSION AV ETT DELVIS VATTENLOESLIGT MATERIAL OCH EVENTUELLT VIDARE OMVANDLING AV DEN FRAMSTAELLDA DISPERSIONEN ELLER EMULSIONEN TILL EN POLYMERDISPERSION DAO DET DELVIS VATTENLOESLIGA MATERIALET AER EN POLYMERISERBAR MONOMER SAMT ANVAENDNING AV SAO FRAMSTAELLDA MONODISPERSA POLYMERPARTIKLAR SOM TOING I XEROGRAFI

• Main Author: UGELSTAD JOHN
• Format: Patent
• Language: Finnish
• Published: 10.09.1985
• 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.