FORFARINGSSETT FOR FRAMSTELLNING AV AKRYLMIKROGELHARTS

摘要

The invention relates to a process for an acrylic microgel resin. The process according to the invention comprises the preparation of an aqueous microgel emulsion of an acrylic resin that is cross-linked with a polyfunctional cross-linking agent. This is followed by the removal of water from the emulsion by coagulation and/or azeotropic distillation with an organic solvent in which the microgel is insoluble and which forms an azeotropic mixture with water. Finally, the resulting dehydrated microgel is incorporated in an acrylic resin that is prepared by solution polymerization in an organic solvent.