POLYMER COMPOSITIONS, AQUEOUS DISPERSIONS AND AQUEOUS PAINT COMPOSITIONS BY USE THEREOF AS EMULSIFIERS

摘要

The present invention provides a polymer composite dispersed in water containing primary and/or secondary polyamines, wherein the oligomer is synthesized by allowing to react (a) a diol compound with molecular weight of 100 to 5000 and having terminal hydroxyl groups, (b) a diisocyanate compound, (c) a compound having at least one active hydrogen and zwitterionic groups in the molecule and (d) an ethylenically unsaturated monomer with active hydrogens in the molecule with each other under the reaction conditions enriched in isocyanates; an aqueous dispersion which can be obtained by polymerizing monomers by use thereof as an emulsifying agent; and an aqueous paint composite comprising the aqueous dispersion. The polymer composite has a high emulsion stability and the paint composite, especially the metallic paint, obtained therefrom exhibits an excellent characteristic in coated films and good coating performance.