Aqueous synthetic resin dispersion of an ionic resin, a blocked isocyanate and an ethylenically unsaturated monomer
AssigneeHoechst Aktiengesellschaft
InventorsMichael Hoenel, Achim Voelker, Gerd Walz, Peter Ziegler
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Abstract
Aqueous synthetic resin dispersions comprising A) an ionic resin, preferably a cationic resin, B) a blocked polyisocyanate and C) a polymer of at least one ethylenically unsaturated monomer which can be polymerized by free-radical polymerization. These synthetic resin dispersions are used as binders in electrodeposition coating baths.
Claims14
A process for the preparation of an aqueous synthetic resin dispersion comprising A) an ionic resin, B) a blocked polyisocyanate, and C) a polymer of at least one ethylenically unsaturated monomer which can be polymerized by a free-radical polymerization, wherein at least one member of the group consisting of ionic resin A) and the blocked polyisocyanate, B) is prepared in the presence of one or more ethylenically unsaturated monomers as a solvent, and wherein the polymer C) is prepared by polymerization in an aqueous dispersion of one or more ethylenically unsaturated monomers in the presence of the ionic resin A) and the blocked polyisocyanate B).
Dependencies are inferred from the claim text.