Urethane acrylic hybrid polymer dispersion with robust dry/wet adhesion and basecoats prepared therefrom

A urethane acrylic hybrid polymer dispersion, comprising:

• a. a polyurethane dispersion prepolymer comprising (a) at least one polyester diol;
• and (b) at least one diisocyanate selected from an aliphatic diisocyanate or cycloaliphatic diisocyanate;
• (c) at least one hydroxy functional carboxylic acid;
• and (d) optionally one low-molecular-weight polyol having a molecular weight between 60 and 200;
• and
• b. an acrylic part comprising at least one monomer having polymerizable functionality selected from the group consisting of a (meth) acrylate, allyl, and (meth)acrylamide, wherein said monomer contains at least one pendant functional group selected from the group consisting of ureido, morpholino, phosphate, and any combination thereof, wherein the acrylic part is present in the range of 10 wt. % to 90 wt. % based on total weight of the hybrid polymer dispersion;
• wherein the urethane acrylic hybrid polymer dispersion is formed by combining the polyurethane dispersion prepolymer and the acrylic part.