| Abstract: | A new type of water dispersible hybrid polymer has been developed comprising a mercapto functionalized poly(epoxy ester) core, onto which the shell, an acrylic chain, has been grafted. Synthesis and characterization of such a hybrid polymer are given in full detail. When applied to automotive primer/surfacer formulations, they exhibit high solids contents, good filling power, and good stone-chip resistance, both in the VDA and SAE tests as well as with a controlled acceleration stone thrower (CAST). |
