AbstractOxazoline polyester resins were prepared by reaction of oxazoline diols from linseed acids and tris (hydroxymethyl) aminomethane with each of five dibasic acids (adipic, dimer, fumaric, itaconic and maleic). Certain resins were dissolved in isopropyl alcohol to give solutions infinitely water dilutable when the free carboxyl was neutralized with an amine. Film properties of resins cast on steel plates were investigated. Drying characteristics, hardness, color stability and solvent resistance of some of these films equaled or excelled those of a commercial soy alkyd resin, although their initial color was darker. The resins prepared from itaconic and maleic acids have potential value as water‐solubilizable coating vehicles.