Abstract: Vinylized epoxy resins, such as vinyl ester resins, comprise polymerizable ethylenic unsaturation and an in situ polymerized polymer, such as a polyalkyl acrylate. The vinylized epoxy resins can form stable dispersions and are useful in thermoset applications.

Abstract: Vinylized epoxy resins, such as vinyl ester resins, comprise polymerizable ethylenic unsaturation and an in situ polymerized polymer, such as a polyalkyl acrylate. The vinylized epoxy resins can form stable dispersions and are useful in thermoset applications.

Abstract: Novel water-compatible compositions are those of at least one vinyl ester resin whose backbone is linear or substantially linear and consists essentially of at least one terminal olefinically unsaturated group and at least one terminal pyridinium group covalently bonded through the pyridinium nitrogen atom. These novel compositions are useful adhesive and coating compositions which find particular utility in cathodic electrodeposition. The compositions are prepared, for example, by reacting a linear or substantially linear epoxy resin with an unsaturated monocarboxylic acid and then with a pyridine compound in the presence of sufficient amount of a Bronsted acid and water to stabilize the pyridinium salt thus formed.

Abstract: High molecular weight epoxy resins containing hydrolyzed epoxy groups are prepared by reacting (A) a low molecular weight epoxy resin, and (B) a hydroxyl-containing compound in the presence of (C) a catalyst therefor and (D) an excess quantity of water and thereafter removing the excess water.