Water-dissipatable alkyd resins and coatings prepared therefrom

A coating composition comprising:

• (A) about 10 to 50 weight percent of a water-dissipatable alkyd resin comprising the moieties of reaction products:
• (a) about 30 to 80 weight percent of a monobasic fatty acid, fatty ester or naturally occurring, partially saponified oil,
• (b) about 10 to 40 weight percent of a glycol or polyol,
• (c) about 10 to 40 weight percent of a polycarboxylic acid, and
• (d) 2 to 10 weight percent of a sulfomonomer adduct containing at least one sulfomonomer group, wherein the weight percent is based on the weight of the sulfomonomer group in said sulfomonomer adduct,
• wherein, when the weight percentages of (a) through (d) are converted to their respective moles and equivalents, the total number of moles, M.sub.t, divided by the total equivalents of acid functionality, E.sub.a, is between 1.0 and 1.5 (K value);
• and the total equivalents of hydroxyl functionality, E.sub.OH, divided by the total equivalents of acid functionality, E.sub.a, is between 1.0 and 2.0 (R value), and
• wherein said sulfomonomer adduct has been prepared by reacting a sulfomonomer containing at least one sulfonate group with a polyol to produce a polyol sulfomonomer adduct,
• (B) about 10 to 50 weight percent water,
• (C) about 0 to 20 weight percent of a water soluble organic solvent, and
• (D) about 0 to 30 weight percent of a crosslinking agent.