Abstract: An adherent coating composition and method has a resin composition that is the polymerization reaction product of one or more polyhydric alcohols and two polybasic carboxylic acids and salt forming compounds of phosphorus. The carboxylic acid is comprised of at least adipic acid and phthalic anhydride in a mole ratio in the range of about 0.6:1 to about 3:1, and the phosphorus compound is present in the range of about 1 to about 5 weight percent of the resin composition. The resin composition can have a weight average molecular weight in the range of about 1100 to about 4000 and an acid value in the range of about 5 to about 40. Optionally, the resin can have up to about 35 weight percent of tetrahydrophthlic anhydride. The resin composition is ungelled and curable with crosslinking agents in an amount of about 30 to about 90 weight percent of resin to about 10 to about 45 weight percent of the crosslinking agent.

Abstract: A coating composition contains;A. an ungelled Michael adduct formed by reacting, under conditions sufficient to form a Michael adduct,(a) a material containing one or more primary and/or secondary amino groups and at least two hydroxyl groups;(b) a material containing at least two alpha,beta-ethylenically unsaturated moieties; with the proviso that the reactants (a) and (b) are selected such that the resultant Michael adduct contains hydroxyl functionality; andB. a curing agent adapted to crosslink with the hydroxyl functionality present on the Michael adduct; said adduct being stable under the curing conditions for the coating composition.The aforedescribed coating compositions are particularly useful as anti-chip primers.