This paper details the use of isophthalic acid and trimellitic anhydride for the design and production of water reducible alkyd coatings. The performance of these systems is equal to or better than conventional solvent based systems. The use of special processing, compounding or application equipment is not required for the production of these coatings, however, the raw materials must be carefully selected to ensure optimum performance. Both water reducible alkyds and water reducible acrylated alkyds for air drying and force cured applications will be discussed. Coatings manufacturers in the United States have commercialized these systems for applications varying from air dry implement enamels to interior can coatings.
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