Pamolyn™ 300 fatty acid is a conjugated linoleic acid and linoleic acid-rich blend derived wholly from a tall oil fatty acid source. The conjugated linoleic component is produced synthetically by an Eastman process that isomerizes 9, 12-nonconjugated linoleic acid to the 9, 11- and 10, 12-conjugated forms, and controls the ratio of cis-trans to trans-trans isomers. Outstanding for low odor, pale color, and color stability, Pamolyn™ 300 fatty acid contains 38 to 42% conjugated diene fatty acids. Compared with natural linoleic acids of similar linoleic acid content, it is considerably more reactive. In the production of protective coating resins, it contributes fast bodying, and in applications of such coatings, the films have excellent surface and through dry. Uses include production of epoxy resin esters; modifiers of styrenated, vinylated, and methacrylated alkyds; chemical intermediates for reactions involving conjugated unsaturation; and applications wherever dehydrated castor oil and/or fatty acids are used.