Industrial utilization of C 21 dicarboxylic acid

Interest in polyfunctional materials has increased steadily in recent years as polymer systems have become more prevalent in our society. One of the more unique and versatile of these products has only recently become commercially available, 5(6)‐carboxy‐4‐hexyl‐2‐cyclohexene‐1‐octanoic acid. This C 21 dicarboxylic acid not only has the expected ability to be incorporated into polymers for modification of the system, but it also has very unique surfactant properties. The sodium, potassium, and ammonium salts of this C 21 dicarboxylic acid are unusually soluble in water, and the water solutions maintain relatively low viscosities even at high concentrations. The mono substituted derivatives of the C 21 dicarboxylic acid are prepared easily, and they provide unique properties for a variety of end uses. This paper illustrates the potential industrial applications for the dibasic acid and some of its derivatives in ink resins; adhesives; coatings; lubricants; plasticizers; corrosion inhibitors; synthetic coolants; emulsions; temporary coatings; floor polishes; and industrial, household, and institutional cleaners.