Polyamides from carboxystearic acid

Abstract

AND SUMMARYA series of polyamide and copolyamide resins were prepared from carboxystearic acid or methyl carboxystearate, with ethylenediamine, hexamethylenediamine, adipic acid, or caprolactam as coreactants. None of the product formulations appeared suitable for use in hot melt adhesives. More promising were the liquid, reactive polyamides made from carboxystearic acid and polyamines. These products gave excellent adhesion value in scouting tests when used as one component in 2-component epoxy adhesives and coatings. In other applications, C-19 polyamides had enhanced solubility and low melting characteristics to make them attractive as modifiers.

Isolation of the 9‐ and 10‐isomers of carboxystearic acid and their polyamidation with hexamethylenediamine

“…We wish to report the isolation and some of the properties shown by the individual isomers, their nylon salts, and their polyamides. Poly(carboxystearamides) have potential commercial value (11).…”