. . . "Examples of such ionomers include without limitation styrenated ethylene-acrylic acid copolymer or its salts, sulfonated polyesters and their salts and copolymers, polyacrylic acids and their salts and copolymers, hydroxy/carboxylated vinylacetate-ethylene terpolymers, functionalized acrylics, polyesters, latex, gelatin, soy protein, casein and other proteins, alginate, carrageenan, starch derivat" . . .