Polyurethane-65 is a complex urethane copolymer made by reacting Isophorone Diisocyanate (IPDI) with a combination of dimethylolpropionic acid (DMPA) and a copolymer composed of Neopentyl Glycol and Adipic Acid. The resulting polymer is chain extended with ethylene diamine and neutralized with trimethylamine

Reviewed by CIR: Final Report: Safety Assessment of Polyurethanes as Used as Cosmetics

출처: 미국 CIR 안전성 평가