Bis-Ethylhexyl Poly(Caprolactone/Pentaerythritol)/IPDI Copolymer is a urethane polymer formed by a multi-step process. First, a polyester is made by the reaction of Epsilon-Caprolactone with Pentaerythritol, which is subsequently reacted with Isophorone Diisocyanate (IPDI). The resulting polymer is end-capped with 2-Ethylhexanol.