l 2012
MY
7521. BOIDEGRADABLE POLYURETHANE AND POLYURETHANE UREAS
Abstract
THIS INVENTION RELATES TO BIOCOMPATIBLE, BIODEGRADABLE THERMOPLASTIC POLYURETHANE OR POLYURETHANE/UREAS COMPRISING ISOCYANATE, POLYOL AND A CONVENTIONAL CHAIN EXTENDER AND/OR A CHAIN EXTENDER HAVING A HYDROLYSABLE...