Jack M Chan

20030158365, Aug 21, 2003

Jan 9, 2002

10/043738

Wolfgang Brauer - Leverkusen, DE
Herbert Heidingsfeld - Frechen, DE
Hans-Georg Hoppe - Leichlingen, DE
Wolfgang Kaufhold - Koln, DE
Bernhard Schulte - Krefeld, DE
Jack Chan - Mission Viejo CA, US
Steven Manning - Imperial PA, US
Nicholas Nardo - Weirton WV, US

C08G018/00

528/044000

A continuous process for the preparation of a thermoplastic polyurethane elastomer is disclosed. The process is carried out at 130 to 250 C. and comprises reacting at least one polyether diol with at least one organic diisocyanate and 1,4-di-(2,2′-hydroxyethyl)-hydroquinone, in the presence of tin dioctoate as a catalyst. The resulting thermoplastic polyurethane has a glass transition temperature (T) below 50 C. The inventive thermoplastic polyurethane is suitable for making injection molded or extruded articles.