Patent Number: 6,166,166

Title: Composition and process for preparation of thermoplastic polyurethanes (TPU based on a polybutadiene soft segment)

Abstract: A process for making a thermoplastic polyurethane material comprising the steps of casting an NCO-terminated prepolymer with 1,4-butanediol to form a casting composition; extruding the casting composition to form at least one strand of a polyurethane elastomer; pelletizing the at least one strand of said polyurethane elastomer to form at least one pellet; and processing the at least one pellet to form a thermoplastic article.

Inventors: Taylor; Ronald P. (Moon Township, PA), Chan; Jack C. (Coraopolis, PA), Haider; Karl W. (McKees Rocks, PA), Jonsson; E. Haakan (Cologne, DE), Franz; Uli W. (Moon Township, PA), Peters; Mark A. (Moon Township, PA)

Assignee: Bayer Corporation

International Classification: C08G 18/08 (20060101); C08G 18/10 (20060101); C08G 18/62 (20060101); C08G 18/00 (20060101); C08G 018/62 (); C08G 018/10 (); C08G 018/32 ()

Expiration Date: 12/26/2017