Novel Thermoplastic Polyurethanes for Adhesives and Sealants
Thermoplastic polyurethanes are formed by linear polymeric chains of segmented structure. Development of soft grades of TPUs has been reported among the latest trends in the TPU market. This article focuses on a study on the development of these formulations.
Hydroxyl-terminated polybutadiene diols are now available that can be employed to prepare novel soft TPUs. These hydrophobic elastomers are suitable for adhesive and sealant applications requiring excellent hydrolytic stability, low-temperature flexibility, and outstanding resistance to aqueous acids and bases.