Extruded Polyurethane(TPU) Tube [Material Description]            Thermoplastic Polyurethane(TPU), is an (AB)n type linear polymeric chains in block-structures. A is a polyester or polyether with molecular weight (1000-6000), B is a diol containing 2-12 straight chain carbon atoms. The chemical structure of AB segments is linked by diisocyanates, usually which is MDI. The currently available TPUs can be divided mainly in two groups: polyester-based TPUs and polyether-based TPUs. TPU is white ruleless spherical or cylindrical particles with relative density of from 60A to 90D.The relative density of polyether-based TPUs is smaller than that of the polyester-based TPUs.   [Properties]                  Excellent wear resistance                  Excellent elasticity and ductility, outstanding carrying capability, impact resistance & shock absorption                  Outstanding low temperature performance: TPU has very low glass transition temperature; it has good elasticity, flexibility and other excellent physical properties.                  Wide hardness range:    60A-55D                Excellent biocompatibility   [Application]                  IV catheters, catheter sheaths   [Sizes]                  inner diameter: 0.40mm-10.00mm                  wall thickness: 0.20mm-3.00mm   [Grade]                  USP Class VI, Food & Beverage Grade, Industrial grade                  With 20-40% Baso4 developing agent   [Production Environment]                 Standard Class 100,000 Cleanroom