THERMOPLASTIC POLYURETHANE ELASTOMER COMPOSITION, EXTRUSION MATERIAL, METHOD OF EXTRUSION AND EXTRUDATE

摘要

PURPOSE:To obtain a polyurethane elastomer composition excellent in extrudability. CONSTITUTION:This composition comprises a polyether thermoplastic polyurethane elastomer comprising a polyoxymethylene glycol having a number-average molecular weight of 1500-2500, a chain extender and an organic diisocyanate and a lubricant. This composition can provide precision extrudates such as hoses, films, sheets, wire coatings and contour extrudates.