Fiber-reinforced thermoplastic molding compositions using a modified thermoplastic polyurethane

摘要: Thermoplastic molding compositions and articles comprise immiscible thermoplastic polymer components reinforcing fibers. The the fibers are blended together under high shear conditions. composition generally contains at least two phases has an extremely smooth fiber-free surface. Generally, other very good physical properties obtained such as heat distortion temperatures, tensile modulus, flex like also good. A desired blend of is polyurethane modified polyethylene terephthalate with glass molded copolyester polymer, preferably polyurethane, produces having surprisingly superior impact strength. In addition, if by aromatic polyester polyol, a terephthalate, no necessary to produce greatly improved processability.