Polymer alloys including two or more components with differing melting points, filaments made thereof, and fabrics made therefrom

The present invention concerns a polymer alloy, filaments made thereof, and fabrics made therefrom, which alloy is comprised of two compatible polymers having sufficient interfacial adhesion so as to remain bonded together as an extrudate, characterized in that one of the two component polymers has a higher melting point temperature than the second. Industrial fabrics in which at least a portion of the component filaments are formed from the polymer alloy exhibit reduced susceptibility to curl along their longitudinal edges. A synthetic filament formed from first and second compatible polymers. The first polymer has a first, higher melting temperature melting point and the second polymer has a second, lower temperature melting point that is at least 5° C. lower. The polymers are mixed and extruded to form a filament that has two distinct melting points so that the filament remains stable and can be heat set at a temperature less than the first high temperature. A woven textile is also provided which incorporates the filaments in at least some of the machine direction and cross direction yarns.