the polymers and copolymers prepared mechanically or in situ may also be used examples of monomers that can be employed in the invention include ethylene propylene butene 1 pentene 1 4 methyl pentene 1 hexene 1 and octene 1 alone or in admixture or in sequential polymerization systems examples of preferred thermoplastic poly alpha olefin polymers include polyethylene polypropylene propylene ethylene copolymers polybutylene and blends thereof polypropylene is particularly preferred for use in the invention processes for preparing the polymers useful in this invention are well known and the invention is not limited to a polymer made with a particular catalyst or process in accordance with the present invention a molten thermoplastic polymer fiber can be extruded through a spinneret to form a plurality of filaments typically around 80 filaments each filament typically having a delta shaped cross section the filaments are cooled typically by passing through an air quenching apparatus maintained at or slightly below room temperature the filaments are then bundled and directed across guides or kiss rolls whereupon they are treated with a molten spin finish of this invention after receiving the spin finish treatment the filaments are generally stretched stretching may be accomplished over a number of godets or pull rolls that.