| 摘要 |
Compounding and extruding a composition, comprising 60-95 weight-% polypropylene, 0.1-10 weight-% maleated polypropylene, and 5-40 weight-% nylon or polyester, through a spinneret at a temperature in the range of 235-285° C., and drawing the resulting filament. Drawing is carried out at a draw ratio substantially lower than the draw ratio that would be necessary to obtain the same elongation with 100% polypropylene. Color pigments may be included in the composition which is compounded and extruded. In accordance with this invention, high proportions of polypropylene may be blended with nylon or polyester without detracting substantially from the good touch and luster attributable to the latter polymers. Also disclosed are carpeting and rugs in which the pile is made up of filaments produced by a process of this invention. In the manufacture of such carpeting or rugs, individual filaments can be dyed and then assembled into a rug, or the composite material can be manufactured and then the composite material piece can be dyed. |
