Patents

Propylene polymer fibers and yarns

March 30, 2004

1. Bulked continuous filament yarn consisting essentially of substantially continuous filaments and having a bulk level of about 2 to about 20%, denier of about 500 to about 3000, shrinkage of about 1 to about 15% and Plug Crush Recovery of at least 85%, wherein the filaments consist of crystalline polypropylene homopolymer having a melting point of about 168° C. or such crystalline polypropylene homopolymer having incorporated therein at least one additive that is a pigment, process aid, flame retardant, heat stabilizer, light stabilizer, antimicrobial agent, electrically conductive material, antistatic agent or stain resisting agent.

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