Fibers and oriented films of polypropylene higher .alpha.-olefin

Details Fibers and oriented films of polypropylene higher .alpha.-olefin Fibers and oriented films of polypropylene higher .alpha.-olefin

1994-05-24

1996-11-05

Ryan, Patrick J.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

428395, 526124, 526352, 526194, 526212, 526901, 526904, 526138, 5261258, 502103, 502104, 502113, 502118, D02G 300

Patent

active

055716199

ABSTRACT:
A propylene, .alpha.-olefin copolymer, where the .alpha.-olefin has 5 or more carbon atoms made with a metallocene catalyst system provides substantially higher cold flow resistance from when the propylene copolymer is made with an .alpha.-olefin having 4 or less carbon atoms. Other properties such as ultimate tensile strength and impact strength are substantially higher as well. Such polymers can be used to advantage in fibers, fabrics, and oriented films.

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