Plastic and nonmetallic article shaping or treating: processes – Reactive gas or vapor treatment of work – Work is organic material
Patent
1997-12-29
1999-03-16
Tentoni, Leo B.
Plastic and nonmetallic article shaping or treating: processes
Reactive gas or vapor treatment of work
Work is organic material
264143, 26417215, 2642108, 26421114, 26421117, 264237, D01F 110, D01F 606, D01F 806, D01F 1104
Patent
active
058825622
ABSTRACT:
Process of producing a polypropylene containing fiber and the resulting fiber and non-woven articles. The process involves the extruding of polypropylene containing material having a broad molecular weight distribution to form a hot extrudate having a surface, and quenching the hot extrudate in an oxidative atmosphere so as to effect oxidative chain scission degradation of the surface to obtain a fiber having a higher average melt flow rate as compared to an average melt flow rate of an inner, non-degraded portion thereof, and containing at least 7 percent of molecules having a molecular weight greater than 5.times.10.sup.5.
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Fiberco Inc.
Tentoni Leo B.
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