The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 16, 1999
Filed:
Dec. 29, 1997
Applicant:
Inventor:
Randall Earl Kozulla, Social Circle, GA (US);
Assignee:
Fiberco, Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01F / ; D01F / ; D01F / ; D01F / ;
U.S. Cl.
CPC ...
264 83 ; 264143 ; 26417215 ; 2642108 ; 26421114 ; 26421117 ; 264237 ;
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.