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:
Dec. 25, 2001
Filed:
Feb. 14, 2000
Applicant:
Inventor:
Theodore G. Karageorgiou, Arden, NC (US);
Assignee:
BASF Corporation, Mount Olive, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01D 5/16 ; D01D 5/253 ; D01D 5/34 ; D01F 8/04 ; D02G 3/02 ;
U.S. Cl.
CPC ...
D01D 5/16 ; D01D 5/253 ; D01D 5/34 ; D01F 8/04 ; D02G 3/02 ;
Abstract
Processes whereby sheath/core bicomponent fibers are melt-spun at relatively high spinning rates. In particularly preferred forms, polyamide sheath/core bicomponent fibers are made at melt-spinning speeds of about 4000 meters per minute or greater, and more preferably about 4500 meters per minute or greater. Most preferably, the sheath is formed of nylon 6,12 while the core is formed of nylon 6.