Coated nanofiber webs

Details Coated nanofiber webs Coated nanofiber webs

2007-11-06

2007-11-06

Theisen, Mary Lynn (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

With liberating or forming of particles

C264S122000, C156S167000

Reexamination Certificate

active

10877463

ABSTRACT:
The present invention is directed to a method of forming nonwoven webs comprising coated fibers. The method of forming the nonwoven web generally comprises the steps of forming fibers from a melt fibrillation process, forming at least one fluid stream containing a coating substance, applying the coating substance onto the surface of the fiber, and depositing the coated fibers on a surface to form a web. Typically, the fibers are coated in flight. Preferably, the melt fibrillation process to form the fibers is a melt film fibrillation process. A melt film fibrillation process generally includes the steps of providing a polymeric melt, utilizing a central fluid stream to form an elongated hollow polymeric film tube, and using air to form multiple nanofibers from the hollow tube. The nonwoven web may comprise a layer having a significant number of nanofibers with diameters less than one micron. The layer may comprise two or more pluralities of fiber diameter distributions wherein at least one plurality has an average fiber diameter of less than about one micron.

REFERENCES:
patent: 4100324 (1978-07-01), Anderson et al.
patent: 4536361 (1985-08-01), Torobin
patent: 4753843 (1988-06-01), Cook et al.
patent: 4784892 (1988-11-01), Storey et al.
patent: 4818464 (1989-04-01), Lau
patent: 4937020 (1990-06-01), Wagner et al.
patent: 5114631 (1992-05-01), Nyssen et al.
patent: 5260003 (1993-11-01), Nyssen et al.
patent: 5518801 (1996-05-01), Chappell et al.
patent: 5679379 (1997-10-01), Fabbricante et al.
patent: 5935883 (1999-08-01), Pike
patent: 6114017 (2000-09-01), Fabbricante et al.
patent: 6183670 (2001-02-01), Torobin et al.
patent: 6269513 (2001-08-01), Torobin
patent: 6382526 (2002-05-01), Reneker et al.
patent: 6395046 (2002-05-01), Emig et al.
patent: 6494974 (2002-12-01), Riddell
patent: 6520425 (2003-02-01), Reneker
patent: 6695992 (2004-02-01), Reneker
patent: 2002/0117782 (2002-08-01), Haynes et al.
patent: 2005/0053782 (2005-03-01), Sen et al.
patent: 3249207 (1991-11-01), None
patent: 2668963 (1997-10-01), None
patent: WO 00/71797 (2000-11-01), None
patent: WO 01/97731 (2001-12-01), None
patent: WO 03/043809 (2003-05-01), None
patent: WO 2004/020722 (2004-03-01), None
patent: WO 2004/020722 (2004-03-01), None

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