High-strength meltblown polyester webs

Details High-strength meltblown polyester webs High-strength meltblown polyester webs

2006-03-31

2008-12-23

Salvatore, Lynda (Department: 1794)

Fabric (woven, knitted, or nonwoven textile or cloth, etc.)

Nonwoven fabric

Melt-blown nonwoven fabric

C442S398000, C428S296700

Reexamination Certificate

active

07468335

ABSTRACT:
A meltblown web of polymeric polyester fibers, where the polyester polymer includes an aromatic dicarboxylic acid, a butanediol, and at least one additional branched or cycloaliphatic diol compound. The webs of the invention achieve high tensile strength values, and are particularly suitable for use as filter media.

REFERENCES:
patent: 4211689 (1980-07-01), Borman
patent: 4295652 (1981-10-01), Saito et al.
patent: 4307002 (1981-12-01), Wagner et al.
patent: 4415727 (1983-11-01), Toga et al.
patent: 5324612 (1994-06-01), Maeda et al.
patent: 5916677 (1999-06-01), Chen et al.
patent: 6414085 (2002-07-01), Karas et al.
patent: 2005/0154114 (2005-07-01), Hale
patent: 934889 (1955-11-01), None
patent: 847592 (1960-09-01), None

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