Schmelzgeblasene Polyarylensulfidmikrofasern und Verfahren zu ihrer Herstellung

Melt-blown microfiber webs are prepared from polyarylene sulfide polymers, particularly polyphenylene sulfide. A small amount of a phosphite or phosphonite compound is added to the extruder feedstock. The additive essentially eliminates spurious polymer particle formation at the extruder die opening...

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Bibliographische Detailangaben
Hauptverfasser:	AUERBACH, ANDREW B, HARMON, WARREN S
Format:	Patent
Sprache:	ger
Schlagworte:	APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS BRAIDING CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS COTTON-WOOL FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS KNITTING LACE-MAKING MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS NATURAL OR ARTIFICIAL THREADS OR FIBRES NON-WOVEN FABRICS SPINNING TEXTILES TRIMMINGS WADDING
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Beschreibung
Zusammenfassung:	Melt-blown microfiber webs are prepared from polyarylene sulfide polymers, particularly polyphenylene sulfide. A small amount of a phosphite or phosphonite compound is added to the extruder feedstock. The additive essentially eliminates spurious polymer particle formation at the extruder die openings, even over sustained production periods. The polyarylene sulfide microfiber webs so produced are thus essentially free of spurious particulates, and the web defects which may be caused by such particulates.