POLYMER ALLOY CHIP COMPRISING POLYAMIDE, AND POLYMER ALLOY FIBER AND SUPEREXTRAFINE FIBER AND METHOD FOR PRODUCING THEM

PROBLEM TO BE SOLVED: To provide a polymer alloy chip constituted of sea-island structure capable of stably producing superextrafine polyamide fibers in the form ranging from a microfiber to a nanofiber with a length of at least 0.2-200 mm in the longitudinal direction, and to provide methods for pr...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	TOMIOKA KAZUHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR LAUNDERING MAKING GRANULES OR PREFORMS METALLURGY NATURAL OR ARTIFICIAL THREADS OR FIBRES ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS SPINNING TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING TREATMENT OF TEXTILES OR THE LIKE TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a polymer alloy chip constituted of sea-island structure capable of stably producing superextrafine polyamide fibers in the form ranging from a microfiber to a nanofiber with a length of at least 0.2-200 mm in the longitudinal direction, and to provide methods for producing a polymer alloy fiber from the chip and the superextrafine polyamide fiber, respectively. SOLUTION: The polymer alloy fiber 4 of sea-island structure is composed of at least two component polymers. In the polymer alloy fiber 4, the sea component 3 is based on a stereocomplex polylactic acid, while the island component 2 is based on a polyamide; wherein the polymer viscosity of the island component 2 is 50-450 Pa. s higher than that of the sea component 3 at 190-260°C, the average fiber diameter of the island component 2 is 0.1-20 μm, and the fiber diameter variation of the island component 2 is 5-35%. The superextrafine polyamide fiber is obtained by subjecting the polymer alloy fiber 4 to alkali dissolution. The method for producing the superextrafine polyamide fiber is also provided. COPYRIGHT: (C)2008,JPO&INPIT