Polyester-Stapelfasern und Verfahren zu deren Herstellung
Polyester staple fibers consisting of a polyester, 0.1 to 2.0 w.- % of an incompatible, melt processable, amorphous polymeric additive with a glass transition temperature of 90 to 170 DEG C and a melt viscosity/polyester component ratio of 1:1 to 10:1, and 0 to 5.0 weight % of usual additives. The p...
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Main Authors | , , , , |
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Format | Patent |
Language | German |
Published |
15.02.2001
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Abstract | Polyester staple fibers consisting of a polyester, 0.1 to 2.0 w.- % of an incompatible, melt processable, amorphous polymeric additive with a glass transition temperature of 90 to 170 DEG C and a melt viscosity/polyester component ratio of 1:1 to 10:1, and 0 to 5.0 weight % of usual additives. The polymeric additives in the staple fibers are present in the form of fibrils with a mean diameter of </= 80 nm. The invention also relates to method for the production of staple fibers, comprising mixing and simultaneously shearing the polyesters and the polymeric additives and optionally the usual additives and spinning at a speed of < 2500 m/min relative to form of spun fibers. Said are bundled together to form cables and stretched in aseparate drawframe to form separate reels of fiber, crimped, dried and cut to form staple fibers.
Polyester-Stapelfasern, bestehend aus einem Polyester, 0,1 bis 2,0 Gew.-% eines inkompatiblen, thermoplastisch verarbeitbaren, amorphen polymeren Additivs mit einer Glasumwandlungstemperatur von 90 bis 170 C und einem Verhältnis seiner Schmelzeviskosität zu der der Polyesterkomponente 1 : 1 bis 10 : 1, und 0 bis 5,0 Gew.-% üblicher Zusatzstoffe, wobei das polymere Additiv in den Stapelfasern in Form von Fibrillen mit einem mittleren Durchmesser von 6 80 nm vorliegt. DOLLAR A Verfahren zur Herstellung dieser Stapelfasern durch Mischen unter Scherung des Polyesters und des polymeren Additivs sowie ggf. der üblichen Zusatzstoffe, Verspinnen mit einer Spinnabzugsgeschwindigkeit von < 2500 m/min zu Spinnfäden, die zu Kabeln zusammengefaßt werden und in einer separaten Faserstrecke verstreckt, gekräuselt, getrocknet und zu Stapelfasern geschnitten werden. |
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AbstractList | Polyester staple fibers consisting of a polyester, 0.1 to 2.0 w.- % of an incompatible, melt processable, amorphous polymeric additive with a glass transition temperature of 90 to 170 DEG C and a melt viscosity/polyester component ratio of 1:1 to 10:1, and 0 to 5.0 weight % of usual additives. The polymeric additives in the staple fibers are present in the form of fibrils with a mean diameter of </= 80 nm. The invention also relates to method for the production of staple fibers, comprising mixing and simultaneously shearing the polyesters and the polymeric additives and optionally the usual additives and spinning at a speed of < 2500 m/min relative to form of spun fibers. Said are bundled together to form cables and stretched in aseparate drawframe to form separate reels of fiber, crimped, dried and cut to form staple fibers.
Polyester-Stapelfasern, bestehend aus einem Polyester, 0,1 bis 2,0 Gew.-% eines inkompatiblen, thermoplastisch verarbeitbaren, amorphen polymeren Additivs mit einer Glasumwandlungstemperatur von 90 bis 170 C und einem Verhältnis seiner Schmelzeviskosität zu der der Polyesterkomponente 1 : 1 bis 10 : 1, und 0 bis 5,0 Gew.-% üblicher Zusatzstoffe, wobei das polymere Additiv in den Stapelfasern in Form von Fibrillen mit einem mittleren Durchmesser von 6 80 nm vorliegt. DOLLAR A Verfahren zur Herstellung dieser Stapelfasern durch Mischen unter Scherung des Polyesters und des polymeren Additivs sowie ggf. der üblichen Zusatzstoffe, Verspinnen mit einer Spinnabzugsgeschwindigkeit von < 2500 m/min zu Spinnfäden, die zu Kabeln zusammengefaßt werden und in einer separaten Faserstrecke verstreckt, gekräuselt, getrocknet und zu Stapelfasern geschnitten werden. |
Author | SCHWIND, HELMUT JANAS, WOLFGANG UDE, WERNER CORDES, INGO WANDEL, DIETMAR |
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Snippet | Polyester staple fibers consisting of a polyester, 0.1 to 2.0 w.- % of an incompatible, melt processable, amorphous polymeric additive with a glass transition... |
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SubjectTerms | 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 MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY NATURAL OR ARTIFICIAL THREADS OR FIBRES ORGANIC MACROMOLECULAR COMPOUNDS SPINNING TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP |
Title | Polyester-Stapelfasern und Verfahren zu deren Herstellung |
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