Method for producing of dry-spun polyacrylonitrile filaments and fibres with a shaped cross-section
Polyacrylnitrilfasern und -fäden mit scharfem Querschnittsprofil erhält man nach dem Trockenspinnverfahren dadurch, daß man die Acrylnitrilpolymeren aus einer Lösung verspinnt, die eine Viskosität von mindestens 120 Kugelfallsekunden, gemessen bei 80°C oder von mindestens 75 Kugelfallsekunden, gemes...
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Format | Patent |
Language | English French German |
Published |
12.05.1982
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Subjects | |
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Abstract | Polyacrylnitrilfasern und -fäden mit scharfem Querschnittsprofil erhält man nach dem Trockenspinnverfahren dadurch, daß man die Acrylnitrilpolymeren aus einer Lösung verspinnt, die eine Viskosität von mindestens 120 Kugelfallsekunden, gemessen bei 80°C oder von mindestens 75 Kugelfallsekunden, gemessen bei 100°C aufweist, wobei die Düsenlochfläche der Profildüse kleiner als 0,2 mm² und die Schenkelbreite kleiner als 0,17 mm ist.
A process for the production of acrylonitrile fibers and filaments having a precise cross-sectional profile in which filament-forming synthetic polymers are dry-spun from a solution having a viscosity of at least 120 falling bass seconds, measured at 80 DEG C., or a viscosity of at least 75 falling ball seconds, measured at 100 DEG C. Such solution is dry-spun through one or more nozzles. The nozzle hole are of the profile nozzles being less than 0.2 mm2 and the lateral width being less than 0.17 mm. |
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AbstractList | Polyacrylnitrilfasern und -fäden mit scharfem Querschnittsprofil erhält man nach dem Trockenspinnverfahren dadurch, daß man die Acrylnitrilpolymeren aus einer Lösung verspinnt, die eine Viskosität von mindestens 120 Kugelfallsekunden, gemessen bei 80°C oder von mindestens 75 Kugelfallsekunden, gemessen bei 100°C aufweist, wobei die Düsenlochfläche der Profildüse kleiner als 0,2 mm² und die Schenkelbreite kleiner als 0,17 mm ist.
A process for the production of acrylonitrile fibers and filaments having a precise cross-sectional profile in which filament-forming synthetic polymers are dry-spun from a solution having a viscosity of at least 120 falling bass seconds, measured at 80 DEG C., or a viscosity of at least 75 falling ball seconds, measured at 100 DEG C. Such solution is dry-spun through one or more nozzles. The nozzle hole are of the profile nozzles being less than 0.2 mm2 and the lateral width being less than 0.17 mm. |
Author | HERBERTZ, TONI JUNGVERDORBEN, HERMANN-JOSEF BURGHARTZ, HANS KARL BERNKLAU, KURT REINEHR, ULRICH |
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DocumentTitleAlternate | Procédé pour la fabrication des filaments et fibres en polyacrylonitrile, à section profilée filés à sec. Verfahren zur Herstellung von trockengesponnenen Polyacrylnitril-Profilfasern und -fäden. |
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Notes | Application Number: EP19810108416 |
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Snippet | Polyacrylnitrilfasern und -fäden mit scharfem Querschnittsprofil erhält man nach dem Trockenspinnverfahren dadurch, daß man die Acrylnitrilpolymeren aus einer... |
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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 MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING TEXTILES |
Title | Method for producing of dry-spun polyacrylonitrile filaments and fibres with a shaped cross-section |
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