D - Textiles – Paper – 01 – D
Patent
D - Textiles, Paper
01
D
D01D 5/00 (2006.01) B05B 1/28 (2006.01) B05B 7/06 (2006.01) D01D 4/02 (2006.01) D01D 5/098 (2006.01)
Patent
CA 2457136
A nozzle (60) for forming nanofibers by using a pressurized gas stream comprises a center tube (11), a first supply tube (61) that is positioned concentrically around and apart from the center tube (11), a middle gas tube (73) positioned concentrically around and apart from the first supply tube (61), and a second supply tube (77) positioned concentrically around and apart from the middle gas tube (73). The center tube (11) and first supply tube (61) form a first annular column (69). The middle gas tube (73) and the first supply tube (61) form a second annular column (75). The middle gas tube (73), and second supply tube (77) form a third annular column (79). The tubes are positioned so that first (71) and second (92) gas jet spaces are created between the lower ends of the center tube (11) and first supply tube (61), and the middle gas tube (73) and second supply tube (77), respectively. A method for forming nanofibers from a single nozzle is also disclosed.
L'invention concerne une buse (60) conçue pour former des nanofibres au moyen d'un flux de gaz pulvérisé, qui comprend un tube central (11), un premier tube d'alimentation (61) placé concentrique autour et à distance du tube central (11), un tube de gaz médian (73) placé concentrique autour et à distance du premier tube d'alimentation (61), et un second tube d'alimentation (77) placé concentrique autour et à distance du tube de gaz médian (73). Le tube central (11) et le premier tube d'alimentation (61) forment une première colonne annulaire (69). Le tube de gaz médian (73) et le premier tube d'alimentation (61) forment une deuxième colonne annulaire (75). Le tube de gaz médian (73) et le second tube d'alimentation (77) forment une troisième colonne annulaire (79). Les tubes sont placés de sorte qu'un premier (71) et un second (92) espace de jet de gaz soient créés respectivement entre les extrémités inférieures du tube central (11) et du premier tube d'alimentation (61), et celles du tube de gaz médian (73) et du second tube d'alimentation (77). L'invention concerne également un procédé de formation de nanofibres à partir d'une buse unique.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
The University Of Akron
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