Plastic and nonmetallic article shaping or treating: processes – Direct application of electrical or wave energy to work – Extrusion molding
Reexamination Certificate
2002-11-20
2009-11-17
Daniels, Matthew J. (Department: 1791)
Plastic and nonmetallic article shaping or treating: processes
Direct application of electrical or wave energy to work
Extrusion molding
C264S172190, C425S17480E
Reexamination Certificate
active
07618579
ABSTRACT:
The invention relates to a nanofiber web preparing apparatus and method via electro-blown spinning. The nanofiber web preparing method includes feeding a polymer solution, which is a polymer dissolved into a given solvent, toward a spinning nozzle, discharging the polymer solution via the spinning nozzle, which is charged with a high voltage, while injecting compressed air via the lower end of the spinning nozzle, and collecting fiber spun in the form of a web on a grounded suction collector under the spinning nozzle, in which both of thermoplastic and thermosetting resins are applicable, the solution does not need to be heated and electrical insulation is readily realized.
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Ahn Kyoung Ryoul
Jang Rai Sang
Kim Yong Min
Sung Young Bin
Daniels Matthew J.
E.I. du Pont de Nemours and Company
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