Plastic and nonmetallic article shaping or treating: processes – Direct application of electrical or wave energy to work – Extrusion molding
Reexamination Certificate
2004-11-12
2010-10-05
Tentoni, Leo B (Department: 1791)
Plastic and nonmetallic article shaping or treating: processes
Direct application of electrical or wave energy to work
Extrusion molding
C264S130000, C264S171100, C264S210300, C264S210800, C264S211120, C264S211140, C264S211150, C264S211170, C264S234000
Reexamination Certificate
active
07807094
ABSTRACT:
A method for producing a continuous filament made up of nanofibers is disclosed. A ribbon-shaped nanofiber web is prepared by electrospinning a polymer spinning solution onto a collector7applied with a high voltage, the collector7consisting of (I) an endless belt type nonconductive plate7awith grooves having a predetermined width (u) and depth (h) formed at regular intervals along a lengthwise direction and a conductive plate7binserted into the grooves of the nonconductive plate, and then the nanofiber web is isolated (separated) from the collector7, focused, drawn and wound. A continuous filament (yarn) made up of nanofibers can be produced by a simple and continuous process by providing a method for continuously producing a filament (yarn) by an electrospinning technique without a spinning process. The focusability and the drawability can be greatly improved by orienting nanofibers well in the fiber axis direction. Due to this, a continuous filament of nanofibers more excellent in mechanical properties can be produced.
REFERENCES:
patent: 4091140 (1978-05-01), Harmon
patent: 2001/0052896 (2001-12-01), Yun
patent: 2002/0089094 (2002-07-01), Kleinmeyer et al.
patent: 2002/0117770 (2002-08-01), Haynes et al.
patent: 2003/0201579 (2003-10-01), Gordon et al.
patent: 2003-8049 (2003-01-01), None
Kim Hak-Yong
Park Jong-Cheol
Birch & Stewart Kolasch & Birch, LLP
Tentoni Leo B
LandOfFree
Process of preparing continuous filament composed of nanofibers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process of preparing continuous filament composed of nanofibers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process of preparing continuous filament composed of nanofibers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4225457