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Class 264/465 - Utilizing electrostatic charge, field, or force (e.g., pinning, etc.)


Subclass of Class 264 - Plastic and nonmetallic article shaping or treating: processes
Definition: Processes wherein the energy used is static electrical or
No. of patents: 83
Last issue date: 05/29/2012


1      
NumberTitleIssue Date
8187520Nonwoven fabric for filters and method of producing the same
The present invention provides a nonwoven fabric for filters which is excellent in dust collection efficiency and exhibits low pressure drop and excellent mechanical characteristics and rigidity, and a method of producing the nonwoven fabric. A nonwoven fabric for f...
05/29/2012
8178029Manufacturing device and the method of preparing for the nanofibers via electro-blown spinning process
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 p...
05/15/2012
8178030Electrospinning of PTFE with high viscosity materials
An improved process for forming a PTFE mat is described. The process includes providing a dispersion with PTFE, a fiberizing polymer and a solvent wherein said dispersion has a viscosity of at least 50,000 cP. An apparatus is provided which comprises a charge source...
05/15/2012
8163227Nanofiber spinning method and device
A nanofiber spinning method and device for producing a high strength and uniform yarn made of nanofibers. The device includes: a nanofiber producing unit (2) which produces nanofibers (11) by extruding polymer solution, prepared by dissolving polymeric...
04/24/2012
8124001Synthetic vascular tissue and method of forming same
Disclosed are composite materials that can more closely mimic the mechanical characteristics of natural elastic tissue, such as vascular tissue. Disclosed materials include a combination of elastic nanofibers and non-elastic nanofibers. Also disclosed are a variety ...
02/28/2012
8110136Method and apparatus for producing nanofibers and polymer web
Nanofibers are formed from a polymer material by rotating a conductive rotating container having a plurality of small holes while supplying a polymer solution formed by dissolving a polymer material in a solvent into the rotating container, charging the polymer solu...
02/07/2012
8088323Process of electrospinning organic-inorganic fibers
Organic-inorganic hybrid fibers and methods for the preparation of such fibers are disclosed. ...
01/03/2012
8088324Electrospray/electrospinning apparatus and method
Apparatus and method for producing fibrous materials in which the apparatus includes an enclosure having an inlet configured to receive a substance from which the fibrous materials are to be composed, a common electrode disposed in the enclosure, and plural extrusio...
01/03/2012
8083983Method of solution preparation of polyolefin class polymers for electrospinning processing included
A process to make a polyolefin fiber which has the following steps: mixing at least one polyolefin into a solution at room temperature or a slightly elevated temperature to form a polymer solution and electrospinning at room temperature said polymer solution to form...
12/27/2011
8048361Method for forming porous bio-mimicking scaffold
The present invention discloses a method for forming a porous bio-mimicking scaffold. At first, at least two types of solutions are provided where at least one of the solutions is a bio-mimicking scaffold solution comprising a bio-mimicking scaffold and at least one...
11/01/2011
8017061Invention concerning agricultural active substances
The invention relates to supports consisting of nanoscalar polymer fibres, polymer tubes or hollow fibres for the application and targeted and/or delayed release of ingredients, in particular, agricultural active ingredients. The invention also relates to a method a...
09/13/2011
8012399Formation of nano-or micro-scale phenolic fibers via electrospinning
Electroprocessed phenolic nanofibers, microfibers, beads, and films and materials including these electroprocessed materials are prepared using a delivery means (10), a grounded collecting means (20) and a power supply (30) for generating an ele...
09/06/2011
7981354Production of metal nano- and mesofibers
The invention relates to a method for producing metal oxide fibers with diameters on the micro- and nanometric scale by using electrospinning. At least one polymer is dissolved in a solvent, a metal salt is dissolved in this polymer solution, and this mixture is sub...
07/19/2011
7981353Method for controlled electrospinning
An electrospinning apparatus and methodology is described that produces medical devices, such as scaffolds that induce the formation of a natural fibrous structure (primarily collagen and elastin) in a tissue-engineered medical device. The apparatus uses collection ...
07/19/2011
7959848Method and device for producing electrospun fibers
The present invention relates to methods for producing fibers made from one or more polymers or polymer composites, and to structures that can be produced from such fibers. In one embodiment, the fibers of the present invention are nanofibers. The present invention ...
06/14/2011
7935298Method of producing fibers by electrospinning at high pressures
A process of making fibers by electrostatic spinning includes the use of a mixing vessel (10), a piston (15) for pressurizing the polymer, carbon dioxide sources (20) for lowering the viscosity of the polymer or pressurizing the collection vesse...
05/03/2011
7901611Method for predicting and optimizing system parameters for electrospinning system
An electrospinning system using a spinneret and a counter electrode is first operated for a fixed amount of time at known system and operational parameters to generate a fiber mat having a measured fiber mat width associated therewith. Next, acceleration of the fibe...
03/08/2011
7901610Method for elevated temperature electrospinning
Elevated temperature electrospinning apparatus comprises a pump upstream of or containing a resistance heater, means to shield applied electrostatic field from the resistance heater, and a temperature modulator for modulating temperature in the spinning region. ...
03/08/2011
7846374Blowing gases in electroblowing process
The present invention is directed to a method for preparing a nanofiber web by feeding a polymer solution, which has at least one polymer dissolved in at least one flammable solvent to a spinning nozzle, discharging the polymer solution from the spinning nozzle into...
12/07/2010
7824601Process of making a tubular implantable medical device
Medical devices, such as stents, including a fibrous layer including particles are disclosed. Methods of forming such medical devices using electrospinning are disclosed. ...
11/02/2010
7815842Method for producing conducting polymer fibers with vinyl and conducting polymer fibers with vinyl produced thereby
The vinyl-type conducting polymer precursor is dissolved in solution containing volatile solvent such as methanol, and the precursor fibers are produced by electrospinning. The vinyl-type conducting polymer fibers are produced by heat treatment of the precursor fibe...
10/19/2010
7807094Process of preparing continuous filament composed of nanofibers
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 collector 7 applied with a high voltage, the collector 7 consisting of (I) ...
10/05/2010
7799262Method of manufacturing a continuous filament by electrospinning
The invention is directed to a method of making continuous filament by electrospinning, wherein electrospun nanofibers are collected on a multi-layer type collector consisting of two or more, rotating disk-shaped conductive materials by electrospinning a polymer dop...
09/21/2010
7718112Nanometer scale structures
Nanometer scale structures, and methods of making the same are disclosed. ...
05/18/2010
7708930Composite material reinforced with nanofiber and method of manufacturing for the same
Disclosed are a nano fiber reinforced composite and a method of manufacturing the same. A spinning dope (nano fiber forming spinning dope) having a viscosity capable of fiber formation upon electrospinning and a spinning dope (spinning dope for matrix) having a visc...
05/04/2010
7662332Electro-blowing technology for fabrication of fibrous articles and its applications of hyaluronan
A method for electroblowing fibers is provided which involves the steps of: forcing a polymer fluid through a spinneret in a first direction towards a collector located a first distance from the spinneret, while simultaneously blow...
02/16/2010
7655175Rotary spinning processes for forming hydroxyl polymer-containing fibers
Rotary spinning processes, more particularly processes for making hydroxyl polymer-containing fibers using a rotary spinning die, hydroxyl polymer-containing fibers made by the processes and webs made with the hydroxyl polymer-containing fibers are provided. ...
02/02/2010
7618580Method for fabrication of a polymeric, conductive optical transparency
A method for fabrication of an optical transparency, that includes electrospinning of an Indium Tin Oxide sol polymer solution such that nanofibers are formed, heat treating the electrospun nanofibers such that the Indium Tin Oxide is in a conductive form, and dispe...
11/17/2009
7618579Manufacturing device and the method of preparing for the nanofibers via electro-blown spinning process
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 p...
11/17/2009
7585451Electroblowing web formation process
An improved electroblowing process is provided for forming a fibrous web of nanofibers wherein polymer stream is issued from a spinning nozzle in a spinneret with the aid of a forwarding gas stream, passes an electrode and a resulting nanofiber web is collected on a...
09/08/2009
7582247Electroblowing fiber spinning process
A fiber spinning process which provides an uncharged, electrically conductive polymer-containing liquid stream, issues said liquid stream in combination with a forwarding gas in a direction from at least one spinning nozzle in said spinneret, passes said liquid stre...
09/01/2009
7575707Electrospinning of fine hollow fibers
A method for electrospinning nanofibers having a core-sheath, tubular, or composite structure is disclosed. The process uses a spinneret having first and second capillaries that channel first and second fluids in the spinneret, the second capillary surrounding the f...
08/18/2009
7504060Method and apparatus for the production of nonwoven web materials
The present invention provides a method of making a nonwoven web with desired fiber orientation, the method including the steps of providing a source of fibers, subjecting the fibers to an electrostatic charge, deflecting the fibers with a non-contacting deflecting ...
03/17/2009
7488441Use of a pulsating power supply for electrostatic charging of nonwovens
Described herein are improvements to processes and equipment for the manufacture of nonwoven webs useful in numerous applications including personal care, protective apparel, and industrial products. The fiber and/or filaments used to form the nonwoven fabric are de...
02/10/2009
7413575Nanofibrous biocomposite prosthetic vascular graft
The present invention provides a bioactive, small-diameter (typically less than 6 mm in internal diameter) vascular graft prosthesis, and is a textile conduit preferably manufactured using a novel electrospinning perfusion methodology. One preferred embodiment is a ...
08/19/2008
7390452Electrospinning of polymer and mesoporous composite fibers
The invention is directed to an apparatus and methods for electrospinning composite fibers including polymeric material and mesoporous molecular sieve material. The methods include in one aspect electrospinning fibers from a conducting solution to which a high volta...
06/24/2008
7384588Process for making a flexible structure comprising starch filaments
A process for making a flexible structure that includes at least a first region and a second region, each of the first and second regions having at least one common intensive property that differs in value. ...
06/10/2008
7354546Process of preparing continuous filament composed of nano fiber
The present invention relates to a process of preparing a continuous filament composed of a nano fiber, wherein nano fibers are prepared by spinning a polymer spinning dope in a spinning dope main tank (20) onto the surface of water or organic solvent (4
04/08/2008
7351052Apparatus for producing nanofiber utilizing electospinning and nozzle pack for the apparatus
The apparatus for producing a nanofiber includes a supply unit (110) for supplying melted polymer for fiber material, a spinning unit (122) having several radiation nozzles (122) to which first voltage having a polar is applied to discharge the ...
04/01/2008
7332050Electronic spinning apparatus, and a process of preparing nonwoven fabric using the same
An electrospinning apparatus including a spinning dope main tank, a metering pump, a nozzle block, a collector positioned at the lower end of the nozzle block for collecting spun fibers, a voltage generator, a plurality of units for transmitting a voltage generated ...
02/19/2008
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