Patent application number | Description | Published |
20080237934 | Method and Device For Producing Electrospun Fibers and Fibers Produced Thereby - 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 also relates to apparatus for producing fibers made from one or more polymers or polymer composites, and methods by which such fibers are made. | 10-02-2008 |
20090020921 | HYBRID MANUFACTURING PLATFORM TO PRODUCE MULTIFUNCTIONAL POLYMERIC FILMS - The present invention relates to a method for producing hybrid materials of thin polymer films with single, laminated, complete and/or partially embedded nanofibers to obtain products with unique functional properties. In one embodiment, the present invention involves a method that comprises the combination of two process technologies; a thin film solution casting process (tape casting, solvent casting) and an electrospinning process, in order to produce hybrid materials of thin polymer films with single, laminated, completely and/or partially embedded electrospun nanofibers to obtain products with unique functional properties. In another embodiment of the present invention, fibers and/or nanofibers of a chosen material are spun directly on to substrates of polymer solutions and/or monomers solutions, were such solutions are located on a carrier belt that is electrically and/or ionically conductive. | 01-22-2009 |
20090039565 | PROCESS FOR PRODUCING FIBERS AND THEIR USES - The present invention is directed to the use and production of fibers from one or more polymers or polymer composites. In one embodiment, the fibers of the present invention are nanofibers. In another embodiment, the fibers of the present invention are polymer nanofibers that further include at least one active agent or additive contained on, in, or about the polymer nanofibers of the present invention. In still another embodiment, the fibers of the present invention can be used to yield carbon and/or ceramic fibers/nanofibers. | 02-12-2009 |
20090068461 | CARBON NANOTUBES ON CARBON NANOFIBER SUBSTRATE - A hierarchical structure that has at least one carbon nanotube extending radially from a nanofiber substrate and related methods of use and manufacture. | 03-12-2009 |
20090075354 | NANOFIBER STRUCTURES FOR SUPPORTING BIOLOGICAL MATERIALS - The present invention relates generally to nanofiber structures designed to support, entrap, entangle, preserve, and/or retain one or more biological materials. More specifically, the present invention relates to nanofiber matrix structures made from at least two different types of nanofibers that are designed to support, entrap, entangle, preserve, and/or retain one or more biological materials. | 03-19-2009 |
20090324680 | NANOFIBER-REINFORCED COMPOSITION FOR APPLICATION TO SURGICAL WOUNDS - A nanofiber-reinforced composition suited to applying to a wound site in a human body includes a carrier liquid and nanofibers dispersed therein. The viscosity of the composition is such that it is able to be applied through a tube yet adhere proximate the wound site to provide a barrier layer which assists in healing of the wound by spacing it from neighboring organs. | 12-31-2009 |
20100009267 | METAL OXIDE FIBERS AND NANOFIBERS, METHOD FOR MAKING SAME, AND USES THEREOF - The present invention generally relates to metal oxide fibers and nanofibers, the processes for making same, and uses thereof. Such metal oxide nanofibers possess the ability to absorb and decompose chemical warfare agents and other toxic chemicals. These nanofibers can be incorporated into protective clothing and devices for breathing or in another example may be used in lithium-ion batteries. In one embodiment, the present invention relates to titania, alumina, and/or magnesia fibers and nanofibers, and to processes for making same. In another instance, alpha-phase aluminum oxide is utilized as one material in nanofibers. | 01-14-2010 |
20100215790 | ELECTROSPINNING CONTROL FOR PRECISION ELECTROSPINNING OF POLYMER FIBERS - The present invention includes embodiments that generally relate to methods and devices for control of electrospinning processes. Some embodiments include constant current electrospinning jets. Other embodiments include pressure control using a system of valves in fluid communication with the electrospinning fluid. Still other embodiments include control of one or more physical parameters. | 08-26-2010 |
20100283189 | BUBBLE LAUNCHED ELECTROSPINNING JETS - The invention relates to a novel method for electrospinning fibers wherein the fiber-spinning solution is infused with gas bubbles which travel through the electrospinning fluid, causing the bubbles to be coated with electrospinning solution. The coated bubbles, in turn, in response to an applied electrical force, generate jets of the electrospinning fluid that travel away from the bubble surface. The invention further relates to the fibers formed by this bubble-jet process and to products made therefrom. | 11-11-2010 |
20110028878 | NON-WOVEN FIBER ASSEMBLIES - In one embodiment, the present invention relates to a non-woven fiber assembly comprising one or more fibers wherein each fiber contains: a hydrophilic component; and an elastomeric component, and wherein the non-woven fiber assembly further comprises an adhesive component. In still another embodiment, the present invention relates to a non-woven fiber assembly comprising one or more fibers wherein each fiber contains: a hydrophilic component; an elastomeric component; and an adhesive component, wherein the hydrophilic component, the elastomeric component and the adhesive component are all contained within each fiber. Also disclosed is a method of making the afore-mentioned non-woven fiber assemblies. Additionally, a medical dressing made from the non-woven fiber assemblies of the present invention is disclosed. | 02-03-2011 |
20110101571 | METHOD OF MAKING COILED AND BUCKLED ELECTROSPUN FIBER STRUCTURES - An apparatus and method for making coiled and buckled electrospun fiber including (a) providing a solution of a polymer in an organic solvent and a device for electrospinning fiber; b) subjecting the polymer solution to an electric field such that at least one fiber is electrospun; (c) subjecting the so formed fiber to electrical bending and mechanical buckling instability to hereby form a coiled and buckled fiber; (d) collecting the at least one fiber on a collector, such that a fiber structure is produced. | 05-05-2011 |
20110111201 | Method of making coiled and buckled electrospun fiber structures and uses for same - The present invention relates generally to methods to produce various desired patterns (e.g., coils) via an electrospinning process where such desired patterns possess certain desired properties (e.g., desired electrical properties). In one embodiment, the present invention relates to a method for producing coiled fiber patterns at a rate of one turn of the coil in a set time period (e.g., about one microsecond). In another embodiment, the present invention relates to methods to produce “resonator structures” that are the basic element of artificial dielectrics. In still another embodiment, the present invention relates to methods to produce coils with various specified diameters (e.g., about 10 microns) which can, among other things, enable the production of repeating patterns in a wallpaper-like array. In still yet another embodiment, the present invention relates to methods to hierarchical structures that offer mechanical support for various nanofibers. | 05-12-2011 |
20110229916 | NANOFIBERS WITH HIGH ENZYME LOADING FOR HIGHLY SENSITIVE BIOSENSORS - The invention provides high enzyme loading nanofibers and processes utilized in their fabrication, the nanofibers suitable for use as a new class of highly sensitive and stable biosensors capable of monitoring glucose at low levels. The biosensors, comprising nanofiber enzyme materials fabricated from organic solvent-based polymer-enzyme systems, can be used effectively in non-invasive transdermal biosensing applications. | 09-22-2011 |
20120065727 | MECHANICALLY ATTACHED MEDICAL DEVICE COATINGS - The present invention relates to nanofibrous coatings on medical devices such a surgical mesh or stent, wherein the coating is mechanically attached to the device. The principal mechanism for attaching the coating is through causing the fibers to permeate and entangle with the substrate. | 03-15-2012 |
20120077280 | NANOFIBERS WITH MODIFIED OPTICAL PROPERTIES - Nanofibers modified to alter their optical properties in the infrared part of the electromagnetic spectrum, which nanofibers can be used in applications ranging from identification technology to energy conversion devices (e.g., thermophotovoltaics) to stealth technology. The desired optical properties can be obtained by modifying the fibers with rare earth and other materials and then can be incorporated into garments or other composite structures or can be applied as coatings on solid surfaces, to be used in a number of applications that benefit from selective emission properties. | 03-29-2012 |
20130190709 | MECHANICALLY STRONG ABSORBENT NON-WOVEN FIBROUS MATS - The present invention is generally directed to a liquid entrapping device having the capacity to absorb liquids. More particularly, the present invention is directed to a liquid entrapping device comprising an absorbent component, hydrophilic elastomeric fibrous component in fluid communication therewith, and optionally an adhesive component. The present invention is also directed to a liquid entrapping device having the capacity to absorb liquids while maintaining a suitable degree of mechanical strength. Furthermore, the present invention is generally directed to methods for making and using the foregoing devices and materials. | 07-25-2013 |
20140284828 | METHOD OF CHARACTERIZATION OF VISCOELASTIC STRESS IN ELONGATED FLOW MATERIALS - The present invention generally relates to a device for measuring characteristics of polymeric fluids (semi-dilute and concentrated polymer solutions and melts) in extremely strong elongational flows. In one embodiment, the present invention relates to a device for measuring characteristics of polymeric fluids (semi-dilute and concentrated polymer solutions and melts) in extremely strong elongational flows in spinning jets and/or electrified jets. In another embodiment, the present invention relates to a method for determining the elastic modulus and the relaxation time of a polymeric fluid. Also, the present invention enables one to determine and/or measure the primary parameters needed to describe a viscoelastic material. | 09-25-2014 |