D01D5/003

Fine fibers made from room temperature crosslinking
11578431 · 2023-02-14 · ·

The present disclosure provides a unique method of making a fine fiber that is formed from a composition including an epoxy and a polymer component including a 4-vinyl pyridine-containing polymer. The present disclosure also provides a unique method of coating a fine fiber with a composition including an epoxy and a polymer component including a 4-vinyl pyridine-containing polymer. The present disclosure further provides fine fibers wherein the entirety of the fiber is formed from a composition including an epoxy and a polymer component including a 4-vinyl pyridine-containing polymer. Also provided are filter media and filter substrates including the fine fibers.

HYBRID POLYMERIC MATERIALS AND USES THEREOF
20230040485 · 2023-02-09 ·

Disclosed herein is a hybrid polymeric material comprising a tropoelastin and a copolymer of a polyol monomer and a polycarboxylic acid monomer. The hybrid polymeric material is suitable for use as a tissue scaffold.

METAL DEPOSITION-BASED STRECHABLE ELECTRODE USING ELECTROSPUN MAT AND MANUFACTURING METHOD THEREFOR
20230043933 · 2023-02-09 ·

A metal deposition-based stretchable electrode using an electrospun mat and a manufacturing method therefor are disclosed. The stretchable electrode is a stretchable electrode comprising a conductive mat, wherein the conductive mat comprises: nanofibers including a polymer; and a conductive layer formed on the surface of the nanofibers and including a conductor. The stretchable electrode has air/fluid permeability and may have conductivity that exhibits a stable change even in a biaxial deformation environment.

MANUFACTURING METHOD FOR COLORED NONWOVEN FABRIC
20230037752 · 2023-02-09 · ·

The present invention relates to a process for producing a colored nonwoven fabric that contains a colorant and nanofibers, which includes the step of injecting a polymer compound A by an electrospinning method to deposit the nanofibers on a surface of a collector, in which the surface of the collector on which the nanofibers are deposited is at least partially formed into an uneven shape.

COMPOSITE FIBERS AND MATRICES THEREOF
20180002835 · 2018-01-04 ·

Cellulose derivative-polyester composite fibers, matrices including such fibers, and methods for making and using such fibers and matrices are disclosed.

OSTEOINDUCTIVE BONE REGENERATION MATERIAL AND PRODUCTION METHOD OF THE SAME
20230233740 · 2023-07-27 ·

A method of producing an osteoinductive bone graft formed of a plurality of electrospun biodegradable fibers is disclosed. The method includes preparing a fibrous scaffold material formed of the plurality of electrospun biodegradable fibers, wherein the plurality of electrospun biodegradable fibers are entangled with each other to form a cotton-wool like structure having inter-fiber spaces forming a microenvironment for cell growth therein, and immersing the fibrous scaffold in a solution containing BMP-2 so that the BMP-2 is bound to the calcium particles exposed on the surface of the fibers. Area of binding site for BMP-2 on calcium particles exposed on a surface of the electrospun biodegradable fibers is adjusted by an amount of the calcium particles contained in the electrospun biodegradable fibers.

ADAPTIVE CHEMICAL POST-PROCESSING OF NONWOVENS FOR CARDIOVASCULAR APPLICATIONS

A material includes nonwoven fibers and a surface modification that crosslinks the nonwoven fibers together. The surface modification can include chemical reactive groups. The reactive groups can be selected from diisocyanates, alcohols, epoxides, imides, amides, imines, amines, diacrylates, disiloxanes and disilazanes. A method of forming the material electrospins fiber material in the form of fibers into a nonwoven material. A surface modification is introduced to the fibers either by modifying the fiber material before the electrospinning or by modifying the fiber surface after the electrospinning. The fibers are crosslinked to form the crosslinked nonwoven material.

FIBER SHEET, ELECTROSPINNING DEVICE, AND METHOD FOR MANUFACTURING FIBER SHEET
20230228001 · 2023-07-20 · ·

An electrospinning device includes: a plurality of nozzles that discharge a spinning solution containing a resin; and a plurality of power sources for applying charge to the solution. The power sources are connected such that different charges are applied to the solutions discharged from the nozzles, respectively. The fiber sheet is a long fiber nonwoven fabric including first fibers and second fibers that are different from the first fibers. In a histogram based on fiber diameter distributions and frequencies of the numbers of fibers, the fiber sheet has a peak where a ratio P1 of a frequency of the number of fibers of the first fibers to a frequency of the number of fibers of the second fibers is 0.01 or more and 100 or less. Alternatively, the fiber sheet has two or more peaks in the histogram, in which a ratio P2 of a frequency of the number of fibers of the first fibers at a highest peak in a range of a fiber diameter of 3 μm or less to a frequency of the number of fibers of the second fibers at a highest peak in a range of a fiber diameter of more than 3 μm is 1 or more and 1 000 or less.

SUSTAINABLE TIRE WASTE AEROGEL WITH TUNABLE FLEXIBILITY MADE FROM RECYCLED TIRES FOR AUTOMOTIVE APPLICATIONS

A method of manufacturing an elastic polymer aerogel material includes dissolving tire waste, the tire waste including natural rubber, synthetic polymers, steel, fillers, and curing systems, in a solvent to form a first mixture and dissolving a polymer having at least one double carbon-carbon bond in the solvent to form a second mixture. The first mixture and the second mixture are combined, wherein the tire waste reacts with the polymer having at least one double carbon-carbon bond to form a reactant gel. The reactant gel undergoes a solvent exchange followed by freeze drying to form the elastic polymer aerogel material, wherein the elastic polymer aerogel material defines a 3D porous structure.

Electrospun collagen-graphene-polymer composite nanofibers for supercapacitors

Disclosed herein is a composite material that is formed from a polymer, acetylated collagen and graphene, which can be used as a super-capacitor material. Also disclosed herein are methods of making said composite material and its intermediates, as well as a supercapacitor made using said material.