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SYNTHETIC FABRIC HAVING SLIP RESISTANT PROPERTIES AND METHOD OF MAKING SAME
20230096881 · 2023-03-30 ·

A synthetic nonwoven fabric having bonded fibers forming channels surrounding unbonded fibers forming raised slip resistant spots. The fabric is made by extruding hot polymer through a spinneret die onto a moving belt to form a sheet of random fibers, which sheet undergoes a calendering process between a pair of heated rollers, one of which rollers having a plurality of cavities defined in its surface. The resulting fabric can be laminated and otherwise combined with other layers as desired to provide an end product having good slip resistant properties.

POLYMER BIOCOMPOSITES WITH IMPROVED ANTIMICROBIAL ACTIVITY BY BEE BREAD AND THEIR PRODUCTION METHOD
20230098974 · 2023-03-30 ·

Disclosed is a biocomposite product with high microbial activity obtained by using bee bread, the method of obtaining this product and using of this biocomposite material for the coating of products like artificial materials, packaging, etc. to be used in areas requiring hygiene or their use as an intermediate raw material.

NANOFIBROUS WOUND DRESSING
20230033381 · 2023-02-02 ·

The invention is related to the nanofibrous wound dressing that has been developed to be used in the treatment of various types of skin wounds including chronic and acute wounds in the biomedical sector, wherein said wound dressing comprises a bioactive agent that promotes the process of wound healing.

Thermally and dimensionally stabilized compositions and methods of making same

Thermally stable absorbable fiber populations, i.e. fiber populations that do not undergo thermally induced crystallization, can be intermixed with thermally unstable fibers to yield a stabilizing effect without altering morphological properties of a fiber system. Via this, one may minimize thermally induced shrinkage and maintain physical properties of electrospun materials in the as-formed state.

Method for dissolving lignocellulosic biomass

A method of dissolving lignocellulosic biomass waste includes obtaining raw lignocellulosic biomass waste, reducing a size of the biomass waste to provide a biomass particle size of less than about 200 μm; using dimethyl sulfoxide (DMSO), sodium hydroxide (NaOH) and trifluoroacetic acid (TFA) solvents to dissolve the biomass particles and achieve a dissolved lignocellulose solution. The present method dissolves at least about 94% of the lignocellulose fraction in the waste biomass. In an embodiment, the biomass particle size can be about 180 μm.

Electrospinning apparatus
11486057 · 2022-11-01 · ·

According to an embodiment, an electrospinning apparatus includes: a transport roll; and a head unit. The transport roll is a roll that transports a substrate. The transport has a transport surface that is in contact with the substrate when transporting the substrate. The transport surface of the transport roll has a surface roughness Ra of 1.6 or less. The head unit ejects a raw material liquid of fiber toward the substrate transported by the transport roll to form a film of the fiber on the substrate.

Selective laser sintering of asymmetric particles

A polymeric article of high ductility produced by rapid prototyping or selective laser sintering, and a method of making the same. The article comprises a plurality of layers of a fused thermoplastic powder, the thermoplastic powder comprising asymmetric fibrous particles having a mean length L and a mean width W, wherein L>2 W. Within each of the layers, the mean length L of the asymmetric fibrous particles is preferentially oriented in a plane parallel to the layer. The polymeric article has a stress-strain curve such that ultimate strength is reached at a strain of 10% to 20%, and breaking stress is reached at >30% strain.

COMBINED MACRO AND MICRO-POROUS HYBRID-SCALE FIBER MATRIX

Disclosed herein are embodiments of a non-woven hybrid-scale fiber matrix sheet which can be used to improve wound healing. The non-woven hybrid-scale fiber matrix sheet may be both microporous, due to the hybrid-scale fiber matrix , as well as macroporous through the addition of cuts or perforations in the hybrid-scale fiber matrix sheet. The micro and macroporous sheet can improve biological healing at a wound site.

WHEAT GLUTEN NANOFIBER, METHOD FOR PREPARING THE SAME AND APPLICATION THEREOF
20220349092 · 2022-11-03 ·

The invention discloses a method for preparing wheat gluten nanofibers, which comprises steps of: (1) dissolving wheat gluten and glycerol monolaurate in a solvent to obtain a spinning solution; the solvent is an aqueous acetic acid solution; a volume percentage concentration of the aqueous acetic acid solution is 40-60%; in the spinning solution, a mass percentage concentration of wheat gluten is 20-30%; (2) carrying out electrospinning with the spinning solution to obtain wheat gluten nanofibers. The wheat gluten nanofibers of the present invention have water stability and antibacterial function, and are obtained by electrospinning with wheat gluten as a raw material, so the wheat gluten nanofibers have good biocompatibility and biodegradability.

HIGH-ENTROPY CARBIDE CERAMIC AND RARE EARTH-CONTAINING HIGH-ENTROPY CARBIDE CERAMIC, FIBERS AND PRECURSORS THEREOF, AND METHODS FOR PREPARING THE SAME
20230088418 · 2023-03-23 ·

Provided are a high-entropy carbide ceramic, a rare earth-containing high-entropy carbide ceramic, fibers thereof, precursors thereof, and preparation methods thereof. The precursor includes at least four elements selected from Ti, Zr, Hf, V, Nb, Ta, Mo, and W, with each metal element accounting for 5-35% of the total molar quantity of metal elements in the precursor. The rare earth-containing high-entropy carbide ceramic precursor includes at least four transition metal elements and at least one rare-earth metal element. The high-entropy ceramic is a single-crystal-phase high-performance ceramic prepared from the precursor, with each element being homogenously distributed at molecular level. The method for preparing the high-entropy ceramic fiber includes uniformly mixing high-entropy carbide ceramic precursor containing target metal elements with spinning aid and solvent to prepare a spinnable precursor solution, followed by spinning, pyrolyzation, and high-temperature solid solution to prepare the high-entropy carbide ceramic fiber.