Y02P70/62

METHOD AND DEVICE FOR REGENERATING A SOLVENT OF CELLULOSE FROM A SPINNING PROCESS
20220220640 · 2022-07-14 ·

A process and a device for regenerating a solvent for cellulose in a shaped cellulose article production process, including the steps of starting a continuous process for the production of solid shaped cellulose articles from a cellulose solution which includes the steps of: i) providing a cellulose solution of dissolved cellulose and a cellulose solvent and preferably a non-solvent, particularly preferably water, ii) shaping the cellulose solution into a desired geometrical shape, iii) consolidating the shaped cellulose solution into shaped cellulose articles in a coagulation liquid, iv) washing the shaped cellulose articles, wherein upon start-up and/or during the continuous process, shaped article waste of the cellulose solution accrues in an unwanted form, collecting the shaped article waste in the unwanted form, comminuting the shaped article waste, extracting solvent from the comminuted shaped article waste.

Knitted component for an article of footwear
11412808 · 2022-08-16 · ·

A knitted component may have a first portion, where the first portion has a first layer and a second layer, and where the first layer and the second layer each have opposite-facing surfaces. The first layer and the second layer may be secured via at least one knit structure of the knitted component at a boundary of the first portion. The first layer may form at least one of: (a) an overfoot portion of an article of footwear such that the pocket forms a void of the article of footwear for receiving a foot and such that the first layer forms a top surface of the void, and (b) an underfoot portion of the article of footwear such that the first layer forms a bottom surface of the void of the article of footwear.

PROCESS FOR PRODUCING CARBON FIBER MATERIALS FOR SEPARATING CO2 OR NH3 FROM GAS MIXTURES, CARBON FIBER MATERIALS AND ITS USE

A method for producing a carbon fiber material is disclosed, the method comprising the steps of a) Preparation of a solution of polyacrylonitrile in a suitable organic solvent b) Electrospinning of the solution obtained in a) and drying of the obtained fiber material c) Crosslinking of the obtained fiber material by heating to 150 to 350° C. in an air or oxygen atmosphere for 1 to 30 h d) Carbonization of the obtained fiber material in an inert gas atmosphere at a temperature in the range of 500 to 2,500° C., characterized in that no silicon, sulfur, metal compounds, intermetallic compounds, silicon compounds and/or sulfur compounds are added to the polyacrylonitrile solution in step a) and that neither stabilization nor surface modification steps are carried out with the fiber material by treatment with chemical reagents and/or exposure to tensile stress.

Also disclosed is a carbon fiber material obtainable by the above process, as well as a carbon fiber material, characterized in that it has a proportion of ultramicropores V.sub.<0.4 nm of 0.01 to 10, more preferably 0.02 to 5, even more preferably 0.025 to 0.1, most preferably 0.03 to 0.06 cm.sup.3/g, determined by CO.sub.2 adsorption tests and evaluation with DFT and GC-MC simulation.

COMPOSITION AND METHOD FOR PRODUCING CELLULOSE FIBER

Provided is a cellulose solution (a composition) in which decomposition of cellulose does not easily proceed even if heated. Further, provided is a method for producing a cellulose fiber excellent in mechanical strength. The composition includes cellulose and a compound represented by the following formula (1), a concentration of 1-methylimidazolium chloride being 300 ppm or less on a mass basis with respect to the compound represented by the formula (1).

In the formula (1), R is an alkyl group having 2 to 6 carbon atoms, and Me is a methyl group.

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Footwear article having repurposed material with concealing layer
11412817 · 2022-08-16 · ·

In example aspects, materials are repurposed for footwear manufacturing. That is, in some instances, materials in the footwear manufacturing supply chain are potentially subject to disposal. However, aspects of this disclosure sustainably repurpose those materials (that might otherwise be disposed of) to be used in footwear articles. In some aspects, the repurposed materials may be obscured with a concealing layer.

SYSTEM AND METHOD OF PRODUCING CARBON NANOTUBES
20220177311 · 2022-06-09 ·

A system and method of producing carbon nanotubes from flare gas and other gaseous carbon-containing sources.

Method and Apparatus for Flexible Circuit Cable Attachment

A method and apparatus for multiple flexible circuit cable attachment is described herein. Gold bumps are bonded on interconnection pads of a substrate to create a columnar structure and solder or conductive epoxy is dispensed on the flexible cable circuit. The substrate and flexible cable circuit are aligned and pressed together using force or placement of a weight on either the substrate or flexible cable circuit. Appropriate heat is applied to reflow the solder or cure the epoxy. The solder wets to the substrate pads, assisted by the gold bumps, and have reduced bridging risk due to the columnar structure. A nonconductive underfill epoxy is applied to increase mechanical strength.

Process for making a shoe and shoe thus made
11272757 · 2022-03-15 ·

Disclosed herein is a process for making a shoe using a stand-alone mouldable nonwoven fabric which has the ability of self-sustaining and shape maintenance and which is heated to become softened till molten. In the process of the invention, the shoe parts are moulded by a compression moulding process and the moulded parts are then heated and welded together by a plastic welding method.

A PROCESS AND A SPINNING LINE UNIT FOR WET SPINNING OF CELLULOSE FIBERS FROM AN ALKALINE SPIN BATH
20220112628 · 2022-04-14 ·

A process for forming a fiber tow, involves a wet spinning procedure comprising the steps of: dissolving cellulose pulp N in an alkaline aqueous solvent to form a cellulose spin dope composition, spinning the cellulose spin dope composition in a coagulation having a p H of more than 7.0, preferably a pH of at least 10, to produce a fiber tow, and passing the produced fiber tow through a sequence of consecutive stretching and washing steps in which the formed fiber tow is washed with a washing liquid by a counter-current flow washing procedure.

Method and Integrated System for Non-aqueous Solvent Medium (NASM) Dyeing of Multiple Forms of Synthetic, Natural and Blended Textiles

A method and an integrated system for dyeing synthetic, natural, and blended textiles in the form of fabrics, yarns, and garments are provided. The integrated system includes a first pressurizing pump for pressurizing liquefied CO.sub.2 to supercritical CO.sub.2 (Sc—CO.sub.2); a second pressurizing pump for pressurizing CO.sub.2 to liquefied CO.sub.2; a liquefied CO.sub.2 storage vessel for storing the liquefied CO.sub.2 and the separated liquefied CO.sub.2 from the one or more cyclone separators; a heater for heating the Sc—CO.sub.2; a dyestuff vessel for mixing a dyestuff and the Sc—CO.sub.2 to obtain Sc—CO.sub.2-mixed dyestuff; a dyeing vessel for dyeing the textile by circulating the Sc—CO.sub.2 and the Sc—CO.sub.2-mixed dyestuff between the dyeing vessel and the dyestuff vessel; and one or more cyclone separators for removing the dyestuff from the Sc—CO.sub.2-mixed dyestuff to obtain separated liquefied CO.sub.2.