A process for extracting polyester from an article using a solvent system using a compound according to Formula I is described, where ##STR00001##
wherein R.sub.1 and R.sub.2 are each independently selected from: hydrogen, alkyl, alkenyl, alkynyl, aryl or alkoxy groups; R.sub.3 to R.sub.12 are each independently selected from: hydrogen, alkyl, alkenyl, alkynyl, aryl or alkoxy groups; and each of a to e is a carbon atom, wherein the total linear chain length of a-b-c-d-e is in the range of 2 to 5 carbons.

This application describes methods of forming an object. The methods described include forming a mixture with i) one or more primary diamines, ii) one or more polymerizable monomers, iii) a formaldehyde-type reagent, and iv) a polymerization initiator; forming a gel by heating the mixture to a temperature of at least 50 C.; and curing the one or more polymerizable monomers by activating the polymerization initiator. The one or more primary diamines may include one or more amine functional oligomers and/or primary aromatic diamine small molecules. The one or more polymerizable monomers may include styrenics, acrylates, methacrylates, vinyl esters, unsaturated polyesters, and derivatives thereof. The gel is a polyhemiaminal (PHA), a polyhexahydrotriazine (PHT), and/or a polyoctatriazacane (POTA) polymer, and curing of the gel forms an interpenetrating network of the PHA/PHT/POTA and the polymer formed from the polymerizable monomers.

The present invention related to a method of for the production of textile articles, I which the textile articles can be disassembled automatically or semi-automatically, in which, when sewing or stitching, a polymer melt yarn is used.

Described is a method for decoloring of a textile material, the method includes the steps of: providing a textile material; providing an alkaline solution containing one or more anionic polyelectrolytes; treating the textile material in the alkaline solution during a treatment period; and recovering at least some of the textile material from the alkaline solution.

An ultra-light polyurethane artificial leather composition comprises a one-component type blocked polyurethane high solid resin of 100 parts per weight, a capsule-type hollow microsphere of 1 to 10 parts per weight, a curing agent of 1 to 10 parts per weight, and a high solid type toner of 1 to 20 parts per weight.

A method of creating a soft and lofty continuous fiber nonwoven web is provided. The method includes providing first and second, different molten polymers to a spinneret defining a plurality of orifices and flowing a fluid intermediate the spinneret and a moving porous member. The method includes using the fluid to draw the first and second molten polymers, in a direction toward the porous member, through at least some of the plurality of orifices to form a plurality of individual continuous fiber strands. The method includes depositing the continuous fiber strands onto the porous member at a first location to produce an intermediate continuous fiber nonwoven web, and varying, in at least two different zones, a vacuum force applied to the moving porous member and to the intermediate web downstream of the first location and without any heat applied.

A textile article that can be disassembled automatically or semi-automatically, wherein the textile article comprises individual pieces, wherein at least some of said individual pieces are attached to each other by means of a stitching, and wherein for said stitching at least a polymer melt yarn is used, wherein the melt yarn transitions from a solid phase to a liquid or semi-liquid phase at a temperature that is equal to or higher than a melting temperature of the yarn, and wherein the article can be disassembled into individual pieces by means of heating the article or the stitching to a temperature that is equal to or higher than the melting temperature of the yarn.

To provide a recycled-material polyurethane elastic fiber using recovered fabric containing a polyurethane fiber and a final product as raw materials, and a method for producing such. A recycled-material polyurethane elastic fiber wherein a recovered fabric containing a polyurethane fiber is used as at least a portion of raw materials, and a component separated by solvent-extraction separation of the fabric is used as at least a portion of raw materials.

A method for providing a treated cellulose-comprising starting material (110), in particular a starting material for forming a, in particular regenerated, cellulosic molded body (102) is described. The method comprises: i) supplying a cellulose-comprising starting material (101) which comprises cellulosic fibers, and treating (20) the cellulose-comprising starting material (101), to obtain the treated cellulose-comprising starting material (110), such that the cellulose fibers of the treated cellulose-comprising starting material (110) comprises a predetermined fiber length distribution. Furthermore, a method for manufacturing a cellulosic molded body (102), a treated cellulose-comprising starting material (110), and a use of used textiles are described.

The invention relates to a method of making an article by recycling a disperse dyed fabric. The fabric is made from a melt-spun thermoplastic polyurethane fiber which contains a co-polymer diol derived from caprolactone monomer and a polyether polyol. The fabric is shredded and then thermally treated to form granules, which can be melted in an extruder to form an article.