B29B17/0412

PROCESSES AND STRUCTURES FOR RECYCLING CARPET AND PRODUCTS OF SUCH PROCESSES

Methods and equipment for the recycling of carpet are disclosed that produce a clean fiber product suitable for industrial use. The methods allow the recovery of face fiber material, for example a polyester, polyolefin, or a polyamide, from carpets that includes a face fiber material, a polypropylene backing material, and an adhesive, and include the steps of mechanically impacting the carpet to break the bonds between the adhesive and the fibrous components, treating the fibrous components to remove adhesive granules from the fibrous components, and optionally separating the polypropylene backing from the face fiber. A clean adhesive/calcium carbonate product can also be produced from this process.

ADVANCED MANUFACTURING SYSTEM TO RECYCLE CARPET
20220288602 · 2022-09-15 ·

An advanced manufacturing plant and process to efficiently deconstruct and recycle post-consumer carpet primarily in an aqueous environment. The water-based technology substantially eliminates airborne particulate emissions into the workplace and the environment. It also significantly increases the quality and quantity of the resources recovered from the carpet. In addition to recycling residential carpet, it also reclaims and recycles material from commercial broadloom carpet.

METHOD FOR STERILIZING AND DECONTAMINATING POST-CONSUMER ABSORBENT SANITARY PRODUCTS POLLUTED WITH ORGANIC COMPOUNDS DERIVED FROM HUMAN METABOLISM

A method for sterilizing and decontaminating post-consumer absorbent products polluted with organic compounds derived from human metabolism including drug residues, the post-consumer absorbent sanitary products comprising fractions of plastic, super-absorbent polymers (SAP), and optionally cellulose, the method including at least the steps of: sterilizing (SR) the absorbent sanitary post-consumer products by heating to a temperature equal to or less than 140° C., and to a pressure lower than 4 bar, decontaminating (DC) the post-consumer absorbent sanitary products of organic compounds by treating with an oxidizing composition comprising at least one compound selected from the group consisting of hydrogen peroxide, sodium percarbonate, potassium percarbonate, sodium perborate, potassium perborate, potassium monopersulfate, ammonium persulfate, sodium persulfate, potassium persulfate, and ozone. The at least one compound is contained in the oxidizing composition in an amount equal to or greater than 2% by weight with respect to the dry weight of the post-consumer absorbent sanitary products.

MULTILAYER STRUCTURES HAVING IMPROVED RECYCLABILITY

Embodiments of the present disclosure are directed to multilayer structures. The multilayer structures may include a first layer and a barrier layer. The first layer may include, based on the total weight of the first layer, from 90 wt. % to 99.5 wt. % of an ethylene/alpha-olefin interpolymer having a density of from 0.945 g/cc to 0.970 g/cc and from 0.5 wt. % to 10 wt. % of a compatibilizer. The compatibilizer may include an anhydride and/or carboxylic acid functionalized ethylene/alpha-olefin elastomer having a density of from 0.850 g/cc to 0.910 g/cc and a melt viscosity of greater than 200,000 cP, when measured at 177 C.

METHOD AND SYSTEM FOR THE ELIMINATION OF ODOURS IN RECYCLED PLASTICS
20220298323 · 2022-09-22 ·

The invention relates to a method and system for the elimination of odours in recycled plastic materials, which comprises the steps of: separating and conditioning the plastic; shredding the plastic by means of a bladed shredded, which reduces the plastic into powder-sized particles; chemically washing with a surfactant, which is carried out in a stirring tank; rinsing the plastic material to eliminate dirt and the chemicals used, which is carried out in a rinsing reactor; mechanically drying the clean material in a dryer; and deodorising the plastic, wherein volatile organic compounds (VOCs) are removed from the clean, dry material by means of steam distillation, deodorisation being performed in a steam distillation column, the VOC-free plastic exiting through the bottom part of the column.

PROCESS FOR RECOVERING SULFOPOLYESTER

The present disclosure provides a process of recovering sulfopolyester comprising reduced impurity. Sulfopolyester is recovered from a composite material comprising water-dispersible sulfopolyester polymer and at least one non-water-dispersible polymer. The process includes washing the composite material comprising water-dispersible sulfopolyester with a solvent composition. The recovered sulfopolyester can be generated as a concentrated aqueous dispersion, a polymer melt, or a sulfopolyester solid.

RECOVERED SULFOPOLYESTER

The present disclosure provides a process of recovering sulfopolyester comprising reduced impurity. Sulfopolyester is recovered from a composite material comprising water-dispersible sulfopolyester polymer and at least one non-water-dispersible polymer. The process includes washing the composite material comprising water-dispersible sulfopolyester with a solvent composition. The recovered sulfopolyester can be generated as a concentrated aqueous dispersion, a polymer melt, or a sulfopolyester solid.

PROCESS FOR PREPARING A BROKEN-UP, CELLULOSE-CONTAINING, STARTING MATERIAL WITH A PREDEFINED FIBRE-LENGTH DISTRIBUTION
20220243396 · 2022-08-04 ·

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.

Advanced manufacturing system to recycle carpet
11376606 · 2022-07-05 · ·

An advanced manufacturing plant and process to efficiently deconstruct and recycle post-consumer carpet primarily in an aqueous environment. The water-based technology substantially eliminates airborne particulate emissions into the workplace and the environment. It also significantly increases the quality and quantity of the resources recovered from the carpet. In addition to recycling residential carpet, it also reclaims and recycles material from commercial broadloom carpet.

SMART PORTABLE DEVICE AND SYSTEM FOR DISPOSAL OF SANITARY WASTE
20220250127 · 2022-08-11 ·

The invention discloses a safe, cost effective, portable, eco-friendly sanitary pads disposing device and system. The device is smart and automatic used for shredding and disinfecting the used sanitary pads without any environmental pollution. The system comprises of plurality of collection bins, sanitary pad disposal device, a data acquisition module, a remote server, a data transmission module etc. for remotely monitoring the status of each disposal process.