B29B17/0026

Polyester fiber blends and methods of manufacturing same

This application is directed to polymer blends of polyethylene naphthalate, polytrimethylene terephthalate, and polyethylene naphthalate, for use in fibers, such as carpet fibers, and other applications. This application is also directed to methods of producing such polymer blends and fibers.

Method for producing recycled product, recycled resin pellet, and recycled film

A method includes producing recycled products from a plurality of used absorbent articles, each including a top sheet, a back sheet and an absorbent body including absorbent body materials, by recovering a plurality of structural members from the plurality of used absorbent articles. At least one of the top sheet and the back sheet includes a film. The method includes: separating the plurality of used absorbent articles into a plurality of the films and the absorbent body materials; sorting the plurality of films into a plurality of types of recyclable films according to the filler contents of the plurality of films; and forming a plurality of types of recycled resin pellets from the plurality of types of recyclable films.

Multilayer Structure, and Packaging Material for Retort Using Same
20220143959 · 2022-05-12 · ·

The present invention relates to a multilayer structure at least an outer layer and an inner layer which contain a polypropylene resin as a main component, a barrier resin layer containing an ethylene-vinyl alcohol copolymer as a main component, and a metal deposited layer containing aluminum as a main component; a packaging material for a retort therewith; a method for recovering the multilayer structure; and a recovered composition comprising a recovered material of the multilayer structure. There is provided a multilayer structure exhibiting excellent recyclability and excellent appearance, gas barrier ability and shading performance both before and after retorting treatment, and a packaging material for a retort therewith.

SYSTEMS AND PROCESSES FOR RECOVERY OF MIXED MULTI-PLASTIC AND NATURAL FIBER
20220143872 · 2022-05-12 · ·

Methods, systems and agglomerators for recovering mixed multi-plastic and natural fiber are described. The systems, methods, and the agglomerator operate at low temperatures to avoid degradation of the plastic film. The agglomerator includes cutting discs that are adjustable.

METHOD FOR RECYCLING POLYESTER

A method for producing filaments from polyester waste, having the steps of mechanically comminuting the polyester waste, post-condensing the comminuted polyester waste in the solid phase, melting the post-condensed polyester waste and extruding the melt in order to form filaments. Prior to carrying out the melting step for extrusion purposes, the method is completely carried out below the melting temperature of the polyester waste. The solution viscosity of the post-condensed polyester waste equals at least 1.7. Possible applications of the filaments according to the invention are, for example, reinforcement carcasses for vehicle tyres.

SUSTAINABLE NONWOVEN TEXTILE
20220136152 · 2022-05-05 ·

Aspects of the present disclosure relate to a nonwoven textile that is sustainable and that sustainably manufactured. The subject matter may be sustainable in one or more respects. For example, the nonwoven textile may be manufactured from recycled materials. In other instances, the nonwoven textile is itself recyclable to produce additional or subsequent nonwoven articles. In addition, the manufacturing processes used to make the nonwoven textile may consume less energy than other manufacturing processes.

PLASTIC ARTICLES MADE FROM THE SEGREGATION, DECONTAMINATION, AND PURIFICATION OF BIOMEDICAL WASTE PLASTICS IN A SYSTEM LEVERAGING WASTE PRODUCTION DATA TO MODIFY MATERIAL PURIFICATION AND PRODUCT MANUFACTURING
20230252428 · 2023-08-10 · ·

A process for the segregation, sterilization, and purification of recycled plastic medical waste with the subsequent production of plastic products made therefrom is disclosed. Also disclosed is a method for the front-end segregation of recycled plastic medical waste into a polypropylene waste stream and a mixed plastic waste stream. These segregated streams are further purified through a processing method that removes contaminating fibrous, metal and other waste products. Polypropylene and mixed plastic streams isolated using these methods yield a homogenous material that can be blended with other materials for the production of raw plastic or for extrusion to form commercial plastic products. A method for tracking regulated and non-regulated medical waste stream production kinetics and chain of custody from discrete waste disposal sites is also disclosed.

PRECONDITIONED RESIN AGGREGATE
20220126482 · 2022-04-28 ·

Systems and methods are provided for making aggregate from comingled waste plastics. For example, there is provided a method of making a preconditioned absorptive resin aggregate, the method including: obtaining a supply of granulated mixed plastic waste treated with a preconditioning agent that comprises at least one of calcium oxide and calcium hydroxide; mixing the supply of granulated mixed plastic waste treated with the calcium oxide preconditioning agent with one or more additives to form a plastic waste mixture, the one or more additives comprising pozzolans; hot extruding the plastic waste mixture to form an extruded product comprising waste plastic material; cooling the extruded product; and processing the extruded product to form an aggregate. Products incorporating such aggregates, such as, for example, lightweight construction blocks, are also provided. Also provided are methods of forming a waste plastics feedstock.

Compactor

Compactor (100) for the “granulation” of plastic materials, the compactor (100) comprising a first zone or unit (101) for loading and distribution capable of being loaded with plastic material and distributing the plastic material loaded to other zones and/or units of the compactor (100); a second zone or unit (104) comprising a perforated spinneret (110) and at least one compacting roller (105) installed external to the spinneret (110), where the material is “granulated” by “sinterization” deriving from its forced passage through the perforations of the spinneret (110) under the action of the at least one roller (105); a third zone or unit for the forced feeding of the material, being provided at the at least one roller (105) comprising at least one rotating feeder auger (111) housed at least partially in a tubular housing (113).

RECYCLABLE PLASTIC LABEL
20230245596 · 2023-08-03 ·

The disclosure relates to a mechanically recyclable label (1) comprising a face (2) and an adhesive (4). The face (2) comprises ethylene containing polymer and the adhesive (4) comprises pressure sensitive adhesive. The pressure sensitive adhesive comprises at least 15 wt. % of a base polymer, at least 25 wt. % of a tackifier and at least 10 wt. % of a plasticizer. The base polymer, the tackifier and the plasticizer are colourless and odourless. The base polymer is a styrene block copolymer. The mechanically recyclable label (1) is mechanically recyclable with packaging material comprising ethylene containing polymer. The disclosure further relates to a label laminate (8), a method for manufacturing a label laminate (8), a labelled item (101), as well as to use of a label (1) and of a label laminate (8). The disclosure also relates to use of a waste matrix of the label laminate for producing granulates of recycled plastic.