B29K2023/04

High density polyethylene for rigid articles

A composition comprising a high molecular weight, chromium catalyzed ethylene copolymer (also referred to as a polyethylene resin), a nucleating agent and zinc oxide.

Method of producing and manufacturing gloves, and other personal protective equipment (PPE), using multi-ply flexible films

A method of producing multi-ply foil sheets intended for the manufacturing of protective covers for body parts, in particular gloves or packaging, comprising of at least two individual plies of film (12) stacked on top of each other and interconnected by means of week and non-continuous bonding, achieved by thermal embossing or ultrasonic welding. The invention also relates to personal protective equipment (PPE) or packaging made of the same multi-ply films.

Method of producing and manufacturing gloves, and other personal protective equipment (PPE), using multi-ply flexible films

A method of producing multi-ply foil sheets intended for the manufacturing of protective covers for body parts, in particular gloves or packaging, comprising of at least two individual plies of film (12) stacked on top of each other and interconnected by means of week and non-continuous bonding, achieved by thermal embossing or ultrasonic welding. The invention also relates to personal protective equipment (PPE) or packaging made of the same multi-ply films.

PROCESS FOR RECYCLING USED PLASTICS USING A LIGHT HYDROCARBON SOLVENT

The present invention relates to a process for purifying a plastic feedstock, involving: a) a dissolution step involving placing the plastic feedstock in contact with a dissolution solvent comprising a hydrocarbon-based compound with a boiling point of between 15 and 100 C., at a dissolution temperature of between 120 C. and 250 C. and a dissolution pressure of between 1.0 and 25.0 MPa, to obtain a crude polymer solution; b) a step of purifying the crude polymer solution to obtain a purified polymer solution, involving: b1) separating out the insoluble matter; b2) washing, by contact with a dense solution; b3) extraction, by contact with an extraction solvent; and/or b4) adsorption of the impurities; and then c) a solvent-polymer separation step, using a supercritical separation section, operated between 160 and 300 C. and at a pressure between 2.7 and 10.0 MPa, followed by at least one solvent recovery section, to obtain purified thermoplastics.

PLANT AND METHOD FOR SORTING POLYMERIC WASTE
20250353219 · 2025-11-20 · ·

A plant for production of a mixture of waste based on polyolefins and XPS suitable for feeding into a pyrolytic reactor. The plant includes: a feeding station that releases a flow of material to be treated; a first station for removing the metal fragments; at least one optical separator for removing the non-polyolefin polymers and the textile and cellulosic fractions; a screen for removing the foreign bodies with dimensions smaller than a predefined minimum; a shredder for reducing the particle size of the material to be treated; a second station for removing the metal fragments; and an aeraulic separator for separating the three-dimensional polyolefin fraction from the two-dimensional polyolefin fraction. The embodiments also concern a method for the production of a mixture of waste based on polyolefin and XPS, suitable for chemical recycling.