B32B2305/70

NANOCOMPOSITES OF BRITTLE POLYMERIC MATERIALS

A process for producing a nanocomposite of a brittle polymeric material includes forming sheets or films from the brittle polymeric material compounded with a plasticizer. A mat of nanofibres of at least one thermoplastic is sandwiched between two of the sheets or films to form a green nanocomposite structure. The green nanocomposite structure is subjected to an elevated pressure and an elevated temperature to produce a sheet or film nanocomposite of the brittle polymeric material. The sheet or film nanocomposite shows improved impact resistance compared to a neat, uncompounded sheet or film of the same brittle polymeric material

Reclaimed PP-Containing OPP Films
20250196483 · 2025-06-19 · ·

In one embodiment, the disclosure provides an oriented film having at least one layer comprising about 5 wt. % through about 95 wt. % of a combination of virgin polypropylene and reclaimed polypropylene, wherein the reclaimed polypropylene has a melt flow index from about 0.5 g/min through about 10 g/min and a dispersion index from about 2 through 10, wherein filter pressure of the reclaimed polypropylene about 50 bar/kg when using a 350-mesh filter on a COLLIN Teach Line Type FT-E20T extruder according to the method and settings in the description.

Method for composite delamination

The invention provides a method for delaminating a composite by immersing the composite into a delamination solution; wherein the composite comprises a metal substrate and a coating applied on one side or both sides of the metal substrate, wherein the coating comprises a polymeric binder, and wherein the polymeric binder comprises an aqueous copolymer. The use of delamination solution comprising an alkali metal silicate salt allows for complete delamination of the composite in a highly efficient and extremely fast manner. Furthermore, the delamination method disclosed herein circumvents complex separation processes, contamination and corrosion of the metal substrate and enables an excellent materials recovery. An application of the method for delaminating an electrode for a battery is disclosed herein.

FLEXIBLE PLASTIC REVERSE-PRINTED PACKAGING COMPOSED OF POLYETHYLENE WITH HAZY POLYMER LAYER

The present description relates to the use of a hazy polymer layer composed of non-oriented HMW-HDPE in a reverse printing film that can be part of a PE-based flexible packaging material used for self-standing packages. The hazy polymer layer can facilitate an excellent matte finish and visibility of the print, for example, or can be part of a co-extruded printing film with skins that provide a glossy finish to the product while enabling good print visibility. The present technology can enable production of PE-based packaging facilitating plastic recycling.

ANTI-FATIGUE GEL GROUND MAT BASED ON RECYCLED SPONGE
20250280982 · 2025-09-11 ·

An anti-fatigue gel ground mat based on recycled sponge is disclosed, which includes a ground mat body. A beveled edge structure is arranged around the ground mat body. The ground mat body includes a surface layer, a gel layer, a recycled sponge layer, and an anti-skid layer compounded together in sequence from top to bottom. The gel layer is polyurethane solid gel. By arranging the gel layer, when the user steps on the ground mat body, the surface of the ground mat body is naturally concave to realize fatigue resistance. By arranging the beveled edge structure, the user can be prevented from stumbling, so that the safety is improved. The polyurethane solid gel is extruded in the shape of a snake to a lower surface of the surface layer through extrusion equipment, so that the use level of the polyurethane solid gel can be effectively reduced.

Method for producing polyamide resin film
12428532 · 2025-09-30 · ·

[Problem] To provide a method for producing a polyamide resin film by using a polyamide resin obtained through polymerization of a regenerated monomer used as a recycled material. [Solution] Provided is a method for producing a polyamide resin film, including: (1) a step of producing a monomer from a raw material (A) for depolymerization, (2) a step of producing a polyamide resin (B) through polymerization using a raw material containing the monomer, (3) a step of refining the polyamide resin (B), and (4) a step of producing an unstretched film using a starting material containing the refined polyamide resin (B), and stretching the unstretched film.

MULTILAYER POLYETHYLENE FILM

The invention relates to a multilayer polyethylene film comprising a skin layer, a sealant layer and a core layer located between the skin layer and the sealant layer, wherein the core layer comprises a core layer composition, the core layer composition comprising a recycled polyethylene having an MFR.sub.2 of 0.1 to 2.0 g/10 min determined according to ISO 1133 and a density of 910 to 930 kg/m.sup.3 determined according to ISO 1183, a multimodal ethylene terpolymer having an MFR.sub.2 of 0.5 to 2.0 g/10 min determined according to ISO 1133 and a density of 910 to 930 kg/m.sup.3 determined according to ISO 1183, and a polyethylene having an MFR5 of 0.1 to 2.5 g/10 min determined according to ISO 1133 and a density of 925 to 950 kg/m.sup.3 determined according to ISO 1183. The invention further relates to a process for producing the multilayer polyethylene film, the use of the core layer composition as a core layer in a multilayer polyethylene film for improving the haze and the SIT of the multilayer polyethylene film and an article comprising the multilayer polyethylene film.

SEPARATION METHOD AND SEPARATION DEVICE

A separation method includes a separation step in which a treatment target electrode including a current collector and an electrode mixture is treated with an ultrasonic wave in water (a treatment liquid) while the frequency of the ultrasonic wave is swept in order to separate the current collector and the electrode mixture from each other. A separation device includes a separation unit that treats the treatment target electrode with an ultrasonic wave in water to separate the current collector and the electrode mixture from each other and a controller that controls the separation unit such that the ultrasonic treatment is performed while the frequency of the ultrasonic wave is swept.

PROCESS IMPROVING ADHESION BETWEEN KETONE ETHYLENE ESTER/POLYVYNIL CHLORIDE ROOF MEMBRANES AND RUBBERIZED TAPE

A novel process for ensuring adequate adhesion between a ketone ethylene ether (KEE) and liquid polyvinyl chloride (PVC) roofing membrane and rubberized tape. The process can be used for roofing membrane repair, maintenance, and reinforcement. The present process uses a plasticizer primer comprising phthalate to coat the KEE/PVC roofing membrane, which has been shown to improve the adhesion to rubberized tape, allowing for good adhesion and increasing the lifespan of the repair, maintenance, and reinforcements.

BARRIER PAPER PACKAGING FILM

A paper-based packaging film comprising a fiber-based component, a polymeric film comprising a thickness from 2 micron and 8 micron, the polymeric film coated with a barrier material comprising a metal, a metal oxide or an inorganic oxide, a layer comprising a heat sealable polymer, and an adhesive layer located between the fiber-based component and the barrier material. The polymeric film is one of oriented polyester film, oriented polylactic acid film, polyester, polylactic acid, ethylene vinyl alcohol copolymer and polyvinyl alcohol copolymer, and the total composition of the paper-based packaging film includes a fiber content greater than 80%, by weight.