Filler Premixing for Packaging Materials

Hybrid clamshell container for packaging products that has a base made of a cellulosic material like paperboard and a cover made of a plastic material. The container has a hinged lid that folds over and clips to the sides in the closed position. This allows the strength and recyclability benefits of paperboard for the base while using plastic for the cover to improve durability and stackability. The container can be formed by manipulating a blank with separate paperboard and plastic components that join together.

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Biodegradable and compostable polymer compositions for flexible food packaging films that have low water vapor permeability. The compositions contain a mixture of biodegradable polyesters, including rigid polyesters like PBS, PLA, and PHA, as well as flexible polyesters like PBAT and PCL. The compositions also have small amounts of hydrophobic additives like behenamide. The blends have desirable mechanical properties like high modulus, strength, and elongation for packaging applications.

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Adhesive structure for packaging boxes that improves adhesion strength between side plates by using different adhesives with complementary properties. The structure involves two adhesive types, like hot melt and water-based emulsion, applied side by side on the side plate folding surfaces. An adhesive hole is formed between the adhesive sections. The holes are filled with either adhesive type to increase adhesion area. This leverages the advantages of each adhesive type, like heat resistance vs water resistance, while mitigating their weaknesses.

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Multilayer substrate for packaging materials with improved gas barrier properties and adhesion between layers. The substrate has a stretched polypropylene layer sandwiched between an outer layer and an inner coating layer. The coating layer contains a resin with polar groups to improve adhesion of subsequent layers like vapor deposited films. This prevents delamination and improves gas barrier performance compared to polypropylene-only substrates. The multilayer substrate can be used in packaging applications and the packaging material is made by laminating the substrate with additional layers like vapor deposited films and sealant layers.

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Recyclable packaging material for dense item packaging applications like pet food bags that can be processed on conventional packaging equipment. The material is a multi-layer structure with a reinforcing layer made of polyethylene textile sandwiched between other polyethylene layers like film and sealant. This allows recyclability since the layers are all polyethylene. The reinforcing layer provides strength and puncture resistance. The layers are adhered together with tie layers.

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A three-layer structure discharge nozzle for producing packaging bands with improved tensile strength at a lower cost. The nozzle is used in a device that manufactures packaging bands. The bands have a three-layer structure with an outer layer made of a high-tensile strength material and an inner layer made of a lower cost material with lower tensile strength. This allows using a more expensive, high-performance material for the outer layer where it contacts the product, while the inner layer can be a cheaper material with lower strength. This improves band strength and quality compared to using a single layer, without requiring multiple colors or expensive materials throughout the band.

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A food packaging box designed to hold and protect food items during transport and storage. The packaging box is specifically designed for food applications and aims to provide optimal protection and preservation of the food inside. The box may feature features like reinforced corners, shock-absorbing materials, ventilation holes, and sealable closures to prevent moisture and contaminants from entering. The goal is to create a food packaging box that ensures food safety, freshness, and quality during transportation and storage.

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Biaxially stretched polyamide film with improved properties for food packaging and alcohol evaporants. The film has a specific composition and structure to balance properties like bending pinhole resistance, puncture strength, dimensional stability, and ethanol penetration. It contains polyamide 6 as the main component, with dispersed particles of a resin like PBAT, PEE, or POE having a maximum diameter of 1 μm or more. This provides plane alignment and crystallization parameters that enhance performance.

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Functional reinforcing paper with insect repellent, antibacterial, deodorizing, moisture proofing, and freshness maintaining properties for improved packaging quality. The paper has a coating with a functional material like insect repellent, antibacterial agent, deodorant, freshness retainer, or desiccant. It can also be used as a packaging material itself with contact surfaces containing the functional material. The coating enhances strength, water resistance, and oil resistance.

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Eco-friendly internal packaging material made from a biocomposite of mycelium, pine needles, wheat straw, and wood powder. The composite is reinforced with pine needles and grown using Pleurotus ostreatus mycelium. It provides cushioning and protection for fragile items like electronics while being fully biodegradable. The composite is made by inoculating the substrate with mycelium, sterilizing, growing, and heat treating to cure.

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Innovative packaging system for eyewear like sunglasses and spectacles that balances product protection and display. The system uses a transparent display panel integrated into a rigid, impact-resistant outer casing. The casing is made of high-strength polymer with shock-absorbing properties and reinforced layers. The display panel is scratch-resistant acrylic or tempered glass. Ergonomic design securely holds the eyewear. Features like UV sterilization, environmental sensors, and biodegradable materials enhance protection and sustainability.

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Thermally insulated, waterproof, and high-strength packaging bag that provides improved protection for goods while reducing wrinkling and damage. The bag uses a composite structure with outer and inner paper layers sandwiched between insulating foam layers. Elastic adhesive is used to bond the layers. The outer layer has a convex buffer structure that disperses pressure. The insulating foam has a gradient height convex structure to prevent wrinkling. The adhesive is a polyurethane emulsion with thickener, wetting agent, and silane coupling agent for strength and elasticity.

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Flexible packaging film that provides robustness for bag-in-box and spouted pouches while allowing recyclability. The film has three layers: a biaxially oriented polyamide cap layer, a core layer, and a blown polyethylene seal layer with a compatibilizer. This combination provides strength for packaging rigors while having recyclable components. The polyamide cap and polyethylene seal can be recycled separately.

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A recyclable pouch that can be suspended and reinforced near the hole to prevent tearing. The pouch is made of fibrous material like paper or cardboard. A strip of fibrous reinforcement is added between the front and rear walls of the pouch near the hole. This concealed reinforcement increases strength near the hole where it is susceptible to tearing. The reinforcement can be joined to the walls using heat activated adhesive for added durability.

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Dry food packaging laminate and bag with improved impact resistance, heat sealability, and bag-making processability. The laminate has a base layer made of a biaxially oriented polypropylene film with high elastic modulus (500 MPa or more at 100°C) to prevent bag deformation during filling. The heat seal layer is mainly polypropylene with an ethylene-α-olefin copolymer having a melting point of 125-145°C and a 973cm-1 peak intensity divided by 973cm-1 peak intensity of 0.1-0.3. This balance of properties provides good impact resistance, low-temperature heat sealability, and bag-making processability for recyclable, environmentally friendly food packaging.

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Stretch blow-molded articles like toner bottles that prevent degradation of the contained toner powder and prevent wax transfer to the bottle surface when made from recycled PET. The molded articles contain a polyester, wax, and an inorganic layered double hydroxide or zeolite. The wax is adsorbed by the inorganic compound instead of transferring to the bottle surface, preventing chemical attack on the toner particles inside. This prevents deformation of toner particle surfaces when stored in the bottle. By using recycled PET, it reduces environmental impact compared to virgin PET.

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Stretch blow-molded article, like toner bottles, that prevents degradation of accommodated toner and reduces chemical attack on toner particles when filled. The blow-molded article contains a polyester resin, wax, and an inorganic compound like layered double hydroxide or zeolite. The wax adsorbs charged toner particles during recycling. The inorganic compound prevents wax transfer to the bottle surface during blow molding. This prevents deformation of toner particles contacting the inner surface.

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Stretch blow-molded articles, like toner bottles, that prevent degradation of accommodated toner particles. The molded articles contain a combination of a styrene-based resin, a wax, and either an inorganic layered double hydroxide or zeolite. The zeolite or layered hydroxide adsorbs the wax, preventing it from transferring to the molded article surface. This prevents deformation of toner particles in contact with the molded article surface. The adsorption of wax by zeolite or layered hydroxide suppresses chemical attack on toner particles.

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A composite support element for packaging heavy products like white goods that provides durability during transportation and stacking. The support element has a base made from cellulosic materials like urea formaldehyde, melamine formaldehyde, or melamine urea formaldehyde glues. This base is covered by layers of paper. An additional layer of metal can be added between the base and paper layers or outside them to further reinforce the support element.

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A biodegradable packaging material made from chicken feathers and a biodegradable polymer called polybutylene adipate terephthalate (PBAT). The process involves extracting keratin from chicken feathers and combining it with PBAT to create a biodegradable composite film for packaging applications. The goal is to replace conventional plastics with a sustainable and compostable alternative that reduces waste and environmental impact.

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