Biodegradable Adhesives for F&B Packaging

Compostable and recyclable packaging wrap for shipping items that provides protection while being environmentally friendly. The wrap is made primarily of compostable or recyclable materials like starch, and can be rolled for storage or transportation. The wrap consists of flexible films with compostable pads sandwiched between them. This allows rolling the wrap around the item to cushion and protect it during shipping, while all components can be composted or recycled after use.

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A biodegradable dispersion glue with enhanced performance properties for various applications. The glue combines reactivability, sealability, and biodegradability, making it suitable for a wide range of uses including paper, packaging, coatings, and textiles. It provides barrier properties against water, vapor, aroma, and oxygen, as well as oil and fat barrier protection, paint abrasion resistance, and improved colorfastness. The biodegradable nature of the glue enables safe disposal without environmental harm.

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A food-grade multilayer film for flexible packaging of semi-liquid products, particularly for pouches and doypacks, that combines barrier properties with mechanical performance. The film comprises a cellulose-based barrier layer on the outer surface and a bio-based Poly(butylene succinate-co-butylene adipate) (PBSA) layer on the inner surface, with both layers integrated into a single, food-grade multilayer structure. The film achieves superior barrier properties, including oxygen transmission and water vapor transmission rates, while maintaining mechanical integrity and biodegradability. This innovative multilayer design enables the creation of flexible packaging that meets the demands of semi-liquid products while maintaining their integrity and shelf life.

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A method for producing gas-tight packaging materials that utilize a biodegradable first coating and a second waterproof layer. The first coating is applied to a cellulose-containing substrate using a flowable solution, followed by a second layer comprising predominantly animal or vegetable waxes. This dual-layer approach enhances the packaging's gas-tightness and water resistance by combining the natural properties of cellulose with the mechanical strength of waxes. The waxes, particularly linseed oil-based waxes, provide superior barrier properties against moisture and air while maintaining the substrate's integrity.

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A bio-based adhesive with enhanced bonding strength through hydrogen bonding, achieved through the controlled formation of a dense hydrogen-bonded network within the adhesive structure. The preparation involves a two-step process: mixing tannic acid and citric acid to form a solution, followed by a gelation step where the solution reaches its viscosity threshold. This dense hydrogen bonding network significantly increases the adhesive's interfacial bonding strength, with optimal bonding performance achieved at specific concentrations of the two acids. The adhesive can be recycled and reused multiple times, demonstrating its durability and resistance to environmental degradation.

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Water-soluble polymer composition and its use for food packaging applications. The composition comprises a polymer and a salt, where the salt is a conjugate acid-base pair. The conjugate acid-base pair comprises a weak to moderately strong acid and its conjugate base, with the conjugate base having a pKa between 3 and 7. This conjugate acid-base pair acts as a buffer system in the polymer, enabling the polymer to maintain its water solubility and biodegradability while maintaining its mechanical properties.

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Adhesive element comprising a carrier substrate and an adhesive layer arranged at the carrier substrate. The adhesive element comprises at least one recycled material and/or at least one material formed from renewable raw materials and/or at least one biodegradable and/or marine degradable material.

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Compostable cornstarch-based packaging that can contain items without using petrochemical plastics. The packaging is made from compostable materials that biodegrade in composting environments. This reduces environmental pollution compared to conventional plastic packaging that often ends up in landfills. The cornstarch-based compostable packaging aims to provide a more sustainable and eco-friendly alternative to traditional packaging materials.

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Paper-based wrap material for packing fatty, oily or greasy products like butter, margarine or cheese, without using aluminum foil. The wrap is made from specific layers: outer layers of water-based natural coatings, an inner paper layer, and optional inner white coatings. The water-based coatings provide oxygen barrier and grease resistance. The paper layer prevents infusion. The absence of aluminum and plastics enables recyclability.

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Compostable or recyclable packaging wrap for shipping that provides protection to fragile items while being environmentally friendly. The wrap is made primarily of biodegradable materials like starch, compostable films, and compostable padding. It allows rolling for compact storage and easy transport. This compostable wrap replaces conventional plastic wraps that cannot be composted or recycled.

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Biodegradable adhesive for securing packages on pallets without using plastic wrap or other protection systems. The adhesive is made from natural gelatin (gelatine) and is biodegradable. It replaces synthetic resin-based adhesives and waxes. The gelatin adhesive sticks packages together on pallets to prevent shifting during transport. It is repulpable and compostable, allowing recyclable and compostable packaging materials to be used without sticky residue issues.

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Compostable and recyclable packaging wrap for shipping items that is flexible and rollable for compact storage. The wrap is made primarily of compostable or recyclable materials like starch, compostable films, and compostable pads. This allows the wrap to protect the item during shipping and then decompose or be recycled after use. The rollable design saves space during storage and transportation.

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A single-walled disposable cooler made from biodegradable, compostable, and recyclable materials like pulp instead of non-biodegradable polystyrene. The cooler has a body with a base and vertical walls that define an interior cavity. The walls can be formed seamlessly from the base edge or with seams. A lid covers the opening. The pulp material allows rapid decomposition without toxic residues, making the cooler eco-friendlier than foam coolers.

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Compostable food wrap that can be used to package food, whether hot or cold, and especially food from “fast food” type establishments. The wrap includes a first layer of paper material, a second layer of paper material, and a series of coatings between the paper materials.

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Aqueous polyurethane dispersion adhesive for producing biodegradable composite foils that degrade in home compost conditions. The adhesive contains monomers with ionic groups, specifically diisocyanate, polyesterdiol, and bifunctional carboxylic acids, which enable rapid degradation of the composite material upon microbial action. The adhesive-bonded composite foils exhibit complete biodegradation within 180 days at 25°C under aerobic composting conditions, meeting the stringent requirements for compostability.

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Natural-based biodegradable adhesives for non-woven applications, particularly in pressure-sensitive adhesives (PSA) for baby diapers, tapes, labels, and packaging. These adhesives exhibit superior performance characteristics, including water resistance, removability, and compostability, making them ideal for post-press bonding applications in folding units and mailing machines. The adhesives contain natural components like gelatin, glycerin, and sugar/corn syrup, which provide long open time workability and warm water cleanability. They also possess excellent thermal stability and resistance to corrosion, enabling use in applications requiring non-corrosive equipment.

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A biodegradable, biocompatible adhesive composition with high mechanical strength. The adhesive is made by combining an amphiphilic block copolymer called OL with tannic acid (TA). The OL copolymer has a hydrophobic PLA block and a hydrophilic PEO block. The adhesive composition has good adhesion properties due to the hydrogen bonding between TA and the PEO block. The TA also increases the viscosity of the adhesive. The adhesive is biodegradable because it contains TA which breaks down in natural environments. The adhesive composition can be prepared by mixing the OL copolymer and TA in water.

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Connecting a biodegradable fiber product like a receptacle to a biodegradable connection element in a way that is reliable, permanent, and allows the entire product to biodegrade. The connection involves reinforcing the opening area of the fiber product with an injection molded piece. This prevents the fiber product from breaking when connected to the biodegradable element. The reinforced opening allows the fiber product to be made entirely from biodegradable materials, like cellulose, instead of using synthetic plastics. The reinforced connection ensures durability while still allowing the entire product to break down when composted.

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A biodegradable and/or compostable food wrap made from multiple layers of biodegradable materials that provides insulation and moisture barrier properties. The wrap has a base sheet, a water-resistant coating, an oil-resistant coating, and an adhesive layer. The adhesive layer has voids or pockets that trap air for insulation. The wrap can be made from paper, polyethylene, or other biodegradable materials.

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Adhesive composition for eco-friendly biodegradable food packaging that combines dextrin, gum, and alkanediol to create a water-removable adhesive. The composition achieves superior adhesion properties while minimizing environmental impact through its unique molecular structure, which enables controlled release of the adhesive components during manufacturing and during use. The adhesive composition is particularly suitable for food packaging applications where food safety and environmental sustainability are critical.

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A multifunctional solvent-free adhesive comprising a phenolic compound and polyethylene glycol (PEG) that exhibits superior performance in extreme environmental conditions such as low temperature, vacuum, and organic solvents. The adhesive features a dense, micron-scale, and smooth surface structure formed through hydrogen bonding between the phenolic compound and PEG molecules. This supramolecular binder provides enhanced adhesion properties at low temperatures, as well as resistance to drying and swelling. The adhesive also demonstrates antibacterial properties against both Gram-negative and Gram-positive bacteria, and is biocompatible with mammalian cells.

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Compostable hot melt adhesive for beverage cups with enhanced performance characteristics, particularly for double-walled cups. The adhesive comprises a polylactide homopolymer, a sulfonated copolyester, and a biodegradable plasticizer. The adhesive achieves superior heat resistance, tack power, and compostability while maintaining molten flow characteristics comparable to traditional non-compostable hot melts. The formulation includes a specific balance of molecular weight, plasticizer concentration, and sulfonate content to optimize performance across a wide temperature range.

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Biodegradable sachet for storing solid consumer products that combines a moisture barrier with compressive load resistance. The sachet comprises a biodegradable and/or home compostable sachet comprising a front film and a back film comprising: (a) a front middle layer and a back middle layer comprising a paper having greater than 85% cellulose content; (b) a front inner layer joined to the front middle layer and a back inner layer joined to the back middle layer wherein the front inner layer and back inner layer comprises an inner layer material selected from the group consisting of polyvinyl alcohol, polybutylene succinate, polybutylene succinate adipate, polyhydroxylalkonate, polyvinylidene chloride, carnauba wax, biodegradable thermo-plastic starch, and combinations thereof; wherein front inner layer and back inner layer being permanently joined around a perimeter to form a seal, the seal forming a compartment adapted for storing a solid article comprising an open cell foam comprising: from about 10% to about 40%, by total weight of the article, of a water-soluble polymer; from about 5% to about 80%, by total weight of the article, surfactant selected from the group

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Compostable food packaging material for products like energy and protein bars that avoids the use of non-compostable materials. The packaging is made by cold sealing two layers - a clear film with reverse printing and a metalized foil - using a compostable cohesive glue. This allows compostable packaging for food items that can break down in composting environments.

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Environmentally friendly protective wrapping for products that uses expandable adhesive between layers to provide padding. The wrapping is made by applying a water-based expandable adhesive (WBHEA) between layers of a continuous web substrate. The adhesive contains heat-expandable microspheres that swell when heated. When the wrapped product is subjected to heat, like RF energy, the adhesive expands to create padding between the layers. The expandable adhesive allows uniform padding of the product without compression. The wrapping can be made on a continuous manufacturing line using two webs supplied from a source. The wrapping can also be used to make open-ended pouches by joining multiple wrapped webs.

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A water-based disposable degradable glue for paper straws that is resistant to boiling water and complies with food safety regulations. The glue is made by combining specific components like vinyl acetate-ethylene copolymer emulsion, pure acrylic emulsion, water-based epoxy resin, water-based polyurethane, polyvinyl alcohol, polyvinyl butyral, adipaldehyde, oxidized starch, chitosan, and hydroxypropyl methylcellulose. The glue composition allows the paper straws to be boiled without degrading or melting the glue.

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Biodegradable food packaging with improved mechanical properties like tear resistance and thermoformability compared to conventional bioplastics. The packaging consists of a low cost, thermoformable structural layer made from biodegradable polymers like polyhydroxyalkanoates (PHAs). Optional layers for barrier, adhesion, and direct food contact are also made from biodegradable polymers. The layers provide additional properties like barrier, adhesion, and tear resistance to the structural layer. The packaging is made by electrodynamic processes like electrospinning. This allows creating biodegradable containers with high barrier and functionalities without using non-biodegradable adhesives.

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Eutectic solvent, environmentally friendly adhesive, and preparation method for reducing adhesive use in packaging operations. The eutectic solvent is a novel, environmentally friendly adhesive component that replaces traditional solvents in adhesive formulations. The eutectic solvent composition is characterized by its unique hydrogen bonding characteristics, enabling effective adhesive bonding while minimizing environmental impact. The preparation method involves combining the eutectic solvent with other environmentally friendly raw materials to create a novel adhesive.

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A water-separable pressure-sensitive adhesive (PSA) that eliminates the need for high-temperature and alkaline conditions for removal. The adhesive composition comprises lysine, malic acid, and water, with the lysine and malic acid present in a salt solution. The composition exhibits unique properties that prevent precipitate formation during aqueous separation, enabling the adhesive to be effectively removed without degradation.

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Polymer compositions, compounds, processes, and methods of use of the polymers for adhesives, bioadhesives, and biodegradable consumer plastics. The compositions comprise a polymer comprising: (i) a repeating unit represented by Formula (I); and (ii) a repeating unit represented by Formula (II) or Formula (III); (iii) a repeating unit represented by Formula (IV).

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A novel adhesive comprising a small molecule component derived from natural sources, such as trehalose, citric acid, glucose, and fructose. The adhesive exhibits superior biocompatibility, non-toxicity, and low viscosity compared to conventional adhesives. The adhesive formulation combines these natural compounds in a controlled ratio to achieve optimal adhesive properties.

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Compostable or recyclable packaging wrap for shipping items that can protect the item during transit and is environmentally friendly. The wrap is made primarily of compostable or recyclable materials like starch, compostable films, and compostable pads. The starch strip can be rolled up for compact storage. The wrap is flexible to allow rolling for easy transportation and storage.

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A method for preparing oxygen-barrier and degradable plastic film through a novel combination of starch-based biodegradable materials and a specific treatment process. The method involves creating a biodegradable masterbatch comprising a starch-based material and a Pullulan polysaccharide, which is then extruded and blown into a film. The starch-based material provides biodegradability, while the Pullulan polysaccharide enhances the film's oxygen barrier properties. The treatment process involves specific conditions that selectively degrade the starch component while maintaining the Pullulan component, resulting in a film with both excellent biodegradability and oxygen barrier properties.

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An environmentally friendly adhesive for food packaging that achieves strong bonding through a combination of natural and biodegradable components. The adhesive consists of Konjac Flying Powder, Tea Polyphenol, Allicin, Water-Soluble Polyvinyl Alcohol, Epoxy Soybean Oil, Urotropine, Ethyl Acetate, Lecithin, Glycerol, Sodium Dodecylsulfonate, Hydroxypropylmethylcellulose, and Hydrogenated Osmanthus Oil.

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Multi-layer compostable packaging laminate that enables efficient composting through its unique adhesive pattern. The laminate consists of three layers: a biopolymer base, a printable adhesive layer, and a barrier layer. The adhesive layer is engineered to have a composition of less than 1% of the total laminate weight, with regions separated by non-adhesive areas. This pattern enables the adhesive to facilitate compostability while maintaining structural integrity. The adhesive pattern can be optimized through variations in adhesive thickness and adhesive composition. The laminate achieves compostability through both industrial and home composting processes, with certification bodies allowing up to 5% non-compostable components.

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A high-performance adhesive for environmentally friendly applications that combines exceptional mechanical properties with low toxicity. The adhesive comprises a combination of polyurethane and polyvinyl acetate polymers, which form a strong and durable bond while minimizing environmental impact. The formulation enables high-performance bonding in a wide range of applications, including structural components, non-configuration parts, and special adhesives, while meeting stringent environmental standards.

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A biodegradable adhesive and tape for packaging that enables reliable closure while facilitating recycling of cardboard packaging materials. The adhesive contains a biodegradable gum arabic-based compound with a sugar content of 4g per gram, which enhances its adhesive properties. The adhesive tape features a biodegradable paper or film backing with a removable non-stick foil, allowing for efficient storage on a roll. This innovative combination addresses the packaging industry's recycling challenges by providing a biodegradable adhesive that can be easily removed from the packaging material, while the tape's non-stick foil prevents adhesive residue from interfering with the recycling process.

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