Biodegradable Materials for F&B Packaging

Insulated food containers that preserve food quality, stack well, have audible snap closures, and are compostable. The containers have a base and cover that snap together with protrusions and recesses. The base and cover have angled sides that form an interference fit. When the cover is removed, the interference snaps the protrusions into the recesses with an audible snap. The containers are insulating, stackable, and made from compostable materials. The containers can be used for transporting and cooking food without sogginess or leaks.

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Method for producing biodegradable and compostable containers and packaging using agricultural and food waste as starting material. The method involves mixing the waste with a plasticizer, hydrothermal treatment to modify the components, and thermoforming to shape the material into containers. The resulting containers have high biodegradability and compostability due to using waste with specific fiber, lipid, protein, and carbohydrate content ranges. The method enables sustainable production of biodegradable packaging without additional waste or emissions.

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Fully biodegradable and compostable product packaging that reduces waste sent to landfills and has a lower environmental impact compared to traditional packaging. The packaging is made entirely of biodegradable, compostable, and recyclable materials. It includes a biodegradable box, biodegradable filler material, biodegradable product, and biodegradable adhesive. The packaging can be fully biodegraded and composted, unlike conventional packaging which often contains non-biodegradable materials. The use of biodegradable components allows the entire packaging assembly to be biodegraded and composted, reducing waste in landfills. The biodegradable adhesive used to join the box panels is also biodegradable. The filler material, product, and adhesive all break down naturally.

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Biodegradable foam made from natural polymers that can be formed using microwave, RF, or heat activation. The foam is made by mixing a biological polymer like chitosan, a secondary polymer, blowing agent, plasticizer, nucleating agent, and liquid medium to create a slurry. When exposed to microwave, RF, or heat, the slurry expands and solidifies into a cellular foam. The foam properties like density, compressive strength, and energy absorption are tuned by adjusting the slurry composition. The foam can be used as packaging material that is biodegradable, compostable, and recyclable.

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A compostable container made from paperboard with a barrier coating on the inside that contains natural polymers, esters, or rosins. The coating has at least 70% of these natural materials. The container seals by overlapping regions on the inside and outside with adhesive applied to less than 10% of the surface area. The paperboard core is mostly bleached pulp with less than 1% wet strength agents. This allows a compostable container with high barrier properties against liquids, fats, and aromas, and without synthetic plastics.

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Preparation method for packaging container that reduces the negative influence on the environment and has good plasticity, strength and durability. The method includes adding polylactic acid, starch-based material and polyhydroxyalkanoate into a stirring container according to weight percentages, heating and stirring at 70-90 deg.C until being uniformly mixed, and then heating and stirring at 50-70 °C until being mixed uniformly.

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Porous wet natural foaming gel soft material for transportation of fresh food that provides high humidity, cushioning, and minimal damage to delicate items. The material is made from natural ingredients like starch, protein, and alginate. It has a water content of over 90% and forms a soft, spongy gel. The high water content allows it to maintain a humid environment for fresh produce during transport. The gel also has good cushioning properties to prevent damage to delicate items like fruits and fish. The material is prepared by foaming a starch-protein solution with an alginate compound, then crosslinking it. The gel has properties like low friction, high elasticity, and good thermal insulation. It can replace air-dried packaging materials for fresh food transportation as it provides the required humidity and cushioning without gaps or damage.

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A compostable food container, especially for pizza, that overcomes limitations of existing containers in terms of preserving food quality, facilitating transportation, being reusable, and being suitable for heating and storage. The container has a unique shape with an inner compartment that conforms to the pizza's shape, preventing the pizza from sliding around. The container is also made of biodegradable materials. The design allows reuse, heating in ovens/microwaves, and storage in refrigerators/freezers. It is compostable and avoids issues like paper containers leaching toxic chemicals into food.

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Biodegradable microwave susceptor for cooking food items in a microwave oven using biodegradable materials. The susceptor is made by laminating a metallized biodegradable film (like cellophane) with a metallic layer. The metallized areas provide microwave absorption while unmetallized areas prevent overheating. This allows targeted heating and browning of food without contaminating it with non-biodegradable plastics. The biodegradable susceptor can be incorporated into microwavable food packaging to replace conventional non-biodegradable microwave susceptors.

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A casing for protecting food and beverage products that provides airtight storage while still allowing easy dispensing. The casing has a side panel part with sealing margins that overlap and are sealed to form flanges extending outward. A band surrounds the flanges and is also sealed. This creates a tight seal around the product inside. The band can have features like notches, pre-cuts, and opening systems. The casing can be made by sealing the band to the side panels in steps. The flanges provide an airtight seal and the outward extension prevents collapsing.

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A method to make biodegradable packaging materials using compost and food waste. The method involves collecting compost and food waste, crushing it, extruding and dehydrating it, baking and sterilizing it, adding a binder, mixing, extruding again, and shaping into packaging material. The steps are designed to process compost and food waste into a material suitable for buffering and protecting products during shipping. It provides a sustainable alternative to traditional packaging materials like corrugated paper.

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A natural food coating using rosemary extract as an alternative to plastic wraps and other synthetic coatings. The coating solution is made by infusing rosemary leaves to extract compounds like carnosol, carnosic acid, and rosmarinic acid. These antioxidant-rich extracts are then combined with other ingredients like calcium chloride, vitamin E, ascorbic acid, glycerol, and carrageenan to create a viscous coating solution. This natural coating adheres to food surfaces and can be used to preserve and protect food without synthetic wraps.

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Biodegradable and sustainable bottle for liquids that addresses the issues of cost, performance, and environmental impact compared to conventional petroleum-based plastic bottles. The bottle is made from biodegradable bioplastic for the neck section and thermoformed pulp for the shoulder and body sections. This allows using stronger bioplastic for the critical neck sealing area while leveraging the strength of pulp for the rest of the bottle. The bottle can be made from biodegradable materials that are sustainable and can biodegrade after use. The bottle can have a biodegradable lining and a biodegradable cap made from the same material as the neck section. The bottle can be used for storing and consuming liquids like beverages or inedible products.

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Method to render cellulosic materials like paper more hydrophobic and oleophobic without sacrificing biodegradability or recyclability. The method involves treating cellulosic materials with saccharide fatty acid esters (SFAEs) that bind directly to cellulose. This provides increased hydrophobicity/oleophobicity while maintaining biodegradability/recyclability. The SFAEs can be applied to cellulose fibers or preformed materials. The binding reaction can be done at elevated temperatures, using radiation, catalysts, or a combination. The SFAEs are present in sufficient concentration to cause contact angles over 90 degrees or significant force of rupture resistance when wet.

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Biodegradable food container with reduced plastic content that can be used for liquid foods and is recyclable or biodegradable. The container has an inner layer made of biodegradable polyhydroxyalkanoate (PHA) and an outer layer made of cellulosic fibers like paper. This allows separating and recycling/biodegrading the inner PHA layer after use while keeping the outer paper layer. The inner PHA layer provides barrier properties for liquid containment, while the outer cellulosic layer provides strength and hand holding. The container can be produced by laminating the PHA and cellulosic layers.

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Eco-friendly product packaging container that reduces environmental impact compared to plastic containers. The container uses paper pockets instead of plastic to hold products. The container has a plate-shaped substrate with paper pockets protruding from one or both sides. The pockets have product storage spaces and edges that attach to the substrate. The pockets can have printed designs and eco-friendly coatings. The substrate can be made of laminated cardboard. The pockets can have features like windows, supports, and fixing bands.

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A method for manufacturing eco-friendly packaging containers using biodegradable materials that are harmless to the environment and human health. The method involves cutting a base paper into a specific shape, assembling it into a hexagonal container with an open top, coating the container with a solution of biodegradable polymer resin, and curing the coating to form a protective layer. This provides an eco-friendly packaging container that is biodegradable, recyclable, and has improved physical properties like water and oil resistance compared to traditional containers.

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Bio-based biodegradable packaging material that reduces dependence on petroleum and improves sustainability compared to traditional petroleum-based packaging. The material is made from starch-based plastics, plant fibers, sorbitol, light stabilizers, antioxidants, and additives like polytetrafluoroethylene, fatty alcohol polyoxyethylene ether, oleic acid amide, titanium dioxide, and modified silicon dioxide. The additives improve properties like moisture resistance and gas barrier while maintaining biodegradability.

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A method and apparatus for manufacturing biodegradable, compostable, and recyclable food packaging that is impermeable, rigid, and can withstand high temperatures. The packaging is made by coating a shapeable biodegradable material like fibrous plant material with a biopolymer. The shapeable material is formed into the final packaging shape, then coated with the biopolymer. The coating is applied using a spray system with separate air supplies for atomization and distribution. This allows precise control of coating thickness. The coated packaging is then dried.

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Biodegradable packaging that protects products from damage during shipping while also being compostable. The packaging consists of an outer biodegradable bag with an inner bag inside. The outer bag has a cut section on the top. When the packaging is opened, the inner bag falls out through the cut section. This allows the packaging to be used as a waste bag after removing the product. The cut section also allows garbage to be added before closing the top, which can be sealed by tying the open end of the outer bag. The compostable material degrades in soil when buried. The inner bag protects the product during shipping and the outer bag degrades along with the product waste.

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