WO2022072744A1 - Emballages, ustensiles et contenants en polyoléfine biodégradable d'origine renouvelable - Google Patents

Emballages, ustensiles et contenants en polyoléfine biodégradable d'origine renouvelable Download PDF

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Publication number
WO2022072744A1
WO2022072744A1 PCT/US2021/053037 US2021053037W WO2022072744A1 WO 2022072744 A1 WO2022072744 A1 WO 2022072744A1 US 2021053037 W US2021053037 W US 2021053037W WO 2022072744 A1 WO2022072744 A1 WO 2022072744A1
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WO
WIPO (PCT)
Prior art keywords
renewably
sourced
polyolefin
bowl
packaging
Prior art date
Application number
PCT/US2021/053037
Other languages
English (en)
Inventor
Randy Soibel
Robert Tammara
Original Assignee
Enlightened Product Solutions, LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US17/060,058 external-priority patent/US20210095098A1/en
Priority claimed from US17/449,388 external-priority patent/US11905396B2/en
Application filed by Enlightened Product Solutions, LLC filed Critical Enlightened Product Solutions, LLC
Publication of WO2022072744A1 publication Critical patent/WO2022072744A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L101/00—Compositions of unspecified macromolecular compounds
    • C08L101/16—Compositions of unspecified macromolecular compounds the macromolecular compounds being biodegradable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0207—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/22—Boxes or like containers with side walls of substantial depth for enclosing contents
    • B65D1/26—Thin-walled containers, e.g. formed by deep-drawing operations
    • B65D1/28—Thin-walled containers, e.g. formed by deep-drawing operations formed of laminated material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/34—Trays or like shallow containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
    • B65D3/02—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines characterised by shape
    • B65D3/06—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines characterised by shape essentially conical or frusto-conical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/02—Removable lids or covers
    • B65D43/0202—Removable lids or covers without integral tamper element
    • B65D43/0214—Removable lids or covers without integral tamper element secured only by friction or gravity
    • B65D43/0222—Removable lids or covers without integral tamper element secured only by friction or gravity only on the outside, or a part turned to the outside, of the mouth of the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/46—Applications of disintegrable, dissolvable or edible materials
    • B65D65/466—Bio- or photodegradable packaging materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/3438—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated by steaming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/3446—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated by microwaves
    • B65D81/3453—Rigid containers, e.g. trays, bottles, boxes, cups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • B65D85/72—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for for edible or potable liquids, semiliquids, or plastic or pasty materials
    • B65D85/78—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for for edible or potable liquids, semiliquids, or plastic or pasty materials for ice-cream
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G21/00—Table-ware
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00064—Shape of the outer periphery
    • B65D2543/00074—Shape of the outer periphery curved
    • B65D2543/00092—Shape of the outer periphery curved circular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018—Overall construction of the lid
    • B65D2543/00259—Materials used
    • B65D2543/00314—Combination, e.g. laminates, several different materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/0049—Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
    • B65D2543/00527—NO contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00537—Contact between the container and the lid on the inside or the outside of the container on the outside, or a part turned to the outside of the mouth of the container

Definitions

  • the invention relates to renewably-sourced and biodegradable packaging and, more specifically, to polyolefin packaging.
  • Packaging for cold environments or for cold goods can perform by holding the product while not deteriorating, delaminating, or becoming brittle at the anticipated temperature.
  • the packaging can perform at -78.5 °C.
  • the packaging can perform at -40 °C.
  • the packaging can perform at -18 °C.
  • Packaging that is to be used with frozen comestibles, particularly, dairy based frozen comestibles, the packaging can perform at room temperature (i.e. , 25°C) even when exposed to liquid (i.e., melted) food.
  • the packaging preferably cannot absorb liquid or become fragile or saggy when exposed to liquid.
  • Packaging for ice cream and gelato is made from nonrenewable and/or nonrecyclable materials.
  • the most common materials for packaging are closed cell extruded polystyrene foam (XPS), stainless steel, and polymer treated cardboard.
  • XPS is a petroleum-based product, which is a nonrenewable material.
  • Stainless steel is made with iron, which is a nonrenewable material.
  • Polyethylene treated carboard is not renewable because polyethylene is petroleum based and, therefore, is a nonrenewable material.
  • An additional problem with polyethylene coated cardboard is that the polyethylene cannot be economically separated from the cardboard. As a result, the entirety of the coated paper becomes nonrecyclable.
  • Packaging to be used with heated products is made with nonrenewable materials.
  • Pawlick et al. US Patent No. 8,302,528, describes a “Cooking Method and Apparatus.”
  • Pawick et al. states, “The containers 22, 122 and baskets 24, 24', 124, 124', 124" may be made of polymers, such as Polypropylene (PP) (e.g., Co-polymer Polypropylene), Crystallized Polyethylene Terephthalate (CPET), or any other microwave and food safe non-toxic material.”
  • PP Polypropylene
  • CPET Crystallized Polyethylene Terephthalate
  • Packaging to be used with heated food products can perform at 204 °C.
  • Packaging to be used with steam heat food products can perform at a temperature slightly above boiling (> 100 °C), for example 104 °C.
  • Plastics are materials formed by polymers and additives, characterized by high molecular weight. Their versatility makes them an essential material in different application; they are used in packaging (39.9 %), construction (19.8 %), the automotive industry (9.8 %), electronics and communications (6.2 %), agriculture (3.4 %), household leisure and sport (4.1 %), and other fields (16.7 %).
  • packaging polypropylene
  • LDPE low-density polyethylene
  • HDPE high-density polyethylene
  • PVC vinyl chloride
  • PU polyurethane
  • PETE polyethylene terephthalate
  • PS polystyrene
  • plastics are durable and resistant to degradation; this is the feature that makes them very attractive for many applications. However, these characteristics have adverse effects once plastic products are discarded. In 2015, 6300 Mt of plastic was produced; 9 % was recycled, 12 % was incinerated, and 79 % was landfilled or littered in the environment.
  • polyethylene and polypropylene are made from non-renewable sources.
  • the non-renewable sources used to form most polyolefins include petroleum, naphtha, and natural gas.
  • a line of renewably-sourced polyethylene and polypropylene by Braskem S.A. are sold under the trademark I’M GREEN®.
  • Biodegrading agents are additives to be mixed with polyolefin starting materials (i.e., pelletized polyolefins) to increase the biodegradability of polyolefins without reducing the performance and attributes of the polyolefin.
  • Biodegrading agents are sold under the trademark BIOSPHERE®.
  • Biodegrading agents are sold under the trade name ECM MASTERBATCH PELLETS.
  • the method begins with natural agricultural raw materials.
  • the natural agricultural raw materials originate from sugarcane bagasse, sugarcane straw, com straw, com cobs, and sorghum straw.
  • the natural agricultural raw materials can include residues of other agricultural crops, urban or industrial residues, as well as residues originating from fishing, animal breeding, or mining activities, such as, among others, beet, manioc, wheat, rice straw, peanut shells, coconut shells, wood kindling, wood chips, sawdust, charcoal, wax palm leaves, babassu palm residues, various types of grasses, leaves, and branches of some plants, residues of the process of production of vegetable oils, such as filter cakes obtained from the production oils of soy, of castor beans and plants, and of other oleaginous plants, recycled vegetable oils, animal fats, algae, recycled paper and paperboard, lignin and other residues from the paper and pulp industry originating from crops such as eucalyptus and pine, garbage, biogas derived from fermentation, gly
  • the renewable natural raw materials are fermented to form ethanol.
  • Various processes for fermenting particular raw materials can be applied.
  • sugarcane can be fermented using Saccharomyces cerevisiae yeast to produce ethanol and carbon dioxide.
  • ethylene is produced through dehydration of ethanol.
  • Processes for dehydrating alcohols to form ethylene are described in the following documents, which are hereby incorporated by reference: “Ethylene from Ethanol,” Scheeline et al., PEP Review 79-3-4, January 1980; US Patent No. 4,232,179;
  • An alternate or additional step includes generating synthesis gas by using a biomass gasification process.
  • the synthesis gas is used to produce methanol.
  • the methanol is used for the formation of propylene, directly or indirectly from the intermediate dimethyl ether, as described in the following patents: U.S. Patent No. 4,929,780, EP 448000, and US Patent No. 6,534,692.
  • the next step is transforming methanol and/or dimethyl ether into propylene, ethylene, and butylene.
  • the next step is to transform propylene, ethylene, and butylene to form renewably-sourced polypropylene and its copolymers, polyethylene and its copolymers.
  • Biodegrading agents which are also referred to as biodegradable additives, enhance the biodegradation of plastic by adding hydrophilic parameters to the polymer chain.
  • the hydrophilic parameters allow microbial enzymatic action to reduce the structure of the polymer by utilizing macromolecules within the plastic polymer.
  • the inclusion of biodegrading agents should not change the physical properties of the plastic.
  • the macromolecules are consumable by microbes. The consumption of the macromolecules by the microbes creates breaks in the chains of polyolefins and results in the degradation of the polyolefin.
  • the biodegrading agent should be mixed throughout the polyolefin. Microbes will breakdown carbon to carbon bonds that involve the biodegrading agent even when the biodegrading agent is spread throughout the polyolefin, including within the polyolefin. The consumption of the biodegrading agent increases the exposed surface area of the now-pitted polyolefin. Plastophillic microbes can attach themselves with pores of the polymer and are not limited to attaching to the surface of the polyolefin.
  • the biodegrading agent is hydrophilic.
  • the addition of the biodegrading agent makes the mixture more hydrophilic. Increasing the hydrophilicity of the mixture increases the biodegradation.
  • the biodegrading agent increases the biodegradability of the polyolefin by increasing hydrolysis, acidogenesis, acetogenesis, and methanogenesis.
  • Pro-oxidant additives increase the rate of both thermo-oxidation and photo-oxidation, resulting in a larger amount of low molecular extractable compounds. Microbial strains can then efficiently attack the carbon in these low molecular weight fragments of the large chain polymers.
  • Pro-oxidant additives are commonly used to enhance the rate of biodegradation of ethylene and polyethylene. High-molecular-weight polyethylene hinders the ability of microorganisms to naturally degrade the materials. Pro-oxidant additives have been effective in increasing the biodegradability of polyethylene by creating smaller fragments of the polymer.
  • Typical pro-oxidant additives are the transition metal complexes or transient metal ions, which are added to the plastic in the form of stearate or other organic ligand complexes.
  • the most common materials used as pro-oxidants are iron, manganese, and cobalt. Iron complexes increase the rate of photooxidation by providing a source or radicals for the initiation step in the process of creating smaller molecular weight fragments.
  • An object of the invention is to provide a method for making renewably- sourced biodegradable polyolefins.
  • the method begins with providing renewably- sourced polyolefins, which typically, but not necessarily, are pelletized.
  • the biodegradable agent is mixed and melted to form a resin mixture.
  • the molten resin mixture is shaped to the desired packaging shape. Injection molding can be used to shape the molten resin into the package shape, for example, a bottle-shape.
  • the biodegradable agent works in anaerobic conditions and does not require ultraviolet light to increase the biodegradation of the resin.
  • a further object of the invention is to provide renewably -sourced biodegradable packaging that is biodegradable.
  • the packaging can include renewably- sourced biodegradable polyolefins and a biodegradable agent.
  • suitable biodegrading agents are sold under the trademark BIOSPHERE® PLASTIC ADDITIVE.
  • the polyolefin/biodegradable-agent mixture is from ninety-eight to ninety-nine-and-five-tenths percent (98-99.5 %) by weight polyolefin and five-tenths to two percent (0.5-2 %) by weight biodegradable agent.
  • renewably-sourced biodegradable polyolefin packaging includes a renewably-sourced polyolefin and a biodegrading agent mixed with said renewably-sourced polyolefin.
  • the biodegrading agent increases biodegradation of the renewably-sourced polyolefin.
  • Examples of renewably-sourced biodegradable polyolefin are renewably -sourced polyethylene and renewably-sourced polypropylene.
  • the biodegrading agent forms an effective amount of the renewably-sourced-polyolefin/biodegrading-agent mixture.
  • the effective amount of the biodegradable agent in the of the renewably-sourced- polyolefin/biodegrading-agent mixture usually ranges 0.5% to 2.0% by weight.
  • the biodegrading agent anaerobically biodegrades the renewably-sourced polyolefin without using ultraviolet light.
  • a method for manufacturing renewably-sourced biodegradable polyolefin packaging is provided.
  • the first step is providing renewably-sourced polyolefin.
  • the next step is admixing a biodegrading agent with the renewably-sourced polyolefin to produce a resin mixture.
  • the biodegrading agent increases biodegradation of the renewably-sourced polyolefin.
  • the next step is melting the resin mixture to form a molten resin mixture.
  • the next step is molding the molten resin mixture into packaging.
  • a method for forming renewably-sourced polyolefin is provided.
  • the renewably-sourced polyolefin is made by transforming renewably-sourced light alcohols into olefins and polymerizing the olefins into the renewably-sourced polyolefin.
  • the light alcohols can be sourced from plant material.
  • the plant material can include sugarcane and sugarcane derivatives.
  • the invention includes a method for using renewably-sourced biodegradable polyolefin packaging.
  • the method for using includes biodegrading the packaging.
  • the biodegrading occurs anaerobically and without ultraviolet light, for example while buried in a landfill.
  • the invention includes a method of packaging food.
  • the method begins with the step of placing food within a renewably-sourced biodegradable polyolefin package.
  • the renewably-sourced biodegradable package includes renewably-sourced polyolefin and a biodegrading agent mixed with the renewably-sourced polyolefin.
  • the next step is storing the packaging and said food at a temperature below zero degrees Celsius ( ⁇ 0 °C).
  • the method includes microwaving the packaging and the food.
  • the renewably-sourced biodegradable packaging is particularly useful for packaging frozen comestibles, such as ice cream and gelato.
  • the renewably-sourced biodegradable packaging can be used to from an ice create carton.
  • a gelato tray is provided to package gelato.
  • the gelato tray includes a front wall, a right wall connected to the front wall, a rear wall connected to the right wall, a left wall connected to the rear wall and the front wall, a bottom connected to the front wall (the right wall, the rear wall; and the left wall), and a rim connected to and extending outward from the front wall, the right wall, the rear wall, and the left wall.
  • the front wall, the right wall, the rear wall, the left wall, the bottom, and the rim are made of renewably-sourced biodegradable polyolefin, the renewably-sourced biodegradable polyolefin.
  • a renewably-sourced biodegradable polyolefin utensil includes a resin being made from a polymerized mixture of a renewably-sourced polyolefin and a biodegrading agent.
  • the renewably-sourced biodegradable polyolefin utensil can include a tool and handle.
  • the tool can be used for contacting food.
  • the handle can be used by a user to grip.
  • the handle is connected to the tool.
  • the tool can be a knife blade; a fork having a root and at least two tines; a spoon having a bowl; a spork having a bowl and at least two tines, each of said two tines being connected to said bowl; and a stick for contacting food.
  • a renewably-sourced biodegradable polyolefin container is provided.
  • the container which is also referred to as a vessel, is for holding food.
  • the container includes a resin made from a polymerized mixture of a renewably-sourced polyolefin and a biodegrading agent.
  • the renewably-sourced biodegradable polyolefin container can be a plate, a bowl, a tray, a pitcher, a cup, a bottle, or a sports bottle.
  • the plate has a well surface for supporting food and a base for contacting a tabletop.
  • the bowl has a concave wall for supporting food and a base for contacting a tabletop.
  • the tray having a flat top for supporting a further container, a base for contacting a tabletop, and a rim around the flat top for preventing spills from leaving the tray.
  • the pitcher includes a bowl for storing a liquid, a spout for pouring a liquid from the bowl, and a handle connected to the bowl for lifting and tilting the bowl.
  • the bowl stores a liquid and has a base for contacting a table.
  • the sport bottle has a bowl for storing a liquid and a neck with a mouth; the neck is connected to the bowl and is narrower than the bowl; and the mouth allows liquids to be added to the bowl or removed from the bowl.
  • the bottle can include a cap that is removably connected to the neck and that closes the mouth.
  • the bowl is flexible and the cap has a nozzle for ejecting the liquid therethrough when the bowl is squeezed.
  • a method for forming a renewably-sourced biodegradable polyolefin utensil includes the following steps.
  • the first step is melting a mixture of renewably-sourced polyolefin and biodegrading agent to form a molten resin.
  • the next step is molding said molten resin to a shape of a utensil.
  • the following step can be performed: mixing pelletized renewably-sourced polyolefin and pelletized biodegrading agent to form the mixture.
  • a method for forming a renewably-sourced biodegradable polyolefin container includes the following steps.
  • the first step is melting a mixture of renewably-sourced polyolefin and biodegrading agent to form a molten resin.
  • the next step is molding said molten resin to a shape of a container.
  • the following step can be performed: mixing pelletized renewably-sourced polyolefin and pelletized biodegrading agent to form the mixture.
  • Fig. 1 is a sectional view of a laminate according to the invention.
  • FIG. 2 is a perspective view of an ice-cream container according to the invention.
  • FIG. 3 is a perspective view of a steaming tray according to the invention.
  • Fig. 4 is a perspective view of a gelato tray according to the invention.
  • Fig. 5 is a perspective view of the gelato tray shown in Fig. 4.
  • Fig. 6 is a top elevational view of a fork according to the invention.
  • Fig. 7 is a top elevational view of a spoon according to the invention.
  • Fig. 8 is a top elevational view of a knife according to the invention.
  • Fig. 9 is a top elevational view of a spork according to the invention.
  • Fig. 10 is a side elevational view of a pair of chopsticks according to the invention.
  • Fig. 11 is a top perspective view of a plate according to the invention.
  • Fig. 12 is a top perspective view of a bowl according to the invention.
  • Fig. 13 is a top perspective view of a tray according to the invention.
  • Fig. 14 is a top left perspective view of a pitcher according to the invention.
  • Fig. 15 is a top perspective view of a pitcher according to the invention.
  • Fig. 16 is a top perspective view of a bottle according to the invention.
  • FIG. 17 is a side elevational view of a sport bottle according to the invention.
  • a preferred embodiment of the invention is renewably-sourced biodegradable polyethylene packaging.
  • the packaging is formed with a mixture of ninety-eight to ninety -nine-and-five-tenths percent (98-99.5 %) by weight of renewably-sourced polyethylene and five-tenths to two percent (0.5-2 %) by weight of biodegrading agent.
  • the renewably-sourced polyethylene is produced by polymerizing ethylene, where the ethylene is produced by reducing light alcohols sourced from fermented sugarcane.
  • the preferred biodegrading agent is the biodegrading agent sold under the trademark BIOSPHERE® PLASTIC ADDITIVE.
  • Fig. 1 is a first preferred embodiment of a laminate 1 for making food containers.
  • the laminate 1 includes a base layer 10 and a coating 11.
  • the base layer 10 is made from a renewable or sustainable material.
  • the coating 11 is adhered to a surface 100 of the base layer 10 that will be facing the interior of the container when folded into the container.
  • the base layer 10 has a thickness of 0.050 cm.
  • Fig. 1 also shows a second preferred embodiment of a laminate 1 for making packaging.
  • the laminate 1 includes a base layer 10 and a coating 11.
  • the base layer 10 is made from a renewable or sustainable material. Examples of renewable or sustainable materials include paper, cardboard, polylactic acid, and bamboo-sourced stock.
  • the coating 11 is adhered to a surface 100 of the base layer 10 that will be facing the interior of the container when folded into the container.
  • the base layer 10 has a thickness of 0.050 cm.
  • the coating 11 is made from a film of renewably- sourced biodegradable polyolefin.
  • Fig. 2 shows a preferred embodiment of a container 2.
  • the container 2 is intended to be used to hold food and used once (i. e. , single use).
  • the container 2 is made from the laminate 1.
  • the container 2 includes a carton 20 and a lid 21.
  • the carton 20 has a wall 202 that is folded onto itself to form a seam 201.
  • the carton 20 has a rim 204.
  • the inside surface 203 of the wall 202 is covered with the coating 11.
  • the lid 21 is made of the laminate 1 and has a wall 210 and a top 211.
  • Fig. 3 shows a preferred embodiment of packaging: a steaming tray 3.
  • the steaming tray 3 includes a cover 30.
  • the cover 30 has a rim 31 around its periphery.
  • the cover 30 has perforations 32 formed therein.
  • the steaming tray 3 is made of the laminate 1 in which the base layer 10 is made from a renewable or sustainable material.
  • the steaming tray 3 is made of the laminate 1 in which the base layer 10 is made of a renewably- sourced biodegradable polyolefin.
  • the steaming tray 3 is made of renewably-sourced biodegradable polyolefin.
  • Two suitable examples of the polyolefin are polyethylene and polypropylene.
  • the third embodiment is made by injection molding the renewably-sourced biodegradable polyolefin into the shape of the steaming tray 3.
  • Preferred methods of using the steaming tray 3 include combinations of at least one of the following steps.
  • One step is placing food within a container that includes the steaming tray 3.
  • the next step is freezing the food by cooling the container that includes the steaming tray 3 to a temperature below freezing (i.e., ⁇ 0 °C). If the food is to be blast frozen, then the next step is to freeze by cooling the food and the container that includes the steaming tray 3 to a temperature equal to or less than negative forty degrees Celsius ( ⁇ -40 °C). If the food is to be stored and cooled with dry ice, then the next step is to freeze the food and the packaging that includes the steaming tray 3 to negative seventy-eight or lower degrees Celsius ( ⁇ -78 °C).
  • the food and the container that includes the steaming tray 3 are stored, shipped, and distributed.
  • a retailer sells the food and the container that includes the steaming tray 3 at a temperature below freezing ( ⁇ 0 °C).
  • the purchaser/consumer/end user keeps the frozen food held in the container that includes the steaming tray in a freezer at a temperature below freezing ( ⁇ 0 °C).
  • the container that holds the frozen food along with the steaming tray 3 is heated in a microwave.
  • the steaming tray 3 is exposed to steam which is at the temperatures equal to the boiling point of water (i.e., 100 °C).
  • Figs. 4-5 shows a gelato tray 4.
  • the gelato tray 4 includes a rounded cuboid container 40 an opening at a top of the rounded cuboid container 40 and a rim 41 extending peripherally from a top edge of the rounded cuboid container 40. While Figs. 4-5 does not show a lid for the gelato tray 4, a lid can be added.
  • the cuboid container 40 has a front wall 42, a right wall 43, a rear wall 44, a left wall 45, and a bottom 46.
  • the laminate 1 performs as packing for food in the temperature that range from negative-seventy -nine (i.e., dry ice) to two-hundred-four degrees Centigrade (-79-204°C).
  • the laminate 1 performs as packaging during short exposure (i.e., two days or less, most likely less than one day) to -79 °C is possible.
  • the gelato tray 4 is made from the laminate 1 that has been molded to the shape.
  • the coating 11 of the laminate 1 faces an interior of the rounded cuboid container 40.
  • the base layer 10 is made from polylactic acid (PLA), where the PLA is com based.
  • the base layer 10 is made of cellulose acetate propionate (CAP).
  • CAP can be soy based, tree based, or grass based (e.g., bamboo).
  • the container 2, the steaming tray 3, and the gelato tray 4 are formed by thermoforming, compression molding, injection molding, extruding, additive manufacturing, and/or splitting, cutting, gluing, and coating sheets of the laminate 1.
  • a preferred embodiment of the composition is polypropylene.
  • An alternate preferred embodiment is polyethylene.
  • the resin is used to form the preferred embodiments of the utensils shown in Figs. 6-10 and the containers shown in Figs. 11-17.
  • Fig. 6 shows a preferred embodiment of a fork 60.
  • the fork 60 includes a handle 61 connected to a root 62.
  • Four tines 63, 64, 65, 66 extend from the root 62.
  • Fig. 7 shows a preferred embodiment of a spoon 70.
  • the spoon 70 includes a handle 71 connected to a bowl 72.
  • Fig. 8 shows a preferred embodiment of a knife 80.
  • the knife 80 includes a handle 81 connected to a knife blade 82.
  • Fig. 9 shows a preferred embodiment of a spork 90.
  • the spork 90 includes a handle 91 connected to a bowl 92.
  • Four tines 93, 94, 95, and 66 extend from the bowl 92.
  • Fig. 10 shows a pair of chopsticks: i.e., chopstick 100A and chopstick 100B.
  • Each chopstick 100A and 100B has a handle 101 A and 101B, respectively. From each handle 101A and 101B, a stick 102A and 102B extends, respectively.
  • Fig. 11 shows a plate 110.
  • the plate 110 has a well surface 111 for supporting food and a base 112 for contacting a tabletop.
  • Fig. 12 shows a bowl 120 having a concave wall 121 for holding food and a base 122 for contacting a tabletop.
  • Fig. 13 shows a tray 130.
  • the tray 130 has a flat top 131 for supporting food or a further container.
  • the tray 130 has a base, which is not shown, for contacting a tabletop.
  • a rim 132 is disposed around and extends upward from the flat top 131. The rim 132 prevents spills from escaping the tray 130.
  • Fig. 14 shows a pitcher 140.
  • the pitcher 140 includes a bowl 141 for storing a liquid.
  • a user pours liquid from the bowl 141 with the spout 142.
  • a handle connects to the bowl 141 and is used for lifting and tilting the bowl 141.
  • Fig. 15 shows a cup 150.
  • the cup including a frustoconical bowl 151 for storing a liquid and a base 152 for contacting a tabletop or other surface.
  • Fig. 16 shows a bottle 160.
  • the bottle 160 has a bowl 161 for storing a liquid and a neck 162 with a mouth, which is not visible in Fig. 16.
  • the neck 162 is connected to the bowl 161 and is narrower than the bowl 161.
  • the mouth allows liquids to be added to the bowl 161 or removed from the bowl 161.
  • Fig. 17 shows a bottle 160.
  • the bottle 160 has a bowl 161 for storing, a liquid and a neck 162.
  • the bowl 161 is flexible.
  • the cap 163 has a nozzle 164 for ejecting the liquid therethrough when the bowl 161 is squeezed.
  • a preferred embodiment of a method for forming a renewably-sourced biodegradable polyolefin utensil includes the following steps.
  • a preferred embodiment of a method for forming a renewably-sourced biodegradable polyolefin container includes the following steps.
  • the invention is applicable to packaging industries and, more specifically, food packaging industries.

Abstract

L'invention concerne des emballages, ustensiles et contenants en polyoléfine biodégradable d'origine renouvelable qui comprennent une polyoléfine d'origine renouvelable (par exemple, du polyéthylène et du polypropylène) et un agent de biodégradation. L'emballage en polyoléfine biodégradable d'origine renouvelable est fabriqué à partir de matières végétales typiquement par polymérisation d'oléfines qui sont fabriquées par réduction d'alcools créés par fermentation de matières végétales. Un exemple d'une matière végétale appropriée est la canne à sucre et ses dérivés. L'agent de biodégradation accélère la biodégradation de l'emballage en polyoléfine même dans des environnements anaérobies et sombres (c'est-à-dire, absence de lumière ultraviolette). Un tel emballage est particulièrement utile pour emballer des aliments congelés qui doivent être cuits au four à micro-ondes dans l'emballage. L'emballage est également particulièrement utilisable comme emballage pour des produits comestibles congelés, qui sont souvent stockés à des températures de glace carbonique. Finalement, l'emballage en polyoléfine biodégradable d'origine renouvelable fournit un emballage durable du début à la fin qui répond aux exigences d'être d'origine renouvelable, biodégradable en décharges, et d'avoir des performances similaires à celles d'un emballage en polyoléfine classique.
PCT/US2021/053037 2020-09-30 2021-09-30 Emballages, ustensiles et contenants en polyoléfine biodégradable d'origine renouvelable WO2022072744A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US17/060,058 US20210095098A1 (en) 2019-09-30 2020-09-30 Renewably-Sourced Biodegradable Polyolefin Packaging
US17/060,058 2020-09-30
US17/449,388 2021-09-29
US17/449,388 US11905396B2 (en) 2019-09-30 2021-09-29 Renewably-sourced biodegradable polyolefin packaging, utensils, and containers

Publications (1)

Publication Number Publication Date
WO2022072744A1 true WO2022072744A1 (fr) 2022-04-07

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4113095A (en) * 1976-11-26 1978-09-12 Van Dorn Company Tray-type processed food containers
US5191670A (en) * 1991-12-30 1993-03-09 Lake Ron W Fork scrubber
US6129803A (en) * 1997-09-02 2000-10-10 Wescon Products, Inc. Method for producing a thermoplastic container
US20070148384A1 (en) * 2005-11-28 2007-06-28 Bowden Joe A Processes for filming biodegradable or compostable containers
US20090274920A1 (en) * 2008-05-05 2009-11-05 International Paper Company Thermoformed Article Made From Bio-Based Biodegradable Polymer Composition
WO2009149523A1 (fr) * 2008-06-11 2009-12-17 Sea To Summit Pty Ltd Fond dissipateur de chaleur pour article de table et article de table le comportant
US20120157560A1 (en) * 2009-05-29 2012-06-21 Xl Terra, Inc. Ketal esters of anhydropentitols and uses thereof
US20160000247A1 (en) * 2014-07-02 2016-01-07 Adam Vogele Utensil and chopsticks figurine
US20180086517A1 (en) * 2016-09-23 2018-03-29 Product Architects, Inc. Sports bottle cap

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4113095A (en) * 1976-11-26 1978-09-12 Van Dorn Company Tray-type processed food containers
US5191670A (en) * 1991-12-30 1993-03-09 Lake Ron W Fork scrubber
US6129803A (en) * 1997-09-02 2000-10-10 Wescon Products, Inc. Method for producing a thermoplastic container
US20070148384A1 (en) * 2005-11-28 2007-06-28 Bowden Joe A Processes for filming biodegradable or compostable containers
US20090274920A1 (en) * 2008-05-05 2009-11-05 International Paper Company Thermoformed Article Made From Bio-Based Biodegradable Polymer Composition
WO2009149523A1 (fr) * 2008-06-11 2009-12-17 Sea To Summit Pty Ltd Fond dissipateur de chaleur pour article de table et article de table le comportant
US20120157560A1 (en) * 2009-05-29 2012-06-21 Xl Terra, Inc. Ketal esters of anhydropentitols and uses thereof
US20160000247A1 (en) * 2014-07-02 2016-01-07 Adam Vogele Utensil and chopsticks figurine
US20180086517A1 (en) * 2016-09-23 2018-03-29 Product Architects, Inc. Sports bottle cap

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