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A PROCESS FOR PREPARATION OF NANOCRYSTALLINE CELLULOSE AND APPLICATION THEREOF

Resumen de: WO2026167733A1

The present invention provides a continuous mechano-chemical synchronization process designed to enhance the yield of acid hydrolysis of cellulose, specifically targeting the production of nanocrystalline cellulose (NCC). The process employs a two-stage controlled acid hydrolysis of Micro Crystalline Cellulose (MCC), utilizing a uniquely tailored reactor configuration to control morphology and optimize process efficiency. Additionally, it outlines advanced downstream operations for product neutralization and purification through tubular centrifuge and nano-pores membranes. The present invention also explores the potential for resource recovery for sustainability approach in this extraction process and demonstrates applications on biodegradable packaging, reinforced plastics and as absorbent materials for hygiene products.

LAMINATED STRUCTURES

Resumen de: AU2025213459A1

Provided are sheets comprising at least three polymer layers, wherein each of the outer layers comprises a mixture of polylactic acid (PLA) and polycaprolactone (PCL) and each form from about 2.5% to about 20% of the total thickness of the sheet and wherein a core layer forms from about 60% to about 95% of the total thickness of the sheet; and to laminated structures comprising such sheets. Also provided are laminated structures comprising at least 3 biodegradable polymer sheets: a) first sheet comprising cellulose or a derivative thereof; b) a second sheet comprising at least one polymer selected from the group consisting of PBSA, PLA, PCL and combinations thereof; and c) a third sheet comprising at least one polymer selected from the group consisting of PBSA, PLA, PHA, PCL, PBAT and combinations thereof, wherein the second sheet is located between the first sheet and the third sheet

BIODEGRADABLE AND COMPOSTABLE BAGS FOR GROWING MUSHROOMS

Resumen de: US20260231872A1

This invention introduces a biodegradable bag developed for mushroom cultivation, utilizing natural materials such as cornstarch, cellulose, and biodegradable polymers. Its design features micro-perforations that optimize airflow and retain moisture crucial for mushroom mycelium growth, leading to improved growth rates and yields while streamlining handling and transport, thus reducing labor costs. As compostable products, these bags offer a more sustainable alternative to traditional plastic, lowering waste disposal expenses and diminishing reliance on fossil fuels and carbon emissions from plastic production. By providing an eco-friendly solution to the agricultural challenges posed by plastic, the biodegradable bag supports a circular economy and promotes healthier farming practices, marking a significant advancement in the mushroom industry and its environmental impact.

MULTILAYER PET BOTTLES WITH LOW LIGHT TRANSMITTANCE

Resumen de: US20260233881A1

0000 Multilayer bottles contain a core layer having a first side and a second side, the core layer comprising an opacifying additive and a core polyester polymer, a hydrolyzable polymer, or a combination thereof, an inner layer positioned on the first side of the core layer, the inner layer comprising a first polyester polymer, and an outer layer positioned on the second side of the core layer, the outer layer comprising a second polyester polymer. The multilayer bottles have a light transmittance of less than or equal to 1% at a wavelength in the 400 to 700 nm range and an ash content of less than or equal to 1 wt. %.

PACKAGING ITEM AND PACKAGED FOOD PRODUCT

Resumen de: US20260233885A1

The present invention relates to a packaging item comprising a cylindrical container made of a multilayer oxygen and moisture barrier laminate comprising a cardboard and an organic or inorganic barrier layer The container has a dispensing opening. The packaging item further comprises at least one sleeve element with at least one sleeve element peripheral wall, the sleeve element being configured to be slid over at least a top end portion of the container peripheral wall and being made of a multilayer oxygen and moisture barrier laminate comprising a cardboard and an organic or inorganic barrier layer. The packaging item further comprises at least one base element with at least one base element peripheral wall, the base element at least partially enclosing and preferably immovably attached to a bottom end portion of the container peripheral wall. The present invention further relates to a packaged food product.

POLYVINYL ALCOHOL RESIN, WATER-SOLUBLE FILM, EXTRUSION-MOLDED ARTICLE, FILAMENT, NONWOVEN FABRIC, CONTAINER, METHOD FOR PRODUCING WATER-SOLUBLE FILM, AND AQUEOUS SOLUTION

Resumen de: US20260234302A1

0000 To provide: a polyvinyl alcohol resin which enables obtaining a water-soluble film having favorable cold-water solubility and mechanical strength, has favorable biodegradability, and is superior in filterability in a state of an aqueous solution; a water-soluble film, an extruded product, a filament, a non-woven fabric, and a container each containing such a polyvinyl alcohol resin; a method for producing a water-soluble film; and an aqueous solution. The polyvinyl alcohol resin contains, as a principal component, a modified polyvinyl alcohol containing a unit represented by the following formula (1), wherein a ratio (N1/N2) of the number (N1) of 1-μm-size particles to the number (N2) of 2-μm-size particles contained in 1 mL of a 2% by mass aqueous solution of the polyvinyl alcohol resin is 0.1 or more and 50 or less. In the formula (1), R represents a single bond or a divalent organic group, and M represents a hydrogen atom, a metal atom, or an ammonium group. 0000

BAG WITH VIEWING WINDOW

Resumen de: EP4789979A1

Die Erfindung betrifft eine Bäckertüte mit einer Vorderwand (20) und mit einer Rückwand (22), die beidseitig über jeweils eine Seitenfalte (24, 26) miteinander verbunden sind. In der Vorderwand (20) und/oder der Rückwand (22) ist zumindest ein Sichtfenster (40) vorhanden. Erfindungsgemäß ist das Sichtfenster (40) mit einer Papier-Folie aus einem mit SiO₂ behandelten Pergamin hinterklebt.

ABUTMENT SURFACES PROVIDED WITH RECESSES, CORRESPONDING SEMI-FINISHED PRODUCTS, AND PROCESSES FOR THE PREPARATION THEREOF

Resumen de: WO2025074210A1

The present invention refers to the field of the food packaging, particularly refers to a containment/containing structure (II), such as an abutment surface, comprising at least one cavity/recess/depression/hollow (γ) provided with a through hole (γ1), having different shapes, volumes/capacities and dimensions/sizes.

HIGH STRENGTH AND TOUGHNESS BIAXIALLY-ORIENTED POLYLACTIC ACID (BOPLA) COMPOSTABLE FILM AND PREPARATION METHOD THEREOF

Resumen de: CN121969678A

High strength and biodegradable polymer films comprising a blend of a polylactic acid (PLA) copolymer, a flexible polymer linker, and optionally a compostable polyester segment are disclosed. After biaxial stretching, the disclosed polymer films exhibit unexpectedly high tensile strength and high impact strength while providing high flexibility as measured according to a variety of standards such as ASTM D882, ASTM D3420, and ASTM D1709. The disclosed films are formulated to meet the commonly used industrial composting standards defined by ASTM D6400, EN 13432, and ISO 17088, and exhibit accelerated biodegradation rates at lower temperatures for home composting applications.

RESIN COMPOSITION FOR T-DIE EXTRUSION MOLDING

Resumen de: EP4790098A1

0001 A resin composition for T-die extrusion molding contains: 100 parts by weight of a poly(3-hydroxyalkanoate) resin (A); 0.3 to 3 parts by weight of a layered clay mineral (B) having a mean particle diameter D50 of 1 to 5 µm and a specific surface area, as determined by BET method, of 10 to 40 m<2>/g; and 0.3 to 3 parts by weight of a fatty acid amide compound (C). The resin composition has a melt viscosity, as measured at a temperature of 175 °C and a shear rate of 122 s<-1>, of 300 to 1000 Pa·s.

TRAY COVER MADE OF NATURAL MATERIAL AND TRAY THEREBY COVERED

Resumen de: WO2025074263A1

A cover (8) for trays (1), to be used for packaging products of various types, particularly food products, comprises a net layer (9) made of natural fibres or synthetic fibres of a natural origin or in any case biodegradable and/or compostable fibres. At least one card strip (11) is thermally fixed on the same surface of the net layer, in the region of at least one of the sides thereof. The cover can be thermo-welded to the frame (6) of the edge of a tray which is also biodegradable and/ or compostable so as to obtain a packaging which does not make use of plastics materials.

生分解性メモリーカードホルダ

Resumen de: WO2023204879A1

Various embodiments include, for example, a memory-card holder including a one-piece, unitary tray formed entirely from a bio-degradable material. The tray has a cover portion and a bottom portion formed therein. At least one of the cover portion and the bottom portion has an indentation to accept a digital memory-card. The tray further includes a protrusion area on at least three sides projecting outward from and substantially parallel to the cover portion and the bottom portion. A hinge is integrally formed into the unitary tray and between the cover portion and the bottom portion. The hinge is arranged to allow the cover portion to fold over the bottom portion of the tray. A closure tab and an insertion slot are formed on distal, opposing ends of the tray and arranged to latch the cover portion and the bottom portion to one another. Other devices, apparatuses, and arrangements are described.

FIBER PACKAGES, CONTAINERS, AND CLOSURES

Resumen de: WO2023164600A1

Disclosed herein are packages such as containers. A container includes a closure including a closure sealing surface, a molded fiber container body, and a collar bonded to the molded fiber container body. The collar configured to provide a sealing surface corresponding to the closure sealing surface to seal the container when the closure is attached to the bonded collar and molded fiber container body. The container includes a latching mechanism configured to releasably latch the closure to the bonded collar and molded fiber container body.

FOAMABLE COMPOSITION, BIODEGRADABLE PMI FOAM, AND PREPARATION METHOD THEREFOR

Resumen de: EP4790093A1

The present disclosure relates to a foamable composition, biodegradable PMI foam and preparation method thereof. The foamable composition comprises a comonomer, an initiator, a foaming agent and a crosslinking agent, wherein the comonomer comprises a first comonomer and a second comonomer, the first comonomer is selected from one or two of methacrylonitrile or acrylonitrile, and the second comonomer is selected from methacrylic acid; the composition further comprises a degradation agent selected from one or a combination of two or more of polylactic acid, starch-based polyether polyol and polycaprolactone; the weight ratio of the degradation agent to the comonomer is 30-132 : 180. The foamable composition of the present disclosure improves the biodegradation rate of PMI foam while retaining the original high performance of PMI foam, which is achieved through scientific incorporation of degradation agent and formula adjustment, and by adopting an in-situ polymerization technology.

Packaging tray for modified atmosphere packaging (MAP)

Resumen de: US20260008249A1

A method of manufacturing a modified atmosphere packaging (MAP) container, comprising forming a molded fiber structure from a slurry comprising a biodegradable fibrous product and water, forming a multi-layered peelable liner having a defined number of layers that are concomitantly layered in a predefined sequential configuration, wherein a plurality of polyamide (PA) layers and an ethylene vinyl alcohol (EVOH) layer are sandwiched between a first set of polyethylene (PE) layers and a second set of PE layers, and removably attaching the multi-layered peelable liner on the molded fiber structure to form the MAP container.

VALVE, AND PACKAGE

Resumen de: EP4257512A1

0001 According to an aspect of the present invention, a pressure-relief valve is provided, the valve comprising a cup shaped main body (1) with a bottom (11) and a circumferential wall (12) to be fastened to a flexible package material. The bottom has at least one through hole (14) forming a passage through the main body. A valve membrane lies against the main body on a package side in a region around the through hole(s) (14), with a sealing liquid between the main body and the valve membrane. The valve membrane thereby covers the at least one through hole (14). The circumferential wall (12) has, on its outside, a plurality of indentations (71).

飲料を調製するためのカプセル

Resumen de: AU2024316802A1

A biodegradable and/or compostable capsule for use with a beverage preparation machine (10) for preparing a beverage and/or foodstuff thereof is disclosed. The capsule comprises a cup-shaped body (1) and a closing membrane (2) for closing the cup-shaped body, both elements defining a closed cavity for a beverage and/or foodstuff ingredient, preferably roast and ground coffee, and a liner (20) or a coating having barrier function providing barrier function to the cup-shaped body. The cup-shaped body is made of cellulose-based material, preferably molded pulp-based material and comprises a bottom wall (4), a tubular lateral side wall (5), an annular flange (3) connected to the lateral wall for the closing membrane to seal thereon, and an outwardly extending rim portion (6) connected to the annular flange. The rim portion is made of cellulose-based material and comprises a curved and/or curled end portion (6A) comprising a treated region in which the cellulose-based material has a porosity that is less than 40%, preferably between 0% to 25%.

積層体

Resumen de: JP2026127873A

【課題】バイオマス由来で高い環境配慮性を有し、かつ簡易な成分構成の積層体を提供する。【解決手段】本発明の積層体１Ａは、基材層２と、これに積層された樹脂層３とから構成され、樹脂層３がバイオマス由来の樹脂を含む。そのバイオマス度は、通常５０％以上であり、９０％以上が好ましい。基材層２は、セロファンフィルムからなる。樹脂層３は、基材層２に、プライマー層を介して積層されてもよい。本発明の積層体は、軟包材に好適に用いることができる。【選択図】図１

PACKAGING FILM WITH OXYGEN TRANSMISSION

Resumen de: US20260225781A1

The present disclosure relates to compostable film, and more particularly to compostable film having desirable oxygen transmission properties for packaging of a perishable item, such as seafood products. According to an aspect, the present disclosure is directed to a compostable packaging film comprising a flexible packaging material defining a plurality of pores and having a barrier coating for regulating the oxygen transmission rate. According to an aspect, the present disclosure is directed to a method of preparing a packaging film, the method comprising: (a) providing a polymer film having an interior food-contact surface and an exterior environment-facing surface opposite the interior surface; (b) modifying the polymer film by micro-perforation, to increase an oxygen transmission rate of the packaging film; and (c) applying a barrier coating to the exterior surface to further adjust the oxygen transmission rate of the packaging film. In an embodiment, the packaging film may be an antimicrobial film.

Packaging and methods of production thereof

Resumen de: AU2026206255A1

Abstract The present invention relates to a compostable food packaging comprising: a) a compostable moulded tray having an interior cavity for receiving a foodstuff, an opening through which the foodstuff can be accessed, and a lip extending at least partially around the opening; b) wherein the compostable moulded tray forms a compostable barrier, or wherein the compostable moulded tray comprises a compostable barrier film extended over, and bonded to, the interior cavity and lip of the tray by means of a paper and biofilm heat seal adhesive ; and c) a compostable lid which is peelably adhered around the opening and extending to the lip using a peelable adhesive. The packaging is particularly useful for producing single serve sauce pots for quick serve restaurants and take-away outlets, but could also be used for single serve cooking sauces and concentrated stock. The invention also relates to methods of producing such a compostable food packaging. Fig. 1 Abstract ul b s t r a c t u l WO 2024/079484 PCT/GB2023/052670 Figure 1 Figure 2 SUBSTITUTE SHEET (RULE 26) ul u l ( )

樹脂組成物、成形体及び樹脂組成物の製造方法

Resumen de: JP2023082587A

To provide a resin composition in which a biomass not subjected to chemical modification, is preferably compatible to various kinds of resins and which has a preferable mechanical physical property and applies an inexpensive resin molded body, a molded body formed of the same, and a production method of the same.SOLUTION: A resin composition includes: biomass particles whose specific surface area is increased by being subjected to at least one of physical processing and enzyme treatment; and a resin. A resin composition includes: biomass particles in which unevenness is formed by at least one of the physical processing and enzyme treatment performed to surfaces thereof; and a resin. A molded body is formed of the resin composition. A production method of the resin composition includes a step for mixing the biomass particles and the resin.SELECTED DRAWING: None

Water-Proof and Oil-Proof Coating, Preparation Method and Use Thereof

Resumen de: US20260225780A1

0000 The invention discloses a waterproof and oil-proof coating as well as a preparation method and application thereof. The waterproof and oil-proof coating comprises the following components in percentage by mass: 10%-20% of a citrus peel extracting solution; 1%-2% of bacterial cellulose; 1%-2% of nano calcium carbonate; 3%-6% of glycerol; 3%-5% of a food-grade thickening agent; 0.2%-0.6% of a food grade defoaming agent; 0.5%-1% of a food-grade emulsifier; and the balance of water. The preparation method of the waterproof and oil-proof coating comprises the following step: uniformly mixing the citrus peel extracting solution, the bacterial cellulose, the nano calcium carbonate, the glycerol, the food-grade thickening agent, the food-grade defoaming agent, the food-grade emulsifying agent and the water to obtain the waterproof and oil-proof coating. The waterproof and oil-proof coating can endow a paper-based material with excellent waterproof and oil-proof performance, and is degradable, simple in preparation process, low in production cost and suitable for large-scale industrial application.

THERMORESISTANT PLA KNIFE/FORK/SPOON AND METHOD FOR PREPARING SAME

Resumen de: US20260224059A1

0000 The present disclosure relates to the technical field of tablewares, and particularly, to a method for preparing a thermoresistant PLA knife/fork/spoon. The method includes the following steps: preparing a knife/fork/spoon preform from a PLA knife/fork/spoon raw material via injection molding using an injection molding machine, the knife/fork/spoon preform includes PLA that is not completely crystallized; and subjecting the knife/fork/spoon preform to carbon dioxide soaking treatment at constant temperature and pressure to crystallize the uncrystallized PLA in the knife/fork/spoon preform, so as to obtain a PLA knife/fork/spoon product with a temperature resistance of 65° C. or above. The present disclosure further provides a thermoresistant PLA knife/fork/spoon. The knife/fork/spoon is a microfoaming product with a density reduced by 5% to 30% relative to the knife/fork/spoon preform and the knife/fork/spoon has a temperature resistance of 65° C. or above.

A GROWING MEDIA AND PROCESS OF FABRICATION THEREFORE

Resumen de: AU2025214348A1

In one aspect the invention provides a process of fabricating a growing media involving providing a mould. The mould defines a shape. The process deposits a defined amount of media selected for characteristics into the mould. The media is wetted. The media is compressed in the mould. The process agitates the media while compressed. The process needles the media while wet so as to promote felting and create structure. The media is dried to provide a growing media with engineered layers of media of selected characteristics deposited iteratively.

COMPOSITE PAPERS AND METHODS OF MAKING THEREOF

Nº publicación: US20260226686A1 06/08/2026

Solicitante:

EASTMAN CHEMICAL CHINA CO [CN]
EASTMAN CHEMICAL (CHINA) CO.

Resumen de: US20260226686A1

A composite paper comprising: a paper substrate having a top surface and a bottom surface; and a coating layer on at least a portion of the top surface of the paper substrate; wherein the coating layer is formed from a composition comprising: a cellulose ester resin, and at least one organic solvent; wherein a difference between the refractive index of the paper substrate and the refractive index of the at least one cellulose ester resin is less than 0.035