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METHODS OF MAKING AND USING BIODEGRADABLE PLASTIC PRODUCTS AND PRODUCTS THEREOF

Resumen de: US20260275030A1

0000 A biodegradable plastic chain is disclosed, comprising a polymer blend in which the major component is sourced from plant-derived monomers and/or polymers, including polylactic acid, polybutylene succinate, or polycaprolactone. The chain is formed into interlocking links and may include additives such as ultraviolet stabilizers, antioxidants, compatibilizers, plasticizers, and nucleating agents to enhance durability and environmental stability. The chain exhibits good mechanical strength and maintains structural integrity for several months under standard use conditions. It is designed for controlled biodegradation in industrial composting, soil burial, or marine environments, decomposing at least 30 percent within 180 days under industrial composting conditions. Methods of manufacturing and using the biodegradable chain are also disclosed.

SYSTEMS AND METHODS FOR MAKING A LIGNIN PAPER POUCH, CONTAINER, OR SEALING STRUCTURE

Resumen de: US20260274518A1

A pouch made of plant-based materials includes a body defining a left side, a right side, a bottom side, and a mouth at an upper end thereof that provides access into a cavity of the pouch, and a sealing structure that is configured to allow access into the cavity of the pouch in an open configuration and to prevent access into the cavity of the pouch in a closed configuration. The sealing structure includes at least 85% repulpable, plant-based material, and a remaining percentage of the sealing structure consists of a water-insoluble polymer.

POLYOLEFIN-BASED BREATHABLE AND COMPOSTABLE FILM

Resumen de: WO2026192558A1

Solutions to enhance the biodegradability of polyolefin films typically involve incorporating biodegradable polymers into the formulation or using additives in conventional polyolefins to induce oxo-degradation. In contrast, the breathable polyolefin film of the present invention features an advanced catalytic system that enables the conversion of polyolefin material into a wax-like structure that is biologically assimilable. This wax is easily digested by naturally occurring microorganisms. Unlike oxo-degradation, the film of the present invention undergoes complete biological decomposition and composting without leaving behind microplastics or toxic residues, thereby providing a truly environmentally friendly polyolefin-based film.

METHOD FOR PREPARING ADHESIVE-FREE REPULPABLE MULTI-LAYER HIGH-BARRIER PACKAGING MATERIAL

Resumen de: WO2026188972A1

Provided is a method for preparing an adhesive-free repulpable multi-layer high-barrier packaging material. The method comprises: providing a first paper substrate and a second paper substrate, and preparing a barrier coating, wherein a plasticizer is added to the barrier coating; applying the barrier coating to a first surface of the first paper substrate to form a first paper-based barrier layer having a two-layer structure; applying the barrier coating to a second surface of the second paper substrate to form a second paper-based barrier layer having a two-layer structure; and aligning the surfaces thereof coated with the barrier material face to face, stacking same and performing hot pressing to prepare a high-barrier packaging material. Further, the plasticizer is a bio-based plasticizer. The formed high-barrier packaging material is designed to have a structure which allows for the splitting of two layers, the barrier material is applied to the surfaces of the two split layers, and the same barrier material is plasticized and bonded by using a hot-pressing process to form synergistic and associated effects from the addition of environmentally friendly materials to the processing procedures, thereby effectively improving the interlayer bonding force of the material, preventing the material from bulging and cracking, and improving the comprehensive properties including moisture barrier property, oxygen barrier property, repulpability, etc.

MULTILAYER FILM AND METHOD FOR PRODUCING SAME

Resumen de: WO2026191635A1

This multilayer film includes the following layers laminated in the stated order: a first outer layer that contains a poly(3-hydroxyalkanoate)-based resin (A1), a polylactic acid-based resin (B1), and, as an optional component, a sugar alcohol compound (C1); an inner layer that contains a poly(3-hydroxyalkanoate)-based resin (A0), a polylactic acid-based resin (B0), and a sugar alcohol compound (C0); and a second outer layer that contains a poly(3-hydroxyalkanoate)-based resin (A2), a polylactic acid-based resin (B2), and, as an optional component, a sugar alcohol compound (C2). The content of (C1) with respect to 100 parts by weight of (A1), and the content of (C2) with respect to 100 parts by weight of (A2) are each less than the content of (C0) with respect to 100 parts by weight of (A0) and are each 0-0.4 parts by weight.

ALGAE-BASED BIOCOMPOSITES

Resumen de: WO2026192880A1

A polymer algae-based biocomposite includes a thermoplastic polymer and an algal biomass filler that is distributed through the thermoplastic polymer. The algal biomass filler contains algae. The algal biomass filler may further include any additives sufficient to achieve a desired mixing and/or property. As an example, the algal biomass filler includes between about 1% and about 50% of the composition and the thermoplastic polymer comprises between about 50% and about 99% of the composition.

METHOD FOR PRODUCING A CLOSURE-SECURING MEANS FROM FIBER-BASED MATERIAL

Resumen de: US20260274475A1

0000 A method for producing a closure-securing means for a container, the method includes providing a container produced from fiber-based material at least in sections and having an opening which is closed with a closure, and forming a closure-securing means for connecting the closure to the container from the fiber-based material. An apparatus, in particular for performing the method and in particular for producing the container, includes a filling apparatus for filling a liquid into a container, a closure apparatus for closing the filled container, and a closure-securing apparatus which allows the closure and the container to be materially bonded together by applying or deforming fiber-based material, wherein the closure-securing apparatus is connected to a supply, in particular a tank, of the fiber-based material.

BIODEGRADABLE FILM AND BIODEGRADABLE MOLDED PRODUCT USING SAME

Resumen de: US20260273824A1

An embodiment pertains to a biodegradable film and a biodegradable molded product manufactured using same. The biodegradable film comprises a middle layer containing polybutylene succinate adipate (PBSA) resin, and a first and a second skin layer on the respective outermost sides, each containing polylactic acid (PLA) resin, whereby excellent biodegradability can be ensured while maintaining optical properties such as haze and light transmittance, and mechanical properties such as tensile strength and modulus.

Fiber-reinforced biodegradable nanocomposite material utilizing a dispersant composed of heterocyclic rings and commercialized blocks and its manufacturing method

Resumen de: KR20260137499A

본 발명은 이종 고리 및 상용화 블록으로 구성된 분산제를 활용한 섬유강화 생분해성 나노복합소재 및 이의 제조 방법에 관한 것으로서, 보다 상세하게는 셀룰로오스 나노섬유(cellulose nanofiber; CNF)가 이종 고리 및 폴리락트산(Poly Lactic Acid, PLA)를 포함하는 분산제에 의해 코팅된 후, 코팅된 셀룰로오스 나노섬유와 생분해성 고분자가 혼합 후 블렌딩하여 기계적 물성이 향상된 생분해성 나노복합소재 및 이를 제조하는 방법에 관한 것이다.

Device for producing shaped products from a plurality of paper layers

Resumen de: US20260275651A1

A method for producing shaped products from multi-layer paper dispenses with subsequent drying steps and still allows entirely compostable shaped products to be produced that, in terms of their shape, are not limited to flat angles between flat regions. A corresponding shaped product made of paper and to a device for carrying out the method are disclosed.

ALIPHATIC POLYESTER AND USE THEREOF

Resumen de: EP4806938A1

The present invention provides an aliphatic polyester and use thereof. The aliphatic polyester includes a dicarboxylic acid residue and a diol residue; the dicarboxylic acid residue includes the following residues: a1), based on a total molar percentage content of a1) and a2) as 100 mol%, 65-90 mol% of a succinic acid residue; and a2), based on the total molar percentage content of a1) and a2) as 100 mol%, 10-35 mol% of a sebacic acid residue; the diol residue is selected from a 1,4-butanediol residue with a molar content at least equal to that of the dicarboxylic acid residue; and the aliphatic polyester includes an oligomer with a number-average molecular weight < 1,000 as measured by gel permeation chromatography (GPC), and a mass percentage content of the oligomer with the number-average molecular weight < 1,000 as measured by GPC in the aliphatic polyester is 0.08-3.5 wt%. A packaging film prepared from the aliphatic polyester possesses both good food contact performance and unwinding performance.

パルプモールド物品

Resumen de: WO2025040608A1

The present invention relates to a method of producing a moulded pulp article (1), the method comprising: a) applying a composite phase (2) to the pulp (3), the composite phase (2) comprising precursor particles (4); b) shaping the pulp (3); and c) converting the composite phase (2) to a ceramic coating (5) by heating the composite phase; and moulded pulp articles.

METHOD FOR FORMING A CONTAINER FROM A FIBER-BASED WALL PORTION AND A FRAME STRUCTURE, AND A CONTAINER

Resumen de: WO2025099285A1

Disclosed herein is a method (400) for forming a shoulder (110) on a container (100) comprising a fiber-based wall portion (120) and a frame structure (130). The method comprises the steps of inserting a precut sheet (125) of fiber‐ based material into a female mould (210) to form the wall portion (120), inserting a corresponding male mould (220) into the female mould (210), injecting a liquid polymer (230) into a first cavity (310) formed between the precut sheet (125) and the male mould (220) or the female mould (210), to form the frame structure (130), injecting liquid polymer (230) into a second cavity (320) formed in the male mould (220), forcing the precut sheet (125) of fiber‐based material to deform into at least one third cavity (330) arranged in the female mould (210) such that the shoulder (110) is formed in the wall portion (120), extending outwards from the fiber‐based wall portion (120). There is also disclosed a container (100) comprising a fiber‐based wall portion (120) and a frame structure (130).

BIODEGRADABLE POLYESTER RESIN, BIODEGRADABLE POLYESTER RESIN COMPOSITION, AND MOLDED BODIES THEREOF

Resumen de: EP4806935A1

Provided are a biodegradable polyester resin, a biodegradable polyester resin composition, and molded bodies thereof, which have superior biodegradability and superior hydrolysis resistance, the biodegradable polyester resin, biodegradable polyester resin composition, and molded bodies thereof containing a structural unit derived from a dicarboxylic acid component (A) and a structural unit derived from an aliphatic diol component (B) and satisfying at least one of the following Conditions (α) and (β):- Condition (α): the dicarboxylic acid component (A) contains a first dicarboxylic acid component (A1) constituted of at least one compound selected from the group consisting of an aliphatic dicarboxylic acid (a1) represented by the following formula (I) and a derivative thereof,- Condition (β): the aliphatic diol component (B) contains a first aliphatic diol (B1) constituted of at least one compound selected from an aliphatic diol (b1) represented by the following formula (II):the signs in the formulae (I) and (II) are as described in the description of this application.

PLANT-BASED BINDING AGENT

Resumen de: EP4806863A1

The present invention relates to a binding agent in the form of a mineralized plant-based aqueous biopolymer, comprising: a) between 1 % (w/w) and 90 % (w/w) of a polysaccharide selected from starch and flours; b) between 1 % (w/w) and 25 % (w/w) of an alkali metal hydroxide, alkaline earth metal hydroxide, or tri-, tetra-, or pentavalent cation; c) between 5 % (w/w) and 70 % (w/w) of silicic acid or a salt thereof (silicates); d) between 1 % (w/w) and 40 % (w/w) of a source of silicon or another metal; and between 0.1 % (w/w) and 15 % (w/w) of sodium hexametaphosphate.

COMPOSITE BIOPLASTIC MATERIAL AND METHODS

Resumen de: GB2636057A

A bioplastic film includes a first surface and a second surface, wherein the first surface denotes an inner facing surface and the second surface denotes an exterior facing surface, wherein the bioplastic film is comprised of a polypeptide-based or polysaccharide-based biopolymer, or a mixture of polypeptide- based and polysaccharide based biopolymer, and a bioplasticiser substance; and wherein the inner product-facing surface of the bioplastic film comprises a coating that includes alpha eleostearic acid as a major component. The bioplastic may be chosen from gelatine, starch, cellulose, glycogen, chitosan, pectin, carrageen, or derivatives thereof. The bioplasticiser may be chosen from castor oil, palm oil, citrates, glycolates, succinates, glutamates, stearates, oleates cadanols or polyhydric alcohols. Preferably, the bioplasticiser is poly(glycerol-citrate) (PCG). Preferably the coating is tung oil or bitter melon seed oil. In an embodiment, the bioplastic is pectin, the bioplasticiser is PCG and the coating is tung oil. The films are preferably used in packaging and methods for making them are also disclosed.

ALIPHATIC POLYESTER, POLYESTER COMPOSITION CONTAINING SAME, AND USE THEREOF

Resumen de: EP4806936A1

The present invention provides an aliphatic polyester, a polyester composition containing the same, and use thereof. The aliphatic polyester includes a dicarboxylic acid residue, a diol residue, and a branching agent residue; the dicarboxylic acid residue includes the following residues: a1) based on a total molar percentage content of a1) and a2) as 100 mol%, 71-89 mol% of a succinic acid residue; and a2) based on the total molar percentage content of a1) and a2) as 100 mol%, 11-29 mol% of a sebacic acid residue; the diol residue is selected from a 1,4-butanediol residue with a molar content at least equal to that of the dicarboxylic acid residue; and based on a total mass of the aliphatic polyester as 100 wt%, a mass percentage content of the branching agent residue is 0.09-0.22 wt%. The aliphatic polyester solves the problem of low heat sealing strength of aliphatic polyesters.

ALIPHATIC POLYESTER, POLYESTER COMPOSITION CONTAINING SAME, AND USE THEREOF

Nº publicación: EP4806937A1 16/09/2026

Solicitante:

KINGFA SCIENCE & TECHNOLOGY CO [CN]
ZHUHAI KINGFA BIOMATERIAL CO LTD [CN]
LIAONING KINGFA BIOMATERIAL CO LTD [CN]
KINGFA SCI. & TECH. CO., LTD.
Zhuhai Kingfa Biomaterial Co., Ltd.
Liaoning Kingfa Biomaterial Co., Ltd.

Resumen de: EP4806937A1

0001 The present invention provides an aliphatic polyester, a polyester composition containing the same, and use thereof. The aliphatic polyester includes a dicarboxylic acid residue and a diol residue; the dicarboxylic acid residue includes the following residues: a1) based on a total molar percentage content of a1) and a2) as 100 mol%, 61.2-69 mol% of a succinic acid residue; and a2) based on the total molar percentage content of a1) and a2) as 100 mol%, 31-38.8 mol% of a sebacic acid residue; and the diol residue is selected from a 1,4-butanediol residue with a molar content at least equal to that of the dicarboxylic acid residue. In the present invention, the aliphatic polyester has good uniformity in terms of transverse and longitudinal tear resistance, high tensile strength, and a short biological disintegration period under home composting conditions, thereby meeting home composting requirements.