Resumen de: US20260327458A1
A method of adhering substrate surfaces to one another comprises applying a copolyester resin mixture to the surfaces and contacting the surfaces with one another in the absence of heat to form a cold seal. The copolyester resin may be sulfonated and the reaction product of (a) at least two diols comprising ethylene glycol at a mole fraction of at least about 0.25 and (b) at least three diacids or diesters comprising: (i) a sulfomonomer at a mole fraction of at least 0.02, preferably at least 0.07; (ii) at least one aromatic diacid or diester; and (iii) at least one aliphatic diacid or diester. The ratio of aromatic to aliphatic diacids or diesters may be between about 75/25 and about 45/55, and the glass transition temperature of the resin may be between about −25 °C and about 15 °C. The resin may be solvated and preferably is food grade compliant and compostable.
Resumen de: US20260327859A1
A method for controlling fiber cross-alignment in a nanofiber membrane, comprising: providing a multiple segment collector in an electrospinning device including a first and second segment electrically isolated from an intermediate segment positioned between the first and second segment, collectively presenting a cylindrical structure, rotating the cylindrical structure around a longitudinal axis proximate to an electrically charged fiber emitter; electrically grounding or charging edge conductors circumferentially resident on the first and second segment, maintaining intermediate collector electrically neutral; dispensing electrospun fiber toward the collector, the fiber attaching to edge conductors and spanning the separation space between edge conductors; attracting electrospun fiber attached to the edge conductors to the surface of the cylindrical structure, forming a first fiber layer; increasing or decreasing rotation speed of the cylindrical structure to alter the angular cross-alignment relationship between aligned nanofibers in adjacent layers, the rotation speed being altered to achieve a target relational angle.
Resumen de: US20260327410A1
0000 The present disclosure concerns containments that are biodegradable. In some aspects, the containments include at least one biopolymer layer that includes one or more polymeric compounds. In some aspects, the containments include at least one material layer that includes one or more composites. In some aspects, the biopolymer layer is of a composite of one or more polymeric compounds and at least one material. In some aspects, the containment is an assembled collection of at least two parts. In some aspects, the biopolymer layers of each part of fused by heat sealing.
Resumen de: WO2025128797A1
Disclosed are biodegradable compositions, suitable for using in packaging, containing an Ulva polysaccharide, a nanomaterial, a non-Ulva biomass, and a non-phthalate plasticizer, and methods of forming thereof.
Resumen de: MX2026007237A
A laid fabric is provided. The laid fabric includes a first set of filaments extending generally parallel in a first direction; a second set of filaments extending generally parallel in a second direction, wherein the second set of filaments are laid adjacent to the first set of filaments; a third set of filaments extending generally parallel in the first direction, wherein the third set of filaments are laid adjacent to the second set of filaments; wherein the first set of filaments, the second set of filaments, the third set of filaments, or combination thereof include a biodegradable yarn; and a binder coating the first set of filaments, the second set of filaments, the third set of filaments, or combination thereof, wherein the binder includes a biodegradable polymer. Further provided is an absorbent article and an erosion blanket.
Resumen de: EP4825906A1
The present invention relates to a composition comprising a starch derived from a bulb or a derivative thereof, and a plasticizer, wherein a total amount of the starch derived from a bulb or the derivative thereof and the plasticizer is 50 mass% or more with respect to a total mass of the composition.
Resumen de: WO2025125548A2
A dry-formed cellulose product comprising interconnected cellulose fibres. The cellulose product is arranged as a three-dimensional compressed fibre structure with an inner side and an outer side, where the inner side is delimiting an inner volume configured for holding one or more articles. The outer side comprises at least one structured zone, where the at least one structured zone is formed by a base surface and a plurality of grip elements.
Resumen de: EP4825918A1
The resin composition of the present disclosure is biodegradable by including a biodegradable polymer and a biodegradable nucleating agent, and exhibits excellent productivity during processing such as injection molding, extrusion molding, and sheet extrusion due to a high crystallization rate.
Resumen de: EP4279528A1
A biodegradable polyester resin composition includes: a polyester resin including a diol, an aromatic dicarboxylic acid and an aliphatic dicarboxylic acid; and 5000 ppm to 20000 ppm of a hydrophilic regulator having a molecular weight of 400 to 1300.
Resumen de: MX2022015472A
The disclosure is directed to methods of manufacturing protective packaging materials, as well as the protective packaging materials produced using the disclosed methods. These packaging materials can be biodegradable, compostable, and/or recyclable.
Resumen de: EP4825934A2
A composite structure for use in tiling surfaces is disclosed. The composite structure can include a fiber matrix impregnated with a water-activated setting material. The composite structure can be wet and then compressed between a tile and an application surface. The composite structure can cure to provide a support surface for the tile.
Resumen de: WO2025126090A1
The present invention relates to a liquid-resistant multiply paper or paperboard, comprising: a cellulose-based back ply, wherein said back ply comprises at least two different internal sizing agents in a total amount of 2-10 kg/ton, based on the total dry weight of the back ply; a cellulose-based top ply, wherein said top ply comprises a single internal sizing agent in a total amount of 0.1-5 kg/ton, based on the total dry weight of the top ply, and wherein the total amount of internal sizing agent in the top ply is lower than in the back ply; and a first surface sizing layer applied on the outermost surface of the back ply, wherein the first surface sizing layer has a coat weight of 0.5-3 g/m2 and comprises at least one hydrophobic surface sizing agent and at least one binder. The invention further relates to a method for manufacturing a liquid-resistant multiply paper or paperboard.
Resumen de: US20250072487A1
An oral pouch packaging material, an oral pouch manufactured using the oral pouch packaging material, and a method of preparing an oral pouch packaging material are provided. The oral pouch packaging material includes 0% by weight (wt %) to 40 wt % of a cellulose-based staple fiber, 20 wt % to 80 wt % of a pulp fiber, 20 wt % to 60 wt % of a thermoplastic resin fiber, and 0 wt % to 5 wt % of a binder, and is prepared by a wet method.
Resumen de: WO2025076732A1
The present invention is directed to a biodegradable flexible package in combination with a liquid personal care composition comprising a package comprising at least one biodegradable polymeric layer and an inorganic layer; a liquid personal care composition comprising from about 14%to about 50%water; from about 20%to about 70%of a humectant; wherein there is a Water Activity (Aw) of about 0.40 to about 0.90.
Resumen de: WO2025040607A1
The present invention relates to a method of producing a moulded pulp article (1), the method comprising: a) shaping the pulp (2); b) applying a composite phase (3) comprising a polymer and particles (4) of metal, metalloid, or oxides thereof to the pulp; and c) converting the composite phase (3) to a coating (5) comprising the polymer and a continuous barrier (6) at least partially embedded within the polymer, the continuous barrier (6) comprising metal, metalloid, or oxides thereof; as well as moulded pulp articles.
Resumen de: MX2019006787A
The present invention relates to porous microparticles of a biodegradable polymer, and a polymer filler comprising the same.
Resumen de: US2020299024A1
0001 The proposed product relates to the field of manufacturing packaging for primarily liquid, fatty, and frozen food products or for products that contain or release fats and moisture. The present packaging, having an overlapping seam with a sealed end face, is made of a shape-giving material that consists of a base material and a protective layer applied on one side of said base material. The protective layer is elongated relative to the base material, and at the place where the shape-giving material is joined in an overlapping fashion to form a seam, the elongated protective layer is connected on the inner side of the packaging to the adjoining layer of shape-giving material without the protective layer coming into contact with the end face surface of the shape-giving material, to protect an end face without thickening the material at an overlap point and without the overlap point being excessively rigid, as well as without using an additional protective polymer tape or an expensive base material having hydrophobic properties.
Resumen de: EP4155659A1
Devices and methods for shotshell cartridges (20), particularly shotshell cartridges with biodegradable components. One or more of the casing (20), shot wad (90), spacer (92), and powder wad (50) may be formed of biodegradable materials. A biodegradable shot wad (90) is manufactured of cellulosic fibers and wax to provide obturation and gas seal properties at high pressures with high reliability.
Resumen de: US20260317660A1
Provided is a bio-polysaccharide-based polymer as well as a preparation method therefor and a use thereof. According to the preparation method, a polysaccharide material, a first monomer and a first oxidant in proportion are added for reaction, so as to obtain a first mixed system; an alcohol solvent is added into the first mixed system for reaction, so as to obtain a second mixed system; a second monomer and a second oxidant are added into the second mixed system for reaction, so as to obtain a third mixed system; a temperature-raising reaction is performed on the obtained third mixed system, so as to obtain the bio-polysaccharide-based polymer.
Resumen de: US20260316430A1
0000 A dental appliance using bio-based and bioplastics sheets is disclosed, representing a significant advancement in dental technology. The present dental appliances are prepared with single layer and multiple layers composed of one or more of a bio-based and bioplastics polymer material with minimum bio-based content or bio-mass and with a modulus ranging from approximately 800 MPA to 3,200 MPA, denoted as “HARD” and from bio-based and bioplastics polymers with bio-based content or bio-mass and modulus between about 50 MPa to 550 MPa, denoted as “SOFT”. The layers can be organized as single layer and HARD-SOFT-HARD or SOFT-HARD-SOFT multilayers combination. The present disclosure demonstrates flexibility, strength, and superior stain resistance, surpassing the performance of current petro-based polymers used in traditional and modem dental appliances.
Resumen de: WO2026215127A1
The invention concerns a biodegradable multi-layer film for a food and/or beverage packaging element comprising: - an inner mechanical supporting layer comprising an amount of a biodegradable aliphatic, aromatic or aliphatic/aromatic polyester; - a first intermediate connecting layer of a biodegradable material for connecting and/or sealing adjacent layers; - a functional layer having a barrier function to gas and/or moisture; - a second intermediate connecting layer of a biodegradable material for connecting and/or sealing adjacent layers; and - an outer mechanical supporting layer comprising an amount of a biodegradable aliphatic, aromatic or aliphatic/aromatic polyester; The multi-layer film is characterized in that it comprises - a total thickness that is equal or less than 45 µm, preferably less than 40 µm; and - a thickness ratio (r) of the total thickness of the connecting layers to the total thickness of the mechanical supporting layers that is less than 0.5, preferably less than 0.45, most preferably less than 0.3. The invention is also related to a biodegradable beverage packaging element and to a biodegradable packaging unit.
Resumen de: WO2026215718A1
The invention relates to tough and moldable biodegradable polymer compositions with high impact resistance, elongation, and mechanical strength. The compositions comprise biodegradable thermoplastic polymers, biobased plasticizers, inorganic fillers, organic acids and optionally other additives. The compositions exhibit an excellent balance between elongation-at-break greater, tensile strength, impact strength, rigidity, and melt flow index while maintaining full biodegradability within 180 to 365 days. The biodegradable resins can be produced using traditional polymer processing equipment such as twin screw extruders or batch mixers. The resins can be formed into rigid parts and end products using traditional techniques including injection molding, thin-walled injection molding, compression molding and thermoforming.
Resumen de: WO2026215741A1
A moulding compound according to the invention for producing starch-based moulded bodies comprises a base moulding compound of water, granular semi-crystalline starch and plasticiser. The base moulding compound comprises 18-73 wt.% water; 33-65 wt.% granular, semi-crystalline starch; and 5-41 wt.% plasticiser. The granular semi-crystalline starch forms, together with the liquid phase of water and plasticiser, a granularly hydrated suspension, particularly advantageously a granularly hydrated equi-suspension.
Resumen de: CH722714A1
0001 Ein Verfahren zur Herstellung von stärkebasierten Formkörpern (J), umfasst die Schritte: Bereitstellen einer fliessfähigen Formmasse (A), umfassend Wasser (B), granuläre, teilkristalline Stärke (C), Weichmacher (D) und optional Verdickungsmittel, wobei die bereitgestellte Formmasse eine erste Temperatur aufweist; Formgebung der bereitgestellten fliessfähigen Formmasse (A) zu einem Formkörper-Rohling (F); Verfestigung des Formkörper-Rohlings (F) zu einem festen Formkörper (G), wobei dazu die Temperatur des Formkörper-Rohlings (F) auf eine zweite Temperatur erhöht wird, bei welcher die fliessfähige Formmasse sich durch Transformation verfestigt; und Reduktion des Wassergehalts des festes Formkörpers (G), so dass ein getrockneter, fertiger Formkörper J entsteht.
0002 Die Erfindung betrifft auch eine Anlage und Steuerungsvorrichtung zur Herstellung von stärkebasierten Formkörpern und ein Verfahren zur Optimierung der Produktionsleistung eines Verfahrens zur Herstellung von stärkebasierten Formkörpern.
Nº publicación: US20260317006A1 15/10/2026
Solicitante:
R J REYNOLDS TOBACCO CO [US]
R.J. Reynolds Tobacco Company
Resumen de: US20260317006A1
0000 Provided herein is a moisture barrier film for packaging, such as tobacco or cigarette packaging. The film comprises polylactic acid (“PLA”) that is both biodegradable and transparent. The film includes multiple layers of PLA, with a base layer having a relatively high melting point compared to two outer layers, which have a relatively low melting point. The outer layers provide heat sealing capabilities to the film. The film is coated with a metal oxide layer comprised of aluminum oxide, titanium oxide, and/or aluminum-titanium oxide using an atomic layer deposition (“ALD”) coating method. The ALD coating to the PLA film results in a moisture transmission rate of less than 4 g/m2/day after the film has been subjected to creasing, which induces cracking of the ALD metal oxide layer.