Resumen de: EP3476594A1

Biocompatible laminate structure comprising an alternating stack of layers from polymers A and B or polymer blends AC and BD having the sequence -A-[B-A-] n - or AC-[BD-AC-] n with n from 4 to 36, wherein the layer thickness of layers A or AC and layers B or BD is less than 3 µm, wherein A and B are thermoplastic polymers and C and D are thermoplastic elastomers, at least part of the monomeric building blocks of polymer A, B or A and B are from renewable sources wherein the thermoplastic polymer B has functional barrier properties, wherein the amount of the thermoplastic elastomers C and D in the polymer blends AC and BD is each from 3 to 45 wt.-%, and polymer B and elastomer D are essentially incompatible.

Resumen de: EP4043353A1

A method for manufacturing a cellulose product, comprising the steps: dry forming a cellulose blank in a dry forming unit; arranging the cellulose blank in a forming mould; heating the cellulose blank to a forming temperature in the range of 100°C to 200°C; and pressing the cellulose blank in the forming mould with a forming pressure of at least 1 MPa.

Resumen de: US2023174749A1

The present disclosure provides biodegradable and compostable playdough compositions. In addition, the present disclosure also relates to playdough compositions based on recycled breads as a primary constituent. Processes of manufacturing the playdough compositions is also disclosed.

Resumen de: WO2023102457A1

An array of absorbent article packages is described. The array includes first and second packages having first and second package materials that include natural fibers, respectively. The first and second packages include a plurality of panels and a plurality of seals enclosing one or more absorbent articles therein. A portion of the first package material exhibits a water vapor transmission rate under stress conditions "SCWVTR" in accordance with ASTM F1249, as modified herein, which is about 300 g/(m2 * day) or less. Each of the one or more absorbent articles in the second package comprises an absorbent core having less superabsorbent polymer than the absorbent cores of the one or more absorbent articles in the first package, and the one or more absorbent articles in the first and second packages are made by or on behalf of the same manufacturer.

Resumen de: WO2023099585A1

The invention pertains to wrapper (22) for a tampon (10), said wrapper comprising a layer consisting essentially of cellulosic fibers (33), a layer of sealing agent (34) arranged onto the layer of cellulosic fibers (33) wherein the layer consisting essentially of cellulosic fibers (33) comprises a basis weight comprised between 15 gsm and 90 gsm. The invention also relates to an assembly comprising a tampon (10) and such wrapper (22).

Resumen de: US2023174750A1

A biodegradable polymer includes starch groups, a polyvinyl alcohol (PVA) backbone having a crosslinked layered configuration and a Schiff base structure bonded to the starch groups. The PVA backbone has double bonds, and the starch groups have reversible acetal linkages. The biodegradable polymer is produced by mixing starch and water; mixing partially hydrolyzed polyvinyl alcohol (PVA) and water; mixing the starch solution with the PVA solution; mixing in a catalyst; and mixing in a cross-linking agent and a dialdehyde.

Resumen de: US2023175094A1

A method of processing iron ore fines from various possible sources, with particle size up to 0.15 mm (through 100 mesh sieve) with no or limited comminution, directly into the intense mixer, with a set of binders in specific proportions, aiming to optimize physical and metallurgical properties of the pellets with minimal binder addition, thus not compromising the quality of steel products. The binders are starch, sodium silicate and sodium hydroxide, among others. The mixture with adjusted moisture content goes through conventional balling discs or drums and size screening. The green pellets then undergo drying with forced air at around 150° C. for a short time. The pellets obtained have excellent metallurgical properties, and compression resistance around 70 kgf/pellets, without the high and undesirable economic and environmental costs of the conventional indurating process. An alternative embodiment (FIG. 3) considers indurating the pellets at temperatures below 1,200° C. to obtain similar mechanical resistance than pellets made by the conventional induration process, with temperatures above 1,300° C.

Resumen de: US2023175172A1

The disclosure relates to systems and methods for improving the manufacturing of silk solutions and powders containing silk fibroin obtained from silkworm cocoons. The solutions and powders can be used to improve the post-harvest preservation of perishables and to improve the performance of packaging, including biodegradable packaging.

Resumen de: US2023173799A1

A sachet product that includes a biodegradable and/or home compostable sachet comprising a front film and a back film. In some examples, the front film and back film can include a middle layer that can contain paper with greater than 85% cellulose and an inner layer that can include different material, including but not limited to polyvinyl alcohol or polyhydroxylalkonate. The sachet can include a compartment adapted for storing a solid article where the solid article is an open cell foam. The open cell foam can include a water-soluble polymer and a surfactant.

Resumen de: WO2023100789A1

Provided is a water-soluble film for packaging a liquid detergent, the water-soluble film having excellent transparency and making it possible to improve the tensile strength of a water-soluble film comprising an anion-group-modified polyvinyl alcohol resin as a polyvinyl alcohol resin even when the wall thickness of the water-soluble film is reduced. This water-soluble film for a package capsule of a liquid detergent contains an anion-group-modified polyvinyl alcohol resin as a polyvinyl alcohol resin, a plasticizer, and silica particles that are not subjected to a hydrophobization treatment. The silica particles have an average particle diameter of 0.1-4.6 μm and a specific surface area of 10-490 m2/g, and are contained in the water-soluble film in an amount of 0.5-10 parts by mass per 100 parts by mass of the polyvinyl alcohol resin.

Resumen de: US2023174290A1

A microwave popcorn bag for containing and heating popcorn kernels in a microwave oven. The bag is constructed of a laminated fibrous material and comprises a base panel, top panel, side panels, and interior space. The side panels have gussets with fold areas and fold lines that are adjacent to the base panel and that enable the bag to expand. An oil-resistant microwave susceptor film is laminated with the fibrous material and extends laterally across the base panel and the fold lines into the fold areas. Microwave interactive material is confined to the base panel. As the popcorn is heated, the bag expands and the microwave susceptor film forms a tray structure that collects oil and resists it penetrating through the fibrous material.

Resumen de: WO2023097359A1

A biobased coating and method of forming and use of the same is disclosed. The biobased coating can be used, for example, in packaging and food receptacles or as a sacrificial layer. The coating includes (a) a cellulose, (b) lignin and/or (c) natural latex. Since the coating does not use wax or petrochemically derived polymers, it is eco-friendly to produce and biodegradable. The biobased coating can be formed on an external surface of a substrate, such as, e.g., paper or pulp starch, corrugated cardboard, mushroom (including mycelium), seaweed, a fabric, concrete or metal.

Resumen de: WO2023098008A1

The present invention relates to the field of oil-water separation. Disclosed in the present invention are a high-strength starch frozen gel having super-hydrophobicity and a preparation method therefor. According to the present invention, compounding a small amount of polyvinyl alcohol (less than 10 wt%, relative to dry starch) and starch improves the strength of starch frozen gel, and the starch frozen gel is not easy to crack and damage in chemical and physical processing processes. Moreover, the starch frozen gel is modified by hexadecyl trimethoxysilane and tetraethoxysilane, so that the starch frozen gel is endowed with a super-hydrophobic characteristic. The used starch and polyvinyl alcohol are both biodegradable materials, and the preparation process does not relate to a modification reagent having toxicity and pollution, and conforms to the green and environmental protection requirements. The prepared high-strength super-hydrophobic starch frozen gel shows excellent water repellency and oil absorption, and is suitable for cleaning work of marine oil leakage.

Resumen de: WO2023102462A1

A stent for a respiratory organ includes a bioabsorbable polyester copolymer. The bioabsorbable polyester copolymer is a polyester copolymer having residues of two kinds of ester bond forming monomers as main constituent units, and where the two kinds of ester bond forming monomers are referred to as monomer A and monomer B, respectively, an R value given by the following formula is 0.25 or larger and 0.99 or smaller: R = [AB]/(2[A][B]) 100. In the formula, [A] is a mole fraction (%) of monomer A residues in the polyester copolymer; [B] is a mole fraction (%) of monomer B residues in the polyester copolymer; and [AB] is a mole fraction (%) of structures (A-B and B-A) in which a monomer A residue and a monomer B residue are adjacent to each other in the polyester copolymer.

Resumen de: WO2022026362A1

A biodegradable polymeric composition for food contact applications is disclosed. This polymeric composition includes at least (1) from about 5 weight percent to about 95 weight percent poly(hydroxyalkanoates); (2) from about 5 weight percent to about 95 weight percent of at least one biodegradable polymer selected from the group consisting of poly(butylene succinate), poly(butylene succinate-co-adipate), poly(butylene adipate-co-terephthalate, poly(caprolactone), poly(lactic acid), cellulose esters (such as cellulose acetate) thermoplastic starch, and mixtures thereof; and (3) from about 0.1 weight percent to about 5 weight percent of a nucleating agent.

Resumen de: WO2022026782A1

A package of one or more absorbent articles is disclosed. The package includes a package material comprising natural fibers. The package material forms a front panel, a back panel opposite the front panel, a first side panel, a second side panel opposite the first side panel, a top panel, and a bottom panel opposite the top panel. The panels define an interior compartment, wherein the one or more absorbent articles are disposed in the interior compartment. At least three of the panels are free of seams. The package material has a Basis Weight of between about 50 gsm and about 120 gsm, according to the Basis Weight Test Method. The package is recyclable.

Resumen de: WO2022026716A1

A multi-layered packaging film includes (a) an outer print layer, (b) an inner product-side layer, and (c) a lamination layer interposed between the outer print layer and the inner product-side layer.

Resumen de: GB2597693A

An agricultural waste-based packaging material which may comprise bagasse, may comprise approximately 75% renewable agro waste and 25% softwood pulp. Example compositions are provided including cellulose, hemicellulose, lignin, sugar, minerals and ash. The material may comprise a base and a coating, the base may be paper, the coating may be a waterborne coating with high grease and oil resistance and good heat sealability, this coating may comprise plastic which may be polylactic acid (PLA). Alternatively the coating may be wax based. The material may comprise sugar beat waste. Included is a claim specific to a packaging material comprising a bagasse based paper core which may include a coating on one or both sides and claims to a product packaged in said materials and a process for making said materials.

Resumen de: WO2022026781A1

A package (1) of one or more absorbent articles is disclosed. The package (1) includes a package material, wherein the package material has natural fibers and exhibits an MD tensile strength of at least 5.0 kN/m and an MD Stretch of at least 3 percent, each as determined via ISO 1924-3 as modified herein. The package (1) further includes a plurality of panels, including a consumer-facing panel. The package is sealed.

Resumen de: WO2022027047A1

A biodegradable paper laminate comprising a water-dispersible barrier against permeation.

Resumen de: WO2022026783A1

A package of one or more absorbent articles is disclosed. The package has a package material including natural fibers. The package has a plurality of panels, including a consumer-facing panel, and wherein the package is sealed such that the one or more absorbent articles are completely enclosed therein. The package material has a basis weight of between 50 gsm to 120 gsm, more preferably between 60 gsm to 105 gsm or most preferably between 70 gsm to 90 gsm, as determined via ISO 536 as modified herein. The package material is recyclable.

Resumen de: EP4190291A1

The invention pertains to wrapper (22) for a tampon (10), said wrapper comprising a layer consisting essentially of cellulosic fibers (33), a layer of sealing agent (34) arranged onto the layer of cellulosic fibers (33) wherein the layer consisting essentially of cellulosic fibers (33) comprises a basis weight comprised between 15 gsm and 90 gsm. The invention also relates to an assembly comprising a tampon (10) and such wrapper (22).

Resumen de: GB2613475A

An edible film composition for a packaged dosage form comprises a film forming substance which comprises at least one cellulose derivative or cellulose based polymer or polysaccharide polymer or starches; at least one plasticizer; and water. The edible film may comprise at least one flavouring agent and at least one colouring agent and the film may disintegrate, or dissolve without leaving substantial residue which needs to be swallowed or ejected from the mouth. A ready to use dosage composition may be wrapped within the edible film, which may have a thickness in the range between 1 to 30 microns. A method for preparing the edible film composition and dosage form comprises adding cellulose derivative and water in a reaction vessel under continuous stirring conditions to obtain a homogenous mixture; adding plasticizer, flavouring agent and colouring agent to the homogenous mixture to obtain a second homogenous mixture; de-aerating the second homogenous mixture under vacuum; coating the de-aerated mixture on a polyethylene (PET) substrate and drying using hot air; and peeling the coated film to obtain the edible film composition. The film may be shredded to make edible glitters or flavouring films.

Resumen de: EP4190840A1

The subject of the present invention is to provide a resin material in which pulp and a thermoplastic resin are uniformly mixed, and which is easy to mold. Provided is a molding resin material comprising pulp having a 50% average particle size (D50) on a volume basis measured by a laser diffraction/scattering method of 100 µm or less, preferably 10 to 90% by mass of a pulverized product of hardwood chemical pulp, and further comprising a thermoplastic resin such as a polyolefin-based resin and a polylactic acid-based resin.