Alerta

BIOBASED, BIODEGRADABLE COMPOSITIONS FOR INJECTION MOLDING

Resumen de: CN120569288A

Disclosed herein are compositions for injection molding and articles made therefrom, the compositions and articles comprising at least one hydrocolloid, at least one plasticizer, at least one filler, at least one polycation and/or crosslinking agent, and at least one flowable agent. Typically, the component is derived from a biological source, such as seaweed, plants or animals. Typically, the components are made of biodegradable materials such that the compositions and articles are compostable. The composition is used to form the article by injection molding, such as a disposable food service industry product, and the article has desirable flexibility, tensile strength and water repellency.

PACKAGING FILM WITH OXYGEN TRANSMISSION

Resumen de: CN120476082A

The present disclosure relates to compostable films, and more particularly to compostable films having desirable oxygen permeation characteristics for packaging perishable items, such as seafood products. According to one aspect, the present disclosure is directed to compostable packaging films comprising a flexible packaging material defining a plurality of pores and having a barrier coating for adjusting oxygen permeability. According to one aspect, the present disclosure relates to a method of making a packaging film, the method comprising: (a) providing a polymeric film having a food-contacting inner surface and an environment-facing outer surface opposite the inner surface; (b) modifying the polymer film through micro-perforation so as to increase the oxygen permeability of the packaging film; and (c) applying a barrier coating to the outer surface to further adjust the oxygen permeability of the packaging film. In embodiments, the packaging film may be an antimicrobial film.

MARINE BIODEGRADABLE POLYMER PARTICLE GROUPS AND PRODUCTION METHOD FOR SAME

Resumen de: EP4640751A1

Marine biodegradable polymer particle groups according to the present invention comprise a polymer compound obtained by using two or more at least divalent metal cations to crosslink a water-soluble polymeric polyvalent anion that has a monovalent anionic substituent and includes at least a compound derived from alginic acid. The marine biodegradable polymer particle groups satisfy conditions (1)-(4). (1) The at least divalent metal cations are 3-30 mass% of the particle groups. (2) The difference between the maximum value and the minimum value of the atomic radii of the metal elements of the at least divalent metal cations is at least 15 Å. (3) The at least divalent metal cations of metal elements that have atomic radii of at least 150 Å are at least 25 mass% of all the at least divalent metal cations. (4) The water absorption of the particle groups is less than 300 mL/100 g.

TWO-PART CURABLE ADHESIVE, MULTILAYER BODY AND PACKAGE

Resumen de: EP4640783A1

Provided are a two-component curable adhesive containing a polyol composition (X) containing a polyester polyol compound (A) and a polyisocyanate composition (Y) containing a polyisocyanate compound (B), the polyester polyol compound (A) having a number average molecular weight in a range of 500 to 20,000, and either or both of the polyester polyol compound (A) and the polyisocyanate compound (B) being a reaction product of an aliphatic alcohol having a quaternary carbon atom and having trivalent or more hydroxy groups; a laminate; and a packaging material.

RESIN COMPOSITION AND RESIN MODIFYING AGENT

Resumen de: EP4640761A1

A resin composition including a block copolymer (I) and an aliphatic polyester-based resin (II), in which the block copolymer (I) contains a block structural unit (A) having a polylactic acid unit (a) as a main component and a block structural unit (B) having a polyester unit (b) as a main component; the polyester unit (b) contains a unit derived from an aliphatic diol (b1) and an aliphatic dicarboxylic acid (b2); the aliphatic diol (b1) has an alkyl group as a branched chain and does not have a quaternary carbon atom; two hydroxy groups in the aliphatic diol (b1) are primary hydroxy groups; and the block copolymer (I) has a melting point of lower than 180°C.

MOULDED PULP LID

Resumen de: MX2025007307A

The present invention relates to a removable lid (100) for closing in an attachment direction (190) an opening (211) of a receptacle (210) for holding food products (220), whereby the receptacle (210) has a circumferential rim portion (212) surrounding the opening (211). The lid (100) is composed of two or more individual lid parts (101, 102) that are respectively integrally made by moulding pulp and that complement each other to form the lid (100). The lid (100) comprises a cover portion (110) for covering the receptacle opening (211), a skirt portion (120) that extends from the cover portion (110) to circumferentially delimit together with the cover portion (110) a receiving space (105) for receiving the rim portion (212) inside the lid (100) when closing the opening (211) with the lid (100), and a fastening structure (140) for providing a form- and/or force-closed connection. The fastening structure (140) protrudes laterally from a lateral inner side (121) of the skirt portion (120) towards and into the receiving space (105) in a direction transversely to the attachment direction (190). Therein, at least two of the lid parts (101, 102) comprise each at least a section of the fastening structure (140). The invention relates further to as system (200) for storing food products (220), comprising said removable lid (100) and a receptacle (210) for food products.

CAVITATION-INDUCING BIODEGRADABLE POLYMERIC PARTICLES

Resumen de: WO2024134220A1

The present invention provides a cup-shaped particle comprising a first polymer and a second polymer; wherein the first polymer is a biodegradable polymer; the second polymer is a crosslinked copolymer of two or more different methacrylate monomers and at least one crosslinking agent, wherein the at least one cross-linking agent comprises one or more dimethacrylates; and wherein the cup has a cavity having an opening of at least 50 nm in size.

Eco-friendly antimicrobial edible film for packing product and manufacturing method thereof

Resumen de: KR20250154714A

본 발명에 따른 항균필름은 개질 키토산의 특징인 막 형성성과 항균성을 발현할 수 있어 식품이나 화장품의 포장 시 미생물 번식에 의한 변질을 막을 수 있어 이러한 변질에 민감한 제품의 보존성이 우수하고 필름의 물성변화 없이 항균력이 지속될 수 있다. 또한 상기 항균필름용 조성물은 상기와 같은 제품들의 포장용뿐만 아니라 항균성이 요구되는 부분의 코팅이나 블렌드도 가능한 특징을 가지며, 동시에 일정 온도 이상에서 생분해성이 발현되어 친환경적인 특성을 가진다.

Surface repair adhesive composition having easy use in the field and waterproof function and surface repair method using the adhesive composition

Resumen de: KR102877246B1

본 발명은 콘크리트 건물의 외벽 도장 보수 또는 박공 지붕의 아스팔트 시트 보수 과정에서 거친 표면을 매끈하면서 후속 도장 작업이 접착력이 향상될 수 있도록 해주는 현장에서의 간편한 사용과 방수기능을 구비하는 표면 보수용 접착 조성물 및 그 접착 조성물을 이용한 표면 보수 방법에 관한 것으로, 보수가 필요한 콘크리트 건물의 외벽 또는 박공 지붕의 아스팔트 싱글의 표면에 발생 된 균열 및 훼손되어 거칠어진 부분을 깔끔하게 처리하는 표면 처리단계(S100)와, 상기 표면 처리 후 표면 처리하는 과정에서 발생 입자를 솔 또는 수압을 통해 제거를 하여 보수하고자 하는 표면과 보수에 사용되는 도료와의 접착력이 향상되도록 하는 입자상의 물질 제거단계(S200)와, 에틸렌 비닐 아세테이트 35 내지 40 중량%, 밀크카제인 30 내지 40 중량%, 셸락 10 내지 15 중량%, 젤라틴 1 내지 3 중량%를 교반용기에 투입 후 80 내지 85℃ 조건에서 10 내지 20분 동안 1차 교반을 한 다음, 그 1차 교반단계의 용기에 조성물 전체 중량 중 증점안정제 1 내지 2 중량%을 투입하면서 10 내지 20분 동안 2차 교반을 한 다음, 그 2차 교반용기에 조성물 전체 중량 중 로진 또는 로진에스테르 1 내지 5 중량%, 증점안정제 1 내지 2 중량%을 투입하면서 10 내지 20분 동

PACKAGED LAUNDRY PRODUCT

Resumen de: EP4640573A1

The present invention relates to a packaged product with a container enclosing a laundry article. More particularly, the present invention relates to a packaged product having a flexible solid laundry article enclosed in a recyclable or biodegradable material. There is a need to create, a recyclable or biodegradable package that encloses flexible solid laundry article that are easily dissolvable in water even after long period of storage in particular under high humidity conditions and where the package is capable of protecting the laundry article from the exposure to the external conditions and holds its structure through transport and storage. The present invention provides a packaged laundry product where a flexible solid laundry is packaged in a container comprising a recyclable and/or biodegradable material. The packaged product has an increased overall amount of recyclable and/or biodegradable material and is environmentally friendly without compromising on the product attributes. Further, the flexible solid laundry article remains storage stable, and has good dissolution properties even after long storage periods.

CELLULOSE BASED FIBER MATERIAL CLOSURE DEVICE FOR A PAPER OR PAPERBOARD-BASED PACKAGE

Resumen de: WO2024133628A1

The invention relates to a closure device (1) for a paper or paperboard package (50) comprising a pour spout (100) and a cap (200). The pour spout (100) comprises a longitudinal center axis AL defining an axial direction z, a circumferential direction c, and a radial direction r. The pour spout (100) comprises an annular neck portion 102) with a first axial end (104) and a second axial end (106). The first axial end (104 comprises an annular flange portion (110) extending in the radial direction outwards from the pour spout (100). The annular flange portion (110) is for attaching the pour spout (100) to a paper or paper board container (50). The neck portion (102) comprises external threads (108a). The second axial (106) end is arranged opposite to the first axial end (104). The internal perimeter of the second axial end (106) defines a dispensing opening (118) through which contents may be poured or accessed. A seal (120) is permanently attached to a first sector Si of the second axial end (106). The seal (120) is configured to be liquid resistant at least at the area facing the dispensing opening (118). The cap (200) comprises a lid portion (210) and an annular longitudinal skirt (220) extending substantially perpendicularly from the lid portion (210). The annular longitudinal skirt (220) comprises internal threads (222) which are configured to interact releasably with the external threads (108a) of the neck portion (102). The seal (120) is arranged between the lid portion

PREPARATION METHOD FOR ENVIRONMENT-FRIENDLY NATURAL BAMBOO FIBER-MODIFIED PE COMPOSITE MATERIAL AND PRODUCT, AND USE

Resumen de: ZA202508080B

Disclosed in the present application are a preparation method for an environment-friendly natural bamboo fiber-modified PE composite material and a product thereof, and use. The composite material comprises the following raw materials in parts by weight: 20-70 parts by mass of modified bamboo fibers, 30-80 parts by mass of a PE mixed ingredient, 3-7 parts by mass of U/VLDPE-G-MA, and 0.55-1.2 parts by mass of a processing aid. According to the present invention, not only does material design strive for environmental protection, but also the traditional bamboo fiber acid and alkali treatment process is eliminated, achieving energy saving and environmental protection during production. According to the present invention, by means of optimizing the material formula, optimizing the surface treatment process of bamboo fibers, and optimizing preparation parameters and the processing process of the composite material, the flow processability of the composite material can be remarkably improved, and the processing temperature of the composite material and the product is reduced to 145 degrees celsius or below, thereby reducing carbonization and damage of the bamboo fibers.

POLYMER FILMS AND THEIR PRODUCTION AND USE

Resumen de: SA523441031B1

The invention provides a process to orient a high molecular weight polymer film, formed from molten, dispersed or dissolved state, characterized in that as a starts of this orientation process the film becomes embossed in a pattern of closely spaced dots or thin short lines, 5 thereby becoming oriented within these embossments, whereafter the orientation process is continued in one or more steps by m.d. stretching, t.d. stretching, or combined m.d. and t.d. stretching, whereby the embossed and oriented dots or lines gradually grow and develop until 10 essentially the entire film has become oriented. Fig. 1

Methods of producing packaging

Resumen de: GB2640610A

A method of producing a compostable moulded food packaging container 10, such as single serve sauce pots, having a cavity for receiving a foodstuff 22 and a lip 16 extending at least partially around the opening to which a compostable lid 18 can be adhered, comprises providing a thermoformable film 14 formed of a compostable material and thermoforming the cavity of the packaging container from the film at a temperature in the range of about 98°C to about 115°C. The method may further comprise peelably adhering the compostable lid, which preferably comprises cellulose and a polymer to the lip with a peelable adhesive 20, preferably a heat seal lacquer. The compostable material may be subjected to a shock annealing cooling process and may be formed of a nano-blend of two or more biodegradable polymers comprising a nanostructured first biopolymer in a matrix of a second biodegradable polymer. The compostable material may further comprise a filler and a compatibilizer.

A REINFORCED MOULDED FIBRE CAPSULE FOR FOOD AND BEVERAGE PREPARATION

Resumen de: MX2025006810A

The present invention concerns packaging item (1) comprising a tridimensional body (2) made of rigid or semi-rigid moulded fiber pulp, said body forming a compartment for enclosing a product and adapted to be closed by closing means, characterized in that said body (2) further comprises a reinforcing mesh (7) embedded at least partially into the mass of fiber pulp, said mesh (7) comprising fibres selected within the list of: natural plant fibres, animal fibres, biopolymer synthetic fibres, or a combination thereof, said fibres being impregnated with a dried water-soluble biopolymer, a dried water-soluble compostable polymer, a dried starch-based solution, or a combination thereof, or said fibres being impregnated with a cured polypeptide.

MULTILAYER BIODEGRADABLE FILM

Resumen de: EP4617059A1

This invention relates to a multilayer biodegradable film which is particularly suitable for the manufacture of packaging and is also characterised by appreciable optical transparency properties in addition to high level mechanical properties.

生分解性ポリマーブレンドおよびその使用

Resumen de: MX2025003923A

The present invention relates to a biodegradable polymer blend based on a biodegradable aliphatic aromatic polyester and/or aliphatic polyester comprising: The blend comprises - 10 to 80% by weight, based on the total weight of polyester a), polymer b) and polycaprolactone c), of at least one biodegradable polyester a) selected from the group consisting of aliphatic-aromatic polyesters, aliphatic polyesters, which are different from polymers b) and c), and mixtures thereof; - 18 to 88% by weight, based on the total weight of polyester a), polymer b) and polycaprolactone c), of at least one polymer b), selected from the group consisting of polyhydroxyalkanoates, polylactides, polyglycolic acid and mixtures thereof; - 2 to 72% by weight, based on the total weight of polyester a), polymer b) and polycaprolactone c), of at least one polycaprolactone c) having a viscosity number of at least 110 ml/g, in particular at least 150 ml/g, preferably at least 200 ml/g, especially at least 250 ml/g, as determined according to DIN 53728- 3:1985-1; wherein the total weight of polyester a), polymer b) and polycaprolactone c) is at least 50% by weight, based on the total weight of the blend. The present invention relates to the use of the blend for coating substrates or for producing a rigid packaging article, to a mono-layered or multi-layered film comprising at least one layer comprising a biodegradable polymer blend, as defined hereinafter and to a process for coating a substrate layer. Th

Biodegradable polymer composition using thermoplastic starch with controlled decomposition period and agricultural mulching film using the same

Resumen de: KR102877652B1

본 발명은 생분해성 수지로서 폴리부틸렌아디페이트테레프탈레이트(PBAT)와 생분해성 천연 고분자 물질로서 열가소성 전분(TPS), 첨가제로서 결합제, 분산제, 필러 또는 가소제를 포함하고, 생분해성 효소 첨가제와 분해 촉진제로 이루어지는 복합 분해 촉진제을 포함하는 것을 특징으로 하는 농업용 멀칭 필름 제조를 위한 생분해성 고분자 조성물을 제공한다. 본 발명에 따른 생분해성 고분자 조성물로 제조되는 농업용 멀칭 필름은 사용 후 폐기되는 경우에 수거된 농업용 멀칭 필름을 노지 상에 적치하는 경우에도 6개월 이상이 경과하면 60% 이상이 분해될 수 있어 별도의 처리가 요구되지 않으며 다음 해의 농작물 재배에 영향을 미치지 않게 된다.

폴리히드록시알칸산 필름, 포장체, 농림 수산업 자재, 생분해 방법, 농림 수산 소재

Resumen de: JP2024127798A

To provide a polyhydroxyalkanoic acid film which is biodegradable but minimizes the number of pinholes formed after repeated bending.SOLUTION: A polyhydroxyalkanoic acid film has a puncture strength (calculated for a thickness of 20 μm) of 80 gf or greater.SELECTED DRAWING: None

POLYMER FILMS AND THEIR PRODUCTION AND USE

Nº publicación: PL4255715T3 27/10/2025

Solicitante:

THE SUPREME INDUSTRIES LTD [IN]
The Supreme Industries Limited

Resumen de: SA523441031B1

The invention provides a process to orient a high molecular weight polymer film, formed from molten, dispersed or dissolved state, characterized in that as a starts of this orientation process the film becomes embossed in a pattern of closely spaced dots or thin short lines, 5 thereby becoming oriented within these embossments, whereafter the orientation process is continued in one or more steps by m.d. stretching, t.d. stretching, or combined m.d. and t.d. stretching, whereby the embossed and oriented dots or lines gradually grow and develop until 10 essentially the entire film has become oriented. Fig. 1