The present disclosure relates to a multilayer film including polyalkylene carbonate, and more particularly to a multilayer film including a core layer prepared by blending polyalkylene carbonate and an ethylene vinyl acetate copolymer in a predetermined ratio, and an outer layer of polyolefin. The multilayer film does not have delamination behavior because two layers are adhered each other with a simple process without an additional step for introducing an oxygen-barrier layer even without adhesive or tie layers, and has an excellent oxygen barrier property. In addition, since an additional process for imparting barrier properties and a separate adhesive or tie layer are not required in the manufacturing method, the cost can be reduced and the layer structure can be simplified, which may greatly reduce the manufacturing cost.

The invention relates to a container closure (1, 21, 41, 61) with a sealing element (3, 23, 43, 63). The sealing element (3, 23, 43, 63) comprises a polymer composition. The polymer composition comprises a butene copolymer. The butene copolymer has a melting temperature T.sub.m of between 30° C. and 130° C., wherein the melting temperature T. is determined by the second heating curve of a DSC measurement at a heating rate of 10° C. min.sup.−1

The present invention relates to a method for manufacturing at least one layer of a film wherein the method comprises the steps of; providing a first suspension comprising microfibrillated cellulose, providing a second suspension comprising microfibrillated dialdehyde cellulose, mixing the first suspension with the second suspension to form a mixture, applying said mixture to a substrate to form a fibrous web and drying said web to form at least one layer of said film. The present invention further relates to a film comprising said at least one layer.

The invention relates to a polymer blend comprising 15 to 70 Wt. % of polyvinyl alcohol (PVOH) and/or of a PVOH copolymer as well as 30 to 85 Wt. % of a further polymer, to a method for preparing a polymer blend, to the use of a polymer blend for producing a packaging material and to a packaging material. The packaging material obtained from the polymer blend is characterized in particular by a low gas permeability and can be produced by means of cost-effective methods.

A transparent, single- or multilayer, biaxially oriented polyester film with reduced oxygen transmission rates, having a barrier coating on at least one film surface, where the barrier coating is the drying product of an aqueous coating dispersion or aqueous coating solution, that includes at least one polyanion and at least one polyethyleneimine, where the polyanion has neutralized acid groups which are carboxylate, phosphate and/or sulfate groups, and the dry thickness d of the coating is in the range of 15 nm≤d<200 nm. The biaxially oriented, coated polyester film has transparency≥88% and oxygen permeation lower at least by a factor of two than that of the uncoated biaxially oriented film. A process for the production of the biaxially oriented, coated polyester film, and also its use as oxygen-barrier film.

In a first aspect, the invention relates to a polymer composition comprising (i) a polyester; and (ii) an oxidizable organic polymer consisting of a branched or unbranched alkyl chain, which comprises at least one oxidizable C═C double bond. A second aspect of the invention relates to the use of the polymer composition according to the first aspect for the preparation of a polymer article. In a third aspect, the invention relates to a polymer article comprising the polymer composition according to the first aspect. In a fourth aspect, the invention relates to a method for preparing a polymer composition having oxygen consumption activity.

A composite for manufacturing a barrier layer, a barrier layer, a method for manufacturing the barrier layer, and a packaging material are provided. Based on the total mass of the composite as 100 parts by mass, the composite includes the following components by mass: Polyhydroxyalkanoate, 70 to 96 parts by mass; polylactic acid, 1 to 15 parts by mass; modified layered silicate, 1 to 5 parts by mass; polyalkylene carbonate, 1 to 20 parts by mass; and auxiliary agent, 1.3 to 12 parts by mass.

A composition for a food product storage container includes a polypropylene co-polymer, a tie additive, a color concentrate, and Ethylene vinyl alcohol. The ethylene vinyl alcohol may be between 3 and 10% by weight of the food product storage container. The composition further comprises small particle talc. The composition may be configured to be co-injection molded to form the food product storage container which may reduce an ingress of moisture and/or oxygen.

The disclosure relates to a thermoset omniphobic composition (such as an omniphobic polyurethane or epoxy composition) which includes a thermoset polymer with first, second, and third backbone segments. The first, second, and third backbone segments can correspond to urethane or urea reaction products of polyisocyanate(s), amine-functional omniphobic polymer(s), and polyol(s), respectively, for omniphobic polyurethanes. Similarly, the first, second, and third backbone segments can correspond to urea or beta-hydroxy amine reaction products of polyamine(s), isocyanate-functional omniphobic polymer(s), and polyepoxide(s), respectively, for omniphobic epoxies. The thermoset omniphobic composition has favorable omniphobic properties, for example as characterized by water and/or oil contact and/or sliding angles. The thermoset omniphobic composition further has favorable barrier properties, for example with respect to water vapor and oxygen transmission as well as water absorption. The thermoset omniphobic composition can be used as a coating on any of a variety of substrates to provide omniphobic properties to a surface of the substrate. Such omniphobic coatings can be scratch resistant, ink/paint resistant, and optically clear.

The present invention provides a vinyl alcohol polymer having properties comparable to the properties of vinyl alcohol polymers of solely petroleum origin, and, in using the vinyl alcohol polymer (PVA), saves petroleum resources, and reduces carbon dioxide emissions in production processes. The present invention relates to a vinyl alcohol polymer (X) obtained through saponification after polymerization of a plant-derived vinyl ester monomer (A) and a petroleum-derived vinyl ester monomer (B), and having a mole ratio (A)/(B) of 5/95 to 100/0.