Abstract: The present invention relates to a multilayer structure including a base (X), a layer (Y), and a layer (Z) disposed contiguous to the layer (Y). The layer (Y) includes a compound (A) containing a phosphorus atom and a polymer (B) having a hydroxy group and/or carboxyl group. A mass ratio between the compound (A) and the polymer (B) is 15:85 to 99:1 in the layer (Y). The layer (Z) is a layer containing aluminum atoms.

Abstract: The present invention relates to an electronic device having an electronic device body 1 the surface of which is covered by a protective sheet. The protective sheet includes a multilayer structure including a base (X) and a layer (Y) stacked on the base (X). The layer (Y) includes a metal oxide (A), a phosphorus compound (B), and cations (Z) with an ionic charge (FZ) of 1 or more and 3 or less. The phosphorus compound (B) includes a compound containing a moiety capable of reacting with the metal oxide (A). In the layer (Y), the number of moles (NM) of metal atoms (M) constituting the metal oxide (A) and the number of moles (NP) of phosphorus atoms derived from the phosphorus compound (B) satisfy a relationship of 0.8?NM/NP?4.5, and NM, the number of moles (NZ) of the cations (Z), and FZ satisfy a relationship of 0.001?FZ×NZ/NM?0.60.

Abstract: The present invention relates to a multilayer structure including a base (X) and a layer (Y) stacked on the base (X), the layer (Y) containing the following at a specific ratio: a metal oxide (A); a phosphorus compound (B) containing a moiety capable of reacting with the metal oxide (A); and cations (Z) with an ionic charge (FZ) of 1 or more and 3 or less.

Abstract: The invention provides novel processes for producing in-mold labeled containers and the containers produced using such processes. The processes involve setting a multilayered label having an oxygen barrier layer into a mold and injecting a melted resin suitable for forming a container into the mold. The process forms a container with an oxygen barrier layer. In preferred embodiments, the multilayered label has at least an oxygen absorbing resin layer containing ethylene-vinyl alcohol copolymer and an oxygen absorbent and the container is retortable.

Abstract: An electronic device provided includes an electronic device body and a protective sheet protecting a surface of the electronic device body. The protective sheet includes a multilayer structure including at least one base (X), at least one layer (Y), and at least one layer (Z). The layer (Y) contains an aluminum atom, and the layer (Z) contains a polymer (E) containing a monomer unit having a phosphorus atom. The multilayer structure includes at least one pair of the layer (Y) and the layer (Z) that are contiguously stacked. This electronic device is adapted to maintain the gas barrier properties of the protective sheet at a high level even when subjected to physical stresses.

Abstract: A product provided includes a packaging material, and the packaging material includes a multilayer structure. The multilayer structure includes at least one base (X), at least one layer (Y), and at least one layer (Z). The layer (Y) contains an aluminum atom. The layer (Z) contains a polymer (E) containing a monomer unit having a phosphorus atom. The multilayer structure includes at least one pair of the layer (Y) and the layer (Z) that are contiguously stacked. This product is excellent in gas barrier properties, and adapted to maintain the gas barrier properties at a high level even when subjected to physical stresses such as deformation and impact.

Abstract: A multilayer structure disclosed is a multilayer structure including at least one base (X), at least one layer (Y), and at least one layer (Z). The layer (Y) contains an aluminum atom. The layer (Z) contains a polymer (E) having a plurality of phosphorus atoms. The polymer (E) is a polymer of at least one monomer including a vinylphosphonic acid compound. The multilayer structure includes at least one pair of the layer (Y) and the layer (Z) that are contiguously stacked. The layer (Z) is formed by applying a coating liquid (V) which is a solution of the polymer (E) having a plurality of phosphorus atoms. The multilayer structure disclosed is excellent in gas barrier properties, and can maintain the gas barrier properties at a high level even when subjected to physical stresses such as deformation and impact.

Abstract: A shaped article including a modified ethylene-vinyl alcohol copolymer (C), wherein the modified ethylene-vinyl alcohol copolymer (C) is a product obtained by modifying an unmodified ethylene-vinyl alcohol copolymer (A) with an epoxy compound (B) having a double bond and has a degree of modification with the epoxy compound (B) of 0.1 to 10 mol % based on the monomer units of the ethylene-vinyl alcohol copolymer (A), and at least a part of the modified ethylene-vinyl alcohol copolymer (C) is crosslinked, and the gel fraction of the shaped article is 3% by weight or more. Thereby, a shaped article which contains almost no harmful crosslinking agent and which is excellent in hot water resistance, heat resistance and a gas barrier property is provided.

Abstract: Provided are a novel multilayer structure that can be used to protect a device and a device using the multilayer structure. The disclosed multilayer structure is a multilayer structure including a substrate and a barrier layer stacked on the substrate. The 3% strain tension of the substrate in at least one direction is at least 2000 N/m. The barrier layer contains a reaction product (R). The reaction product (R) is a reaction product formed by a reaction at least between a metal oxide (A) and a phosphorus compound (B). In an infrared absorption spectrum of the barrier layer in a range of 800 to 1400 cm?1, a wavenumber (n1) at which maximum infrared absorption occurs is in a range of 1080 to 1130 cm?1. A metal atom constituting the metal oxide (A) is essentially an aluminum atom.

Abstract: The invention provides novel processes for producing in-mold labeled containers and the containers produced using such processes. The processes involve setting a multilayered label having an oxygen barrier layer into a mold and injecting a melted resin suitable for forming a container into the mold. The process forms a container with an oxygen barrier layer. In preferred embodiments, the multilayered label has at least an oxygen absorbing resin layer containing ethylene-vinyl alcohol copolymer and an oxygen absorbent and the container is retortable.

Abstract: A shaped article including a modified ethylene-vinyl alcohol copolymer (C), wherein the modified ethylene-vinyl alcohol copolymer (C) is a product obtained by modifying an unmodified ethylene-vinyl alcohol copolymer (A) with an epoxy compound (B) having a double bond and has a degree of modification with the epoxy compound (B) of 0.1 to 10 mol % based on the monomer units of the ethylene-vinyl alcohol copolymer (A), and at least a part of the modified ethylene-vinyl alcohol copolymer (C) is crosslinked, and the gel fraction of the shaped article is 3% by weight or more. Thereby, a shaped article which contains almost no harmful crosslinking agent and which is excellent in hot water resistance, heat resistance and a gas barrier property is provided.

Abstract: The present invention provides a resin composition having an oxygen scavenging function. The resin composition comprises 70 to 99.9 wt % of a polyvinyl alcohol resin (A) and 0.1 to 30 wt % of a thermoplastic resin (B) other than the polyvinyl alcohol resin (A), wherein the thermoplastic resin (B) has a carbon-carbon double bond and a functional group including a hetero atom, and an oxygen absorption rate of the resin composition is 0.001 ml/m2·day or more.

Abstract: The present invention relates to a coinjection stretch blow-molded container having a layer of thermoplastic polyester (A) that has specific properties and a layer of an ethylene-vinyl alcohol copolymer resin composition (B) that includes specific minor components and has specific properties, and the thickness ratio of the layer of thermoplastic polyester (A) to the layer of an ethylene-vinyl alcohol copolymer resin composition (B) (layer (A)/layer (B)) in the container body is in the specific range. The coinjection stretch blow molded container of the present invention has excellent gas barrier properties against, for example: oxygen and carbon dioxide; moisture-proofing properties; flavor-retention properties; flavor-barrier properties; and impact delamination resistance. In addition, the coinjection stretch blow molded container of the present invention has a good appearance and can be stably produced in long-run working lines.

Abstract: The present invention provides a resin composition having an oxygen scavenging function. The resin composition comprises 70 to 99.9 wt % of a polyvinyl alcohol resin (A) and 0.1 to 30 wt % of a thermoplastic resin (B) other than the polyvinyl alcohol resin (A), wherein the thermoplastic resin (B) has a carbon-carbon double bond and a functional group including a hetero atom, and an oxygen absorption rate of the resin composition is 0.001 ml/m2·day or more.

Abstract: The present invention provides a resin composition having an oxygen scavenging function. The resin composition comprises 70 to 99.9 wt % of a polyvinyl alcohol resin (A) and 0.1 to 30 wt % of a thermoplastic resin (B) other than the polyvinyl alcohol resin (A), wherein the thermoplastic resin (B) has a carbon-carbon double bond and a functional group including a hetero atom, and an oxygen absorption rate of the resin composition is 0.001 ml/m2·day or more.

Abstract: A resin composition comprising 70 to 99.9% by weight of ethylene-vinyl alcohol copolymer (A) and 0.1 to 30% by weight of a thermoplastic resin (B) other than the ethylene-vinyl alcohol copolymer (A) is provided. In the resin composition, an ethylene content ETa (mol %) and a degree of saponification SDa (%) of the ethylene-vinyl alcohol copolymer (A) satisfy the following equations (1) and (2): 25?ETa?55??(1) 90?SDa<99, ??(2) and an oxygen absorption rate of the resin composition is 0.01 ml/m2·day or more.

Abstract: The oxygen absorptive resin composition of the present invention includes: a thermoplastic resin (a) having carbon-carbon double bonds; a gas barrier resin (b) having an oxygen transmission rate of 500 ml·20 ?m/m2·day·atm or less (20° C. 65% RH); and a transition metal salt (c). This resin composition and molded articles formed using the resin composition effectively absorb and scavenge oxygen when used to package products susceptible to degradation by oxygen, such as foods and drinks.

Abstract: The present invention provides a resin composition having an oxygen scavenging function. The resin composition comprises a gas barrier resin (A), a thermoplastic resin (B) other than the gas barrier resin (A), and a compatibilizer (C), wherein the gas barrier resin (A) has an oxygen transmission rate of 500 ml·20 &mgr;m/m2·days·atm (20° C., 65% RH) or less, the thermoplastic resin (B) has a carbon—carbon double bond, and an oxygen absorption rate of the resin composition is 0.001 m/m2·day or more.

Abstract: The present invention provides a thermoplastic resin composition having excellent oxygen absorption property. This thermoplastic resin composition comprises a thermoplastic resin (A), a multilayered polymer particle (B) and a transition metal salt (C), wherein the multilayered polymer particle (B) has at least one oxygen absorption layer, the oxygen absorption layer comprises a diene polymer (B1) containing a conjugated diene monomer as a polymerization component, and the transition metal salt (C) is contained in an amount of 1 to 5000 ppm in terms of a metal element thereof.

Abstract: The present invention relates to a coinjection stretch blow-molded container having a layer of thermoplastic polyester (A) that has specific properties and a layer of an ethylene-vinyl alcohol copolymer resin composition (B) that includes specific minor components and has specific properties, and the thickness ratio of the layer of thermoplastic polyester (A) to the layer of an ethylene-vinyl alcohol copolymer resin composition (B) (layer (A)/layer (B)) in the container body is in the specific range. The coinjection stretch blow molded container of the present invention has excellent gas barrier properties against, for example: oxygen and carbon dioxide; moisture-proofing properties; flavor-retention properties; flavor-barrier properties; and impact delamination resistance. In addition, the coinjection stretch blow molded container of the present invention has a good appearance and can be stably produced in long-run working lines.