Kuraray Co., Ltd.

Manabu Shibata

Tatsuya Oshita

Kentaro Yoshida

Wataru Hirose

Ryoichi Sasaki

Mamoru Omoda

Goki Uehara

Osamu Kazeto

Atsuhiro Nakahara

Takehiro Miyamoto

Masakazu Nakaya

Noboru Higashida

The composite structural material of the present invention includes a base (X) and a layer (Y) stacked on the base (X). The layer (Y) includes a reaction product (R) of a metal oxide (A) and a phosphorus compound (B). In the infrared absorption spectrum of the layer (Y) in the range of 800 to 1400 cm, the wave number (n) at which the infrared absorption reaches maximum is in the range of 1080 to 1130 cm.

Method for producing composite structural material

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, a wavenumber (n) at which maximum infrared absorption occurs is in a range of 1080 to 1130 cm. A metal atom constituting the metal oxide (A) is essentially an aluminum atom.

Multilayer structure, device using the same, method for producing the multilayer structure, and method for producing the device

A composite structure disclosed includes a base (X) and a layer (Y). The layer (Y) includes a mixture of a metal oxide (A), a phosphorus compound (B), and a compound (L) (silicon compound). Examples of the phosphorus compound (B) and the compound (L) include a compound containing a site capable of reacting with the metal oxide (A). When the number of moles of metal atoms (M) derived from the metal oxide (A) is denoted by Nand the number of moles of Si atoms derived from the compound (L) is denoted by N, 0.01&#x2266;N/N&#x2266;0.30 is satisfied. When the number of moles of phosphorus atoms derived from the phosphorus compound (B) is denoted by N, 0.8&#x2266;N/N&#x2266;4.5 is satisfied.

Composite structure, packaging material and formed product using same, production methods thereof, and coating liquid

A composite structure disclosed includes a base (X) and a layer (Y) stacked on the base (X). The layer (Y) includes 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). A peak for a binding energy of an oxygen-atom 1s orbital observed by X-ray photoelectron spectroscopy of the layer (Y) is located at 532.0 eV or higher, and the peak has a half width of less than 2.0 eV.

Composite structure, product using same, and method for producing composite structure

Composite structural material formed product and packaging material using the same, method for producing the composite structural material, and coating liquid

The layered product of the present invention has a base, and a gas barrier layer stacked on the base. The gas barrier layer is formed of a composition that includes a hydrolyzed condensate of a compound (L) containing a hydrolyzable characteristic group, and a neutralized product of a polymer (P) containing at least one functional group selected from the group consisting of carboxyl group and carboxylic acid anhydride group. The compound (L) includes a compound (L) and a compound (L). The compound (L) and the compound (L) each contains a silicon atom to which the hydrolyzable characteristic group is bonded. The compound (L) contains an organic group having amino group. The compound (L) does not contain an organic group having amino group. At least part of the &#x2014;COO&#x2014; group in the at least one functional group contained in the polymer (P) is neutralized with a divalent or higher valent ion (E) of a metal element that has a higher electronegativity than calcium.

Layered product, packaging material and formed product using the same, and method for producing the layered product

The formed product of the present invention is a formed product selected from the group consisting of a vertical form fill seal pouch, a container cover and a vacuum packaging pouch. The formed product is formed using a gas barrier layered product. The gas barrier layered product includes a base, and at least one layer with gas barrier properties that is stacked on the base. The layer is formed of a composition that includes a hydrolyzed condensate of a compound (L) and a neutralized product of a polymer (X) containing a carboxyl group or a carboxylic acid anhydride group. The compound (L) includes a compound (A) that contains M(Al, Ti or Zr) to which a hydrolyzable characteristic group is bonded and a compound (B) that contains Si to which a hydrolyzable characteristic group is bonded. At least part of &#x2014;COO&#x2014; group of the polymer (X) is neutralized with a metal ion having a valence of at least two. At least 80 mol % of the compound (B) is a compound expressed by a specific formula. The ratio of [the number of moles of Min the compound (A)]/[the number of moles Si in the compound (B)] is in the range of 0.1/99.9 to 35.0/65.0.

Formed product

Provided is a paper container having a window and being formed of a laminate that includes at least a paper layer and a gas barrier laminate, the paper layer having a cutout part for the window, the cutout part being covered with the gas barrier laminate, and the gas barrier laminate including a substrate and a gas barrier layer laminated on at least one surface of the substrate, wherein the gas barrier layer is formed of a composition containing a polymer having at least one functional group selected from a carboxyl group and a carboxylic anhydride group, and wherein &#x2014;COO&#x2014; groups contained in the at least one functional group are neutralized at least partly with a metal ion having a valence of two or more.

Paper container

Provided is a gas barrier layered product including a base material and a layer stacked on at least one surface of the base material, wherein the layer is formed of a composition including: a hydrolyzed and condensed product of at least one compound (L) containing a metal atom to which at least one characteristic group selected from a halogen atom and an alkoxy group has been bonded, wherein the compound (L) contains at least one compound (A) and at least one compound (B), wherein a mole ratio of the compound (A) / the compound (B) is in a range of 0.5/99.5 to 40/60; and a neutralized product of a polymer containing at least one functional group selected from a carboxyl group and a carboxylic anhydride group, wherein at least 55 mol % of a &#x2014;COO&#x2014; group contained in the at least one functional group has been neutralized with a metal ion having a valence of two or more. Also provided is a method for producing the gas barrier layered product.

Gas barrier layered product and packaging medium, and method for producing gas barrier layered product

A gas barrier layered product including a base material and a layer stacked on a surface of the base material, wherein the layer is formed of a composition including: a hydrolyzed and condensed product of a compound (L) containing a metal atom to which a group selected from a halogen atom and an alkoxy group is bonded, and a compound (A) in which an organic group selected from a halogen atom, a mercapto group and a hydroxyl group is further bonded to the metal atom; a neutralized product of a polymer containing a functional group selected from a carboxyl group and a carboxylic anhydride group, wherein at least 40 mol % of a &#x2014;COO&#x2014; group contained in the functional group has been neutralized with a metal ion having a valence of two or more; and a compound (D) bonded to both the &#x2014;COO&#x2014; group and a group on the surface of the hydrolyzed and condensed product of the compound (L). A method for producing the gas barrier layered product.

Gas barrier layered product, method of manufacturing the same and packaging medium using the same

Provided is a gas barrier layered product including a base material and a layer stacked on at least one surface of the base material, wherein the layer is formed of a composition including: a hydrolyzed and condensed product of at least one compound (L) containing a metal atom to which at least one characteristic group selected from a halogen atom and an alkoxy group has been bonded, wherein the compound (L) contains at least one compound (A) and at least one compound (B), wherein a mole ratio of the compound (A)/the compound (B) is in a range of 0.5/99.5 to 40/60; and a neutralized product of a polymer containing at least one functional group selected from a carboxyl group and a carboxylic anhydride group, wherein at least 55 mol % of a &#x2014;COO&#x2014; group contained in the at least one functional group has been neutralized with a metal ion having a valence of two or more. Also provided is a method for producing the gas barrier layered product.

Growing community of inventors

Kurashiki, Japan

Manabu Shibata