Abstract: Provided are: a laminate film which is equipped with a vapor-deposited aluminum oxide film exhibiting high barrier performance and excellent so-called retort resistance, and also exhibits favorable adhesion between the vapor-deposited aluminum oxide film and a plastic substrate even after undergoing a hydrothermal treatment; a barrier laminate film containing the laminate film; and a barrier packaging material which uses the barrier laminate film.

Abstract: The present invention addresses the problem of providing a barrier resin film exhibiting excellent barrier properties without adopting a multilayer structure such as the structures used by the prior art. A barrier resin film obtained by forming a vapor-deposited aluminum oxide film on the surface of a resin substrate, wherein an elementally bonded structural unit represented by Al3 is distributed in the vapor-deposited aluminum oxide film, and the intensity ratio (Al3/Al2O3×100) of the maximum Al3 concentration elementally bonded structure section according to Time-of-Flight secondary ion mass spectrometry (TOF-SIMS) is 1-20, inclusive.

Abstract: The present invention addresses the problem of providing a barrier resin film exhibiting excellent barrier properties without adopting a multilayer structure such as the structures used by the prior art. A barrier resin film obtained by forming a vapor-deposited aluminum oxide film on the surface of a resin substrate, wherein an elementally bonded structural unit represented by Al3 is distributed in the vapor-deposited aluminum oxide film, and the intensity ratio (Al3/Al2O3×100) of the maximum Al3 concentration elementally bonded structure section according to Time-of-Flight secondary ion mass spectrometry (TOF-SIMS) is 1-20, inclusive.

Abstract: Provided are: a laminate film which is equipped with a vapor-deposited aluminum oxide film exhibiting high barrier performance and excellent so-called retort resistance, and also exhibits favorable adhesion between the vapor-deposited aluminum oxide film and a plastic substrate even after undergoing a hydrothermal treatment; a barrier laminate film containing the laminate film; and a barrier packaging material which uses the barrier laminate film.

Abstract: The invention provides a gas barrier film with low deterioration in the gas barrier property before and after high-temperature hot water treatment. The gas barrier film has a gas barrier coating film, formed as a composite film comprising a network structure having a mesh structure with Si—O—Si bonds as the basic lattice and a water-soluble polymer crystallized as microcrystals, incorporated into the mesh of the network structure, wherein a barrier coating agent, obtained by mixing a condensate solution of an alkoxysilane hydrolysate prepared as a mixed solution in which the proportion of bonded states of the silicon atoms of the condensate with Q1 and Q2 structures is at least 60% of the total silicon atoms, with a crystalline water-soluble polymer, is coated on a base material film, either after forming or without forming an aluminum oxide vapor deposition film, to form a coating layer.

Abstract: The invention provides a gas barrier film with low deterioration in the gas barrier property before and after high-temperature hot water treatment. The gas barrier film has a gas barrier coating film, formed as a composite film comprising a network structure having a mesh structure with Si—O—Si bonds as the basic lattice and a water-soluble polymer crystallized as microcrystals, incorporated into the mesh of the network structure, wherein a barrier coating agent, obtained by mixing a condensate solution of an alkoxysilane hydrolysate prepared as a mixed solution in which the proportion of bonded states of the silicon atoms of the condensate with Q1 and Q2 structures is at least 60% of the total silicon atoms, with a crystalline water-soluble polymer, is coated on a base material film, either after forming or without forming an aluminum oxide vapor deposition film, to form a coating layer.