Mitsui Chemicals Tohcello, Inc.

Daisuke Matoba

Akira Nomoto

Kazuyuki Fukuda

Takashi Uchida

Shuji Tahara

Chikako Kouda

Masako Kidokoro

Shingo Suzuki

Kenji Odagawa

Eiichi Moriya

Tatsuya Shibata

Aiko Shimakage

Masaru Shimizu

Yasuaki Shinkawa

A barrier laminate film () of the present invention includes: a base material layer (), a stress relaxation layer (), an inorganic material layer (), and a barrier resin layer () in this order. The barrier resin layer () includes an amide cross-linked compound of a polycarboxylic acid and a polyamine, and the stress relaxation layer () includes a polyurethane-based resin having an aromatic ring structure in a main chain.

Barrier laminate film

A laminate film includes a substrate layer; and a metal oxide layer which is provided on one surface or both surfaces of the substrate layer and contains a metal oxide. Further, the oxygen permeability measured under defined conditions is 20 ml/m&#xb7;day&#xb7;MPa or less and the water vapor permeability measured under conditions of a temperature of 40&#xb0; C. and a humidity of 90% RH is 2.5 g/m&#xb7;day or greater. In addition, when the K&#x3b1; beam intensity of a metal constituting the metal oxide which is obtained by performing fluorescence X-ray analysis on the metal oxide layer is set to A and the K&#x3b1; beam intensity of the metal which is obtained by performing fluorescence X-ray analysis on a metal layer formed of the metal constituting the metal oxide is set to B, A/B is equal to or greater than 0.20 and equal to or less than 0.97.

Laminate film, outer packaging bag for transfusion bag, and transfusion bag packaging body

Provided are a gas barrier resin composition, and a gas barrier composite film excellent in gas barrier properties with respect to oxygen, carbon dioxide gas, water vapor or the like, particularly in gas barrier properties even after hot water treatment. The gas barrier resin composition includes an oxazoline group-containing aqueous polymer (A), an aqueous acrylic resin (B) and/or an aqueous polyester resin (C) each at a specific concentration, wherein the ratio of the mole number of the oxazoline group to the mole number of the carboxyl group [the ratio of the mole number of the oxazoline group (x mmol) to the mole number of the carboxyl group (y mmol), which is indicated as (x/y)&#xd7;100 (mol %)], is within the specific range. The gas barrier composite film uses this composition.

Gas barrier resin composition and gas barrier composite film

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Utsunomiya, Japan

Daisuke Matoba