Highly Mosture Proof Filmand Method of Manufacturing the Same Technical Field

Content Provider	Semantic Scholar
Copyright Year	2017
Abstract	(57) ABSTRACT The present invention makes it possible to provide a film exhibiting an excellent oxygen-gas barrier properties and an excellent moisture proofness, the film containing at least a multivalent metal salt of a polycarboxylate-based polymer (A), the film having the density which is not lower than 1.80 g/cm; the surface ratio C. the peak surface S (3700 to 2500 cm)/the peak surface S. (1800 to 1500 cm) of an infrared absorption spectrum which is not larger than 2.5; and the peak ratio? the peak A (1560 cm)/the peak A (1700 cm) of the infrared absorption spectrum which is not smaller than 1.2, by means of applying a solution containing the polycar boxylate-based polymer (A) and the multivalent metal com pound (B) to a Substrate, thus obtaining a dried film, and thereafter treating the dried film with heat under predeter mined conditions. Accordingly, the present invention makes it possible to provide packaging materials and packaging containers for not only foods which are required not to contact an oxygen gas, but also foods, beverages, chemicals, pharma ceuticals, and precision metal parts such as electronic parts, as well as members of electronic equipment, all of which are required to be protected from moisture.
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Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article