Mitsubishi Gas Chemical Company, Inc.

Junko Baba

Hideaki Takahashi

Tomoharu Himeshima

Kazuyuki Tomita

Hideaki Watanabe

Masaki Nagata

Osamu Aoki

Tatsuo Iwai

Teruo Takeuchi

Syoichi Nito

Nahomi Aoyama

Kazuhiro Ohtsu

An oxygen absorbent composition absorbing water vapor mixed a liquid mixed (A) an aliphatic compound(s) with an unsaturated group(s) and (B) a transition metal salt(s) with (C) at least one solid selected from the group consisting of calcium oxide, calcium chloride and magnesium chloride.

Oxygen absorbent composition absorbing water vapor

An oxygen absorbent comprising an aliphatic hydrocarbon(s) with an unsaturated group(s) and/or an unsaturated fatty acid compound(s) and a catalyst containing both a transition metal salt(s) and a non-transition metal salt(s) is provided, whereby an oxygen absorbing velocity is remarkedly promoted.

Oxygen absorbent

Disclosed is a method for preserving an adhesive tape or an article using the same which comprises enclosing an adhesive tape or an article using the same in a container having a gas barrier property, substantially capable of removing both oxygen and moisture, and then, sealing the container to remove substantially both oxygen and moisture from the container.

Method for preserving adhesive tape and method for preserving article

A polyvinyl alcohol film containing at least one of complexes of hydroxybenzophenone compounds having specific structure, and at least one basic compound selected from the group consisting of (i) a hydroxide, carbonate or bicarbonate of an alkali metal, (ii) carbonate or bicarbonate of ammonium, and (iii) an amine compound. The above film is excellent in the effect of blocking ultraviolet radiation in the wavelength range from 360 to 400 nm, and therefore can be used in the optical fields of polarizing sunglasses, the display fields of a liquid crystal display and fields of wrapping materials for clothes or foods as it is or as a laminate of it with other transparent film.

Polyvinyl alcohol film, process for the production thereof and laminate

Growing community of inventors

Tokyo, Japan

Junko Baba