Toyo Seikan Group Holdings, Ltd.

Toyo Seikan Co., Ltd.

Yoshiki Sawa

Toshiki Yamada

Yukiko Hirayama

Kanna Muramatsu

An oxygen-absorbing resin composition containing an ethylene terephthalate type polyester resin and an organic oxygen absorber and, further, containing cobalt in an amount of 5 to 50 ppm and titanium in an amount of 1 to 15 ppm calculated as elements.

Oxygen-absorbing resin composition containing organic oxygen absorber

An oxygen-absorbing resin composition containing a base resin having a thermoplastic resin; and an oxygen-absorbing component having at least the one selected from the group consisting of an ester, an amide, an imide or a dicarboxylic acid derived from an acid anhydride represented by the following formula (1), 

Oxygen-absorbing resin composition

An oxygen-absorbing resin composition including a base resin (A) which is a thermoplastic resin, an oxygen-absorbing component (B) which is a compound having an unsaturated alicyclic structure, and an oxidation promotion component (C) for promoting the oxidation of the oxygen-absorbing component (B); wherein the oxygen-absorbing component (B) is an imide compound having a molecular weight of not more than 2,000 and obtained by heat-treating an amide having been obtained by reacting an acid anhydride represented by the following formula (1): wherein the ring X is an alicyclic ring having an unsaturated bond, and Y is an alkyl group, with an aromatic amine, and wherein the oxidation promotion component (C) is a compound having a benzyl hydrogen.

To provide an oxygen-absorbing polyester resin composition which exhibits excellent oxygen-absorbing capability even in the absence of transition metal catalyst without affected by the glass transition temperature of a polyester resin that is contained as a base resin. The oxygen-absorbing polyester resin composition including a base resin (A) which is a polyester resin, an oxygen-absorbing component (B) which is a compound having an unsaturated alicyclic structure, and an oxidation promotion component (C) for promoting the oxidation of the oxygen-absorbing component (B), said oxidation promotion component (C) being a compound having a benzyl hydrogen.

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Kanagawa, Japan

Yoshiki Sawa