Oxygen absorbing agent composition and oxygen absorbing agent package

Patent metadata

Field	Value
Publication number	US-9868579-B2
Application number	US-201314424750-A
Country	US
Kind code	B2
Filing date	Aug 29, 2013
Priority date	Aug 29, 2012
Publication date	Jan 16, 2018
Grant date	Jan 16, 2018

Abstract

The present invention provides an oxygen absorbing agent composition comprising a compound (A) having two or more tetralin rings, and a transition metal catalyst.

First claim

What is claimed is:

1. An oxygen absorbing agent composition comprising:
a compound (A) having two or more tetralin rings; and
a transition metal catalyst;
wherein the compound (A) is a compound represented by at least any one selected from the group consisting of the following general formulas (1) to (6):

wherein R each independently represents a monovalent substituent; the monovalent substituent is at least one selected from the group consisting of a halogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, a heterocyclic group, a cyano group, a hydroxy group, a carboxyl group, an ester group, an amide group, a nitro group, an alkoxy group, an aryloxy group, an acyl group, an amino group, a thiol group, an alkylthio group, an arylthio group, a heterocyclic thio group and an imide group; R may each further have a substituent; one or more hydrogen atom is bonded to a benzylic position of at least one tetralin ring; X represents a divalent group containing at least one group selected from the group consisting of an aromatic hydrocarbon group, a saturated or unsaturated alicyclic hydrocarbon group, and a linear or branched saturated or unsaturated aliphatic hydrocarbon group; Y represents an ester group or an amide group; and m represents an integer of 0 to 7, n represents an integer of 0 to 3, p represents an integer of 0 to 4, q represents an integer of 0 to 6, and t represents an integer of 0 to 6.

2. The oxygen absorbing agent composition according to claim 1 , wherein a molecular weight of the compound (A) is from 276 to 1000.

3. The oxygen absorbing agent composition according to claim 1 , further comprising a carrier substance.

4. The oxygen absorbing agent composition according to claim 3 , wherein the carrier substance is at least one selected from the group consisting of synthetic calcium silicate, diatom earth, silica and activated carbon.

5. The oxygen absorbing agent composition according to claim 3 , comprising from 10 to 1000 parts by mass of the carrier substance based on 100 parts by mass of the compound (A).

6. The oxygen absorbing agent composition according to claim 1 , wherein the transition metal catalyst comprises at least one transition metal selected from the group consisting of manganese, iron, cobalt, nickel and copper.

7. The oxygen absorbing agent composition according to claim 1 , wherein the transition metal catalyst is contained in an amount of from 0.001 to 10 parts by mass in terms of the transition metal amount, based on 100 parts by mass of the compound (A).

8. An oxygen absorbing agent package comprising the oxygen absorbing agent composition according to claim 1 , and an air permeable packaging material to package the oxygen absorbing agent composition.

Assignees

• Mitsubishi Gas Chemical Co
• Mitsibishi Has Chemical Company Inc

Inventors

• Ikeda Shinichi
• Okada Satoshi
• Iwamoto Shinpei

Classifications

• C09K15/04

  containing organic compounds · CPC title

• B01J20/14

  Diatomaceous earth · CPC title

• B65D81/268 Primary

  the absorber being enclosed in a small pack, e.g. bag, included in the package · CPC title

• B01J31/2239

  Bridging ligands, e.g. OAc in Cr2(OAc)4, Pt4(OAc)8 or dicarboxylate ligands · CPC title

• C09K15/06

  containing oxygen · CPC title