Oxygen-absorbing resin composition

Patent metadata

Field	Value
Publication number	US-9518148-B2
Application number	US-201314433482-A
Country	US
Kind code	B2
Filing date	Oct 9, 2013
Priority date	Oct 10, 2012
Publication date	Dec 13, 2016
Grant date	Dec 13, 2016

Abstract

An oxygen-absorbing resin composition comprising a polyester compound having a constitutional unit (a), which has at least one tetralin ring selected from the group consisting of the following general formulas (1) to (4) and a constitutional unit (b) comprising residue of tetrahydrophthalic anhydride derivative which is represented by the following general formula (5) and/or general formula (6).

First claim

The invention claimed is:

1. An oxygen-absorbing resin composition comprising a polyester compound having a constitutional unit (a), which has at least one tetralin ring, selected from the group consisting of the following general formulas (1) to (4):

wherein each R independently represents a monovalent substituent, the monovalent substituent being 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 amido 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 imido group, optionally further having a substituent; wherein at least one hydrogen atom is bound to a benzyl position of the tetralin ring; wherein X represents a divalent group comprising 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 and saturated or unsaturated aliphatic hydrocarbon group and a heterocyclic group; wherein each m independently represents an integer of 0 to 3 and each n independently represents an integer of 0 to 6 and a constitutional unit (b), comprising residue of tetrahydrophthalic anhydride derivative which is represented by the following general formula (5) and/or general formula (6),

wherein each R independently represents a monovalent substituent, the monovalent substituent being 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 amido 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 imido group, optionally further having a substituent; wherein each p independently-represents an integer of 1 to 5.

2. The oxygen-absorbing resin composition according to claim 1 , wherein the polyester compound contains the constitutional unit (a) represented by the general formula (1) and the constitutional unit (b) in a molar ratio of 99:1 to 50:50.

3. The oxygen-absorbing resin composition according to claim 1 , wherein the constitutional unit (a) is at least one selected from the group consisting of the following formula (7), formula (8) and formula (9)

4. The oxygen-absorbing resin composition according to claim 1 , wherein the constitutional unit (b) is at least the following formula (10) and/or formula (11),

a total amount of formula (10) and formula (11) in the constitutional unit (b) is 50 mol % or more.

Assignees

• Mitsubishi Gas Chemical Co

Inventors

• Iwamoto Shinpei
• Okada Satoshi
• Ikeda Shinichi
• Usuda Kenichiro

Classifications

• C08G63/00 Primary

  Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule (polyester-amides C08G69/44; polyester-imides C08G73/16) · CPC title

• C08G63/54

  the acids or hydroxy compounds containing carbocyclic rings · CPC title

• C08G63/181 Primary

  Acids containing aromatic rings · CPC title

• B65D81/266

  for absorbing gases, e.g. oxygen absorbers or desiccants (B65D51/244, B65D51/30 take precedence) · CPC title