Oxygen absorber

Abstract

An oxygen absorber is provided that contains at least one of compounds each having a particular structure, and the oxygen absorber exhibits an oxygen absorbing capability without a metal contained, and is suitable for removing oxygen inside a packaging material packaging foods or the like.

1 : An oxygen absorber comprising: an amide compound represented by formula (A-I); an amide compound represented by formula (B-I); an imide compound represented by formula (C-I); an ester compound represented by formula (D-I); a compound represented by formula (E-I); or a compound represented by any one of formulae (F-I) to (F-III): 
       
         
           
           
               
               
           
         
       
       wherein R A1  represents a substituent; R A2  represents an electron donating group; m A  represents an integer of from 1 to 4; n A  represents an integer of from 0 to 3, provided that m A +n A  is an integer of from 1 to 4; and Q A  represents an (m A +n A )-valent group comprising at least one group selected from the group consisting of an aromatic hydrocarbon group, a saturated or unsaturated alicyclic hydrocarbon group, a linear or branched and saturated or unsaturated aliphatic hydrocarbon group and a heterocyclic group, provided that Q A  does not comprise a carboxyl group, 
       
         
           
           
               
               
           
         
       
       wherein R B1  represents a substituent; m B  represents an integer of from 1 to 4; n B  represents an integer of from 0 to 3, provided that m B +n B  is an integer of from 1 to 4; and Q B  represents an (m B  n B )-valent group comprising at least one group selected from the group consisting of an aromatic hydrocarbon group, a saturated or unsaturated alicyclic hydrocarbon group, a linear or branched and saturated or unsaturated aliphatic hydrocarbon group and a heterocyclic group, provided that Q B  does not comprise an amino group, 
       
         
           
           
               
               
           
         
       
       wherein R C1  represents a substituent; n C  represents an integer of 1 or 2; and Q C  represents a 2n C -valent containing comprising at least one group selected from the group consisting of an aromatic hydrocarbon group, a saturated or unsaturated alicyclic hydrocarbon group, a linear or branched and saturated or unsaturated aliphatic hydrocarbon group and a heterocyclic group, 
       
         
           
           
               
               
           
         
       
       wherein R D1  represents a substituent; R D2  represents an electron donating group; m D  represents an integer of from 1 to 4; n D  represents an integer of from 0 to 3, provided that m D +n D  is an integer of from 1 to 4; and Q D  represents an (m D +n D )-valent group comprising at least one group selected from the group consisting of an aromatic hydrocarbon group, a saturated or unsaturated alicyclic hydrocarbon group, a linear or branched and saturated or unsaturated aliphatic hydrocarbon group and a heterocyclic group, 
       
         
           
           
               
               
           
         
       
       wherein R E1  represents a substituent; R E2  represents a hydrogen atom or a substituent; L E  represents an imino group, an ether group or a sulfide group; m E  represents an integer of from 1 to 4; n E  represents an integer of from 0 to 3, provided that m E +n E  is from 1 to 4; and Q E  represents a hydrogen atom or an (m E +n E )-valent group, 
       
         
           
           
               
               
           
         
       
       wherein Ra F1  a substituent; Rb F1  represents a hydrogen atom or a substituent; Q F1  represents a hydrogen atom or a substituent; L F1  represents an imino group, an ether group or a sulfide group; and n F  represents an integer of from 1 to 2, 
       
         
           
           
               
               
           
         
       
       wherein Ra F2  represents a substituent; Q F2  represents a hydrogen atom or a substituent; and L F2  represents an imino group, an ether group, a sulfide group or a substituted or unsubstituted alkylene group, 
       
         
           
           
               
               
           
         
       
       wherein Ra F3  represents a substituent; Q F31  and Q F32  each represent a hydrogen atom or a substituent; and L F3  represents an imino group, an ether group or a sulfide group. 
     
     
         2 : The oxygen absorber according to  claim 1 , wherein the oxygen absorber comprises the amide compound represented by formula (A-I). 
     
     
         3 : The oxygen absorber according to  claim 2 , wherein in formula (A-I), R A1  represents a substituted or unsubstituted alkyl group having from 1 to 6 carbon atoms or a substituted or unsubstituted aryl group having from 6 to 10 carbon atoms; and R A2  represents an amino group, a hydroxyl group or a substituted or unsubstituted alkyl group having from 1 to 6 carbon atoms. 
     
     
         4 : The oxygen absorber according to  claim 1 , wherein the oxygen absorber comprises the amide compound represented by formula (B-I). 
     
     
         5 : The oxygen absorber according to  claim 4 , wherein in formula (B-I), R B1  represents a substituted or unsubstituted alkyl group having from 1 to 6 carbon atoms or a substituted or unsubstituted aryl group having from 6 to 10 carbon atoms. 
     
     
         6 : The oxygen absorber according to  claim 1 , wherein the oxygen absorber comprises the imide compound represented by formula (C-I). 
     
     
         7 : The oxygen absorber according to  claim 6 , wherein in formula (C-I), R C1  represents a substituted or unsubstituted alkyl group having from 1 to 6 carbon atoms or a substituted or unsubstituted aryl group having from 6 to 10 carbon atoms. 
     
     
         8 : The oxygen absorber according to  claim 1 , wherein the oxygen absorber comprises the ester compound represented by formula (D-I). 
     
     
         9 : The oxygen absorber according to  claim 8 , wherein in formula (D-I), R D1  represents a substituted or unsubstituted alkyl group having from 1 to 6 carbon atoms or a substituted or unsubstituted aryl group having from 6 to 10 carbon atoms. 
     
     
         10 : The oxygen absorber according to  claim 1 , wherein the oxygen absorber comprises the compound represented by formula (E-I). 
     
     
         11 : The oxygen absorber according to  claim 10 , wherein L E  represents an imino group. 
     
     
         12 : The oxygen absorber according to  claim 1 , wherein the oxygen absorber comprises the compound represented by formulae formula (F-I), formula (F-II), or formula (F-III). 
     
     
         13 : The oxygen absorber according to  claim 12 , wherein L F1 , L F2  and L F3  each represent an imino group. 
     
     
         14 : A resin composition comprising the oxygen absorber according to  claim 1  in an amount of from 1 to 30% by mass. 
     
     
         15 : The oxygen absorber according to  claim 1 , wherein the oxygen absorber comprises the compound represented by formula (F-I). 
     
     
         16 : The oxygen absorber according to  claim 1 , wherein the oxygen absorber comprises the compound represented by formula (F-II). 
     
     
         17 : The oxygen absorber according to  claim 1 , wherein the oxygen absorber comprises the compound represented by formula (F-III).