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US 7,396,865 B2Granted
Oxygen absorber, method for producing the same, and packaging material using the same
AssigneeKuraray Co., Ltd.
InventorsYoshihisa Tsuji, Mie Kodani, Tomoyuki Watanabe, Hideharu Iwasaki
Life of this patent
Estimating the term…
Abstract
An oxygen absorber of the present invention includes at least one compound represented by Formula (1): and an oxidizable polymer. R1 and R2 each independently indicates a hydrogen atom or an organic group. R1 and R2 may form a ring together with carbon atoms to which they are bonded. R1 and/or R2 may form a carbon-carbon double bond with carbon atoms to which they are bonded.
Claims13
An oxygen absorber comprising a solid mixture comprising at least one N-hydroxyimide compound represented by Formula (1);
- and at least one oxidizable polymer,
- wherein R1 and R2 each independently indicates a hydrogen atom, a halogen atom, an acyl group, an alkyl group, an aryl group, an aralkyl group, a heteroaryl group, a hydroxyl group, a hydroxyl group protected by a protecting group, a mercapto group protected by a protecting group, a carboxyl group, metal salt of a carboxyl group, a carboxyl group protected by a protecting group, an aldehyde group protected by a protecting group, an amino group protected by a protecting group, a dialkylamino group, an amide group, a sulfonic group, metal salt of a sulfonic group, a sulfonic ester group, a group expressed by a formula of —OP(═O)(OH)2, metal salt or an ester derivative of a group expressed by a formula of —OP(═O)(OH)2, a group expressed by a formula of —P(═O)(OH)2, or metal salt or an ester derivative of a group expressed by a formula of —P(═O)(OH)2, R1 and R2 may form a ring together with carbon atoms to which they are bonded, and R1 and/or R2 may form a carbon-carbon double bond with carbon atoms to which they are bonded.
A method for producing an oxygen absorber, comprising:
- (i) preparing a mixture comprising at least one N-hydroxyimide compound represented by Formula (1):
- at least one oxidizable polymer, and a solvent;
- and
- (ii) removing the solvent from the mixture, wherein a solid mixture comprising the N-hydroxyimide compound and the at least one oxidizable polymer is obtained, and
- wherein R1 and R2 each independently indicates a hydrogen atom, a halogen atom, an acyl group, an alkyl group, an aryl group, an aralkyl group, a heteroaryl group, a hydroxyl group, a hydroxyl group protected by a protecting group, a mercapto group protected by a protecting group, a carboxyl group, metal salt of a carboxyl group, a carboxyl group protected by a protecting group, an aldehyde group protected by a protecting group, a dialkylamino group, an amino group protected by a protecting group, an amide group, a sulfonic group, metal salt of a sulfonic group, a sulfonic ester group, a group expressed by a formula of —OP(═O)(OH)2 or metal salt or an ester derivative thereof, or a group expressed by a formula of —P(═O)(OH)2 or metal salt or an ester derivative thereof, R1 and R2 may form a ring together with carbon atoms to which they are bonded, and R1 and/or R2 may form a carbon-carbon double bond with carbon atoms to which they are bonded.
2 more elements
A method for producing an oxygen absorber, comprising:
- (i) applying a mixture to at least one oxidizable polymer, the mixture comprising at least one N-hydroxyimide compound represented by Formula (1):
- and a solvent;
- and
- (ii) removing the solvent from the mixture applied to the polymer, wherein a solid mixture comprising the N-hydroxyimide compound and the at least one oxidizable polymer is obtained, and
- wherein R1 and R2 each independently indicates a hydrogen atom, a halogen atom, an acyl group, an alkyl group, an aryl group, an aralkyl group, a heteroaryl group, a hydroxyl group, a hydroxyl group protected by a protecting group, a mercapto group protected by a protecting group, a carboxyl group, metal salt of a carboxyl group, a carboxyl group protected by a protecting group, an aldehyde group protected by a protecting group, a dialkylamino group, an amino group protected by a protecting group, an amide group, a sulfonic group, metal salt of a sulfonic group, a sulfonic ester group, a group expressed by a formula of —OP(═O)(OH)2 or metal salt or an ester derivative thereof, or a group expressed by a formula of —P(═O)(OH)2 or metal salt or an ester derivative thereof, R1 and R2 may form a ring together with carbon atoms to which they are bonded, and R1 and/or R2 may form a carbon-carbon double bond with carbon atoms to which they are bonded.
2 more elements
Dependencies are inferred from the claim text.