Oxygen absorbent
First Claim
1. An oxygen absorbent comprising:
- (A1) an unsaturated fatty acid and/or a fatty oil containing unsaturated fatty acid,(B1) a transition metal and/or a transition metal compound, and(C1) a basic substance which is an alkaline earth metal compound of at least one of an an oxide, hydroxide, carbonate, bicarbonate, silicate, phosphate or organic acid.
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Abstract
The present invention relates to an oxygen absorbent, and more particularly to an oxygen absorbent applicable to preservation of dry foodstuffs and medical drugs and to the rust prevention of metallic articles. Thus, the invention provides an oxygen absorbent comprising:
(A1) an unsaturated fatty acid and/or a fatty oil containing unsaturated fatty acid,
(B1) a transition metal and/or a transition metal compound, and
(C1) a basic substance,
and an oxygen absorbent comprising:
(A2) one member or a mixture of two or more members selected from unsaturated fatty acid compounds including unsaturated fatty acids, esters of unsaturated fatty acid and metallic salts of unsaturated fatty acid,
(B2) a basic substance, and
(C2) an adsorbent.
82 Citations
15 Claims
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1. An oxygen absorbent comprising:
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(A1) an unsaturated fatty acid and/or a fatty oil containing unsaturated fatty acid, (B1) a transition metal and/or a transition metal compound, and (C1) a basic substance which is an alkaline earth metal compound of at least one of an an oxide, hydroxide, carbonate, bicarbonate, silicate, phosphate or organic acid. - View Dependent Claims (2, 3, 8, 10, 13)
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4. An oxygen absorbent comprising:
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(A2) one member or a mixture of two or more members selected from unsaturated fatty acid compounds including unsaturated fatty acids, esters of unsaturated fatty acids and metallic salts of unsaturated fatty acids, (B2) a basic substance which is an alkaline earth metal compound of at least one of an oxide, hydroxide, carbonate, bicarbonate, silicate, phosphate or organic acid, and (C2) an adsorbent. - View Dependent Claims (5, 7, 9, 11, 12, 14, 15)
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6. An oxygen absorbent according to claim 6, wherein said metallic salt of an unsaturated fatty acid is an alkaline earth metal salt, alkali metal salt, transition metal salt or aluminum salt of an unsaturated fatty acid derived from an animal or vegetable oil.
Specification