Oxygen scavengers, compositions comprising the scavengers, and articles made from the compositions
View Patent ↗The disclosure relates to oxygen scavenging molecules, compositions, methods of making the compositions, articles prepared from the compositions, and methods of making the articles. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
1. A compound having a structure of Formula III or Formula IV:
wherein the symbol - - - when used in conjunction with a bond line represents a single or a double bond;
wherein each n of Formula III is independently 1-5;
wherein each n of Formula (IV) is independently 2-5;
wherein m is an integer from 0 to 5-n;
wherein each X is independently selected from the group consisting of O, S, and NH;
wherein each Y, each A, and each B are independently selected from the group consisting of N, CR 1 , and CR 2 ;
wherein D, E, and F are independently selected from the group consisting of CH, N, O, and S;
wherein each R 1 and each R 2 is independently selected from the group consisting of H, alkyl, aryl, electron withdrawing groups, electron releasing groups, and a transition metal; and
wherein L is a divalent linking group selected from C2-C12 aliphatic or cyclic ether, C2-C12 aliphatic or cyclic amide, C6 to C12 aromatic amide, C2-C12 aliphatic or cyclic amine, C6-C12 aromatic amine, C2-C12 aliphatic or cyclic ester and C6 to C12 aromatic ester.
2. The compound of claim 1 , wherein m is 0.
3. The compound of claim 1 , wherein each X is O.
4. The compound of claim 1 , wherein each Y, each A, and each B are CR 1 .
5. The compound of claim 1 , wherein each Y, each A, and each B are CH.
6. The compound of claim 1 , wherein D, E, and F are CH.
7. The compound of claim 1 , wherein L is selected from:
wherein R is a divalent organic residue selected from alkyl, alkenyl, alkynyl, heteroalkyl, heteroalkenyl, heteroalkynyl, cycloalkyl, cycloalkenyl, cycloalkynyl, heterocycloalkyl, heterocycloalkenyl, heterocycloalkynyl, aryl, and heteroaryl, and wherein R has from 1 to 8 carbons; and
wherein each R′ is independently C1-C6 alkyl.
8. The compound of claim 1 , having a structure:
9. The compound of claim 8 , having a structure:
10. The compound of claim 8 , having a structure:
11. The compound of claim 8 , having a structure:
12. The compound of claim 1 , having a structure:
13. The compound of claim 12 , having a structure:
14. The compound of claim 12 , having a structure:
15. The compound of claim 12 , having a structure: