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US 2016/0108207 A1Published application
Oxygen scavengers, compositions comprising the scavengers, and articles made from the compositions
AssigneePlastipak Packaging, Inc.
InventorsShenshen Li, Matthew J. Dauzvardis
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Abstract
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.
Claims30
A composition comprising:
- (a) a base polymer;
- (b) at least one compound of formula
- wherein Ar is aryl or heteroaryl;
- wherein Ar1 is aryl or heteroaryl;
- and wherein Ar1 is substituted with 0, 1, 2, or 3 groups independently selected from halogen, C1-C4 alkyl, electron withdrawing groups, and electron donating groups, and valence is satisfied;
- wherein R1 represents five groups independently selected from hydrogen, halogen, C1-C4 alkyl,
- electron withdrawing groups, and electron donating groups;
- wherein Ar2 is independently aryl or heteroaryl;
- and wherein Ar2 is independently substituted with 0, 1, 2, or 3 groups independently selected from halogen, C1-C4 alkyl, electron withdrawing groups and electron donating groups, and valence is satisfied;
- wherein R10 is independently selected from hydrogen, C1-C4 alkyl, —C(O)R20, and —C(O)Ar3;
- wherein R20 is C1-C4 alkyl;
- wherein each Ar3 is phenyl or naphthyl;
- and wherein each Ar3 is independently substituted with 0, 1, 2, or 3 groups independently selected from halogen, C1-C4 alkyl, —CO2R30;
- electron withdrawing group and electron donating groups, and valence is satisfied;
- wherein R30, when present, is selected from hydrogen, C1-C4 alkyl, —(CH2)nOH, and —CH2Ar4;
- wherein n is an integer selected from 1 or 2;
- wherein Ar4, when present, is aryl substituted with 0, 1, 2, and 3 groups selected from halogen, C1-C4 alkyl, and —C(O)NHCH2Ar5;
- wherein each Ary, when present, is aryl substituted with 0, 1, 2, or 3 groups independently selected from halogen, C1-C4 alkyl,
- electron withdrawing groups, and
- electron donating groups;
- wherein each R40, when present, is independently selected from hydrogen, C1-C4 alkyl, electron withdrawing groups, and electron donating groups;
- wherein each Ar6, when present,
- is aryl substituted with 0, 1, 2, and 3 groups independently selected from hydrogen, C1-C4 alkyl, electron withdrawing groups, and electron donating groups;
- wherein R2 is independently selected from hydrogen, C1-C4 alkyl, —C(O)R50, and —C(O)Ar7;
- wherein R50 is C1-C4 alkyl;
- wherein each Ar7 is aryl substituted with 0, 1, 2, and 3 groups independently selected from hydrogen, C1-C4 alkyl, and electron withdrawing groups, and electron donating groups, and valence is satisfied;
- and
- (c) at least one transition metal in a positive oxidation state.
25 more elements
A polymer comprising at least one residue having the formula:
- wherein each of the at least one residue is covalently bonded as a repeating unit in the polymer chain, covalently bonded as a side-chain pendant group, or covalently bonded as an end group of the polymer;
- wherein n is 2, 3, 4, 5, or 6;
- wherein Ar is aryl or heteroaryl;
- wherein Ar1 is aryl or heteroaryl;
- and wherein Ar1 is substituted with 0, 1, 2, or 3 groups independently selected from halogen, C1-C4 alkyl, electron withdrawing groups, and electron donating groups, and valence is satisfied;
- and
- wherein R1 represents 6-n groups independently selected from hydrogen, halogen, C1-C4 alkyl, electron withdrawing groups, and electron donating groups.
4 more elements
A method of making an oxygen scavenging polymer comprising the steps of:
- (a) providing a monomer comprising a moiety represented by the formula:
- wherein n is 2, 3, 4, 5, or 6;
- wherein Ar is aryl or heteroaryl;
- wherein Ar1 is aryl or heteroaryl;
- and wherein Ar1 is substituted with 0, 1, 2, or 3 groups independently selected from halogen, C1-C4 alkyl, electron withdrawing groups, and electron donating groups, and valence is satisfied;
- and
- wherein R1 represents 6-n groups independently selected from hydrogen, halogen, C1-C4 alkyl, electron withdrawing groups, and electron donating groups;
- (b) subjecting the monomer to conditions effective to provide the oxygen scavenging polymer.
5 more elements
Dependencies are inferred from the claim text.