초록

A container comprising a polyester composition with enhanced carbon dioxide and oxygen barrier properties is provided. The polyester composition comprises a polyester and a purine derivative. In a particular embodiment, the purine derivative comprises a purine dione, such as caffeine.

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What is claimed is: 1. A stretch blow molded container having enhanced gas barrier properties for packaging of foods and beverages prepared from an injection molded preform comprises a polyester composition comprising a polyester and a purine derivative, wherein the purine derivative comprises a co

What is claimed is: 1. A stretch blow molded container having enhanced gas barrier properties for packaging of foods and beverages prepared from an injection molded preform comprises a polyester composition comprising a polyester and a purine derivative, wherein the purine derivative comprises a compound having the chemical structure of Formula I wherein R1, R3, R5, and R7, independent of one another, comprise a hydrogen, arylamino, alkoxy, aryloxy, alkenyl, alkynyl, or a straight, chained, branched, or cyclic alkyl, alkenyl, alkynyl, aryl, heteroaryl, heterocyclic, or acyl group; wherein t, t1, x, x1, x2, y, and z, independent of one another, are a single bond or a double bond; wherein t′, x′, y′, and z′, independent of one another, are 0 or 1 wherein x″, y″, and w′, independent of one another, are 1 or 2; wherein when x is a double bond, x1 is a single bond; wherein when x1 is a double bond, x and x2 are single bonds; wherein when x2 is a double bond, x1 and t1 are single bonds; wherein when t is a double bond, t1 and z are single bonds; wherein when z is a double bond, t is a single bond; wherein when t1 is a double bond, t and x2 are single bonds; wherein when x is a double bond, x′ is 0; wherein when x or x1 is a double bond, x″ is 1; wherein when y is a double bond, y′ is 0 and y″ is 1; wherein when t or t1 is a double bond, t′ is 0; wherein when z and t are single bonds, w′ is 2; wherein when z or t is a double bond, w′ is 1; wherein when z is a double bond, z′ is 0; wherein when x, y, or z, independent of one another, is a single bond, and x′, y′, or z′, independent of one another, is 1; wherein R2, R4, and R6, independent of one another, may be moieties attached by a single or double bond; wherein when R2, R4, or R6 is a moiety attached by a single bond, R2, R4, and R6, independent of one another, comprise a hydrogen, hydroxyl, amino, amido, alkylamino, arylamino, alkoxy, aryloxy, nitro, acyl, alkenyl, alkynyl, cyano, sulfo, sulfato, mercapto, imino, sulfonyl, sulfenyl, sulfinyl, sulfamoyl, phosphonyl, phosphinyl, phosphoryl, phosphino, thioester, thioether, anhydride, oximno, hydrazino, carbamyl, phosphonic acid, phosphonato, or a straight, chained, branched, or cyclic alkyl, alkenyl, alkynyl, aryl, heteroaryl, heterocyclic, or acyl group; wherein when R2, R4, or R6 is a moiety attached by a double bond, R2, R4, or R6, independent of one another, comprise oxygen, sulfur, CR8R9, SO2, NR10; R8 and R9, independent of one another, comprise a hydrogen, hydroxyl, amino, amido, alkylamino, arylamino, alkoxy, aryloxy, nitro, acyl, alkenyl, alkynyl, cyano, sulfo, sulfato, mercapto, imino, sulfonyl, sulfenyl, sulfinyl, sulfamoyl, phosphonyl, phosphinyl, phosphoryl, phosphino, thioester, thioether, anhydride, oximno, hydrazino, carbamyl, phosphonic acid, phosphonato, or a straight, chained, branched, or cyclic alkyl, alkenyl, alkynyl, aryl, heteroaryl, heterocyclic, or acyl group; and R10 comprises a hydrogen, arylamino, alkoxy, aryloxy, alkenyl, alkynyl, or a straight, chained, branched, or cyclic alkyl, alkenyl, alkynyl, aryl, heteroaryl, heterocyclic, or acyl group; wherein when x″ is 2, both R2 moieties may be the same or different; wherein when y″ is 2, both R4 moieties may be the same or different; and wherein when w′ is 2, both R6 moieties may be the same or different. 2. The container of claim 1, wherein the purine derivative of Formula I comprises a compound having the chemical structure of Formula II wherein R2 and R4, independent of one another, are moieties attached by a double bond comprising oxygen, sulfur, CR8R9, SO2, or NR10; and wherein R1, R3, R5, and R6, independent of one another, comprise a hydrogen, hydroxyl, amino, amido, alkylamino, arylamino, alkoxy, aryloxy, nitro, acyl, alkenyl, alkynyl, cyano, sulfo, sulfato, mercapto, imino, sulfonyl, sulfenyl, sulfinyl, sulfamoyl, phosphonyl, phosphinyl, phosphoryl, phosphino, thioester, thioether, anhydride, oximno, hydrazino, carbamyl, phosphonic acid, phosphonato, or a straight, chained, branched, or cyclic alkyl, alkenyl, alkynyl, aryl, heteroaryl, heterocyclic, or acyl group. 3. The container of claim 2, wherein the purine derivative of Formula II comprises theobromine, a purine dione having the chemical structure 4. The container of claim 2, wherein the purine derivative of Formula II comprises caffeine, a purine dione having the chemical structure 5. The container of claim 2, wherein the purine derivative of Formula II comprises theophylline, a purine dione having the chemical structure 6. The container of claim 2, wherein the purine derivative of Formula II comprises xanthine, a purine dione having the chemical structure 7. The container of claim 1, wherein the purine derivative of Formula I comprises a compound having the chemical structure of Formula III wherein R2 and R4, independent of one another, are moieties attached by a double bond comprising oxygen, sulfur, CR8R9, SO2, or NR10; and wherein R1, R3, R6, and R7, independent of one another, comprise a hydrogen, hydroxyl, amino, amido, alkylamino, arylamino, alkoxy, aryloxy, nitro, acyl, alkenyl, alkynyl, cyano, sulfo, sulfato, mercapto, imino, sulfonyl, sulfenyl, sulfinyl, sulfamoyl, phosphonyl, phosphinyl, phosphoryl, phosphino, thioester, thioether, anhydride, oximno, hydrazino, carbamyl, phosphonic acid, phosphonato, or a straight, chained, branched, or cyclic alkyl, alkenyl, alkynyl, aryl, heteroaryl, heterocyclic, or acyl group. 8. The container of claim 1, wherein the purine derivative of Formula I comprises a compound having the chemical structure of Formula IV wherein R2, R4, and R6, independent of one another, are moieties attached by a double bond comprising oxygen, sulfur, CR8R9, SO2, or NR10; and wherein R1, R3, R5, and R7, independent of one another, comprise a hydrogen, hydroxyl, amino, amido, alkylamino, arylamino, alkoxy, aryloxy, nitro, acyl, alkenyl, alkynyl, cyano, sulfo, sulfato, mercapto, imino, sulfonyl, sulfenyl, sulfinyl, sulfamoyl, phosphonyl, phosphinyl, phosphoryl, phosphino, thioester, thioether, anhydride, oximno, hydrazino, carbamyl, phosphonic acid, phosphonato, or a straight, chained, branched, or cyclic alkyl, alkenyl, alkynyl, aryl, heteroaryl, heterocyclic, or acyl group. 9. The container of claim 8, wherein the purine derivative of Formula IV comprises uric acid, a purine dione having the chemical structure 10. The container of claim 1, wherein the purine derivative of Formula I comprises a compound having the chemical structure of Formula V wherein R4 is a moiety attached by a double bond comprising oxygen, sulfur, CR8R9, SO2, or NR10; and wherein R1, R2, R5, and R6, independent of one another, comprise a hydrogen, hydroxyl, amino, amido, alkylamino, arylamino, alkoxy, aryloxy, nitro, acyl, alkenyl, alkynyl, cyano, sulfo, sulfato, mercapto, imino, sulfonyl, sulfenyl, sulfinyl, sulfamoyl, phosphonyl, phosphinyl, phosphoryl, phosphino, thioester, thioether, anhydride, oximno, hydrazino, carbamyl, phosphonic acid, phosphonato, or a straight, chained, branched, or cyclic alkyl, alkenyl, alkynyl, aryl, heteroaryl, heterocyclic, or acyl group. 11. The container of claim 10, wherein the purine derivative of formula V comprises guanine, having the chemical structure 12. The container of claim 1, wherein the purine derivative of Formula I comprises a compound having the chemical structure of Formula VI wherein R2, R4, R6, and R7 comprise a hydrogen, hydroxyl, amino, amido, alkylamino, arylamino, alkoxy, aryloxy, nitro, acyl, alkenyl, alkynyl, cyano, sulfo, sulfato, mercapto, imino, sulfonyl, sulfenyl, sulfinyl, sulfamoyl, phosphonyl, phosphinyl, phosphoryl, phosphino, thioester, thioether, anhydride, oximno, hydrazino, carbamyl, phosphonic acid, phosphonato, or a straight, chained, branched, or cyclic alkyl, alkenyl, alkynyl, aryl, heteroaryl, heterocyclic, or acyl group. 13. The container of claim 12, wherein the purine derivative of Formula VI comprises adenine, having the chemical structure 14. The container of claim 1, wherein the purine derivative of Formula I comprises a compound having the chemical structure of Formula VII wherein R2 is a moiety attached by a double bond comprising oxygen, sulfur, CR8R9, SO2, or NR10; and wherein R3, R4, R5, and R6, independent of one another, comprise a hydrogen, hydroxyl, amino, amido, alkylamino, arylamino, alkoxy, aryloxy, nitro, acyl, alkenyl, alkynyl, cyano, sulfo, sulfato, mercapto, imino, sulfonyl, sulfenyl, sulfinyl, sulfamoyl, phosphonyl, phosphinyl, phosphoryl, phosphino, thioester, thioether, anhydride, oximno, hydrazino, carbamyl, phosphonic acid, phosphonato, or a straight, chained, branched, or cyclic alkyl, alkenyl, alkynyl, aryl, heteroaryl, heterocyclic, or acyl group. 15. The container of claim 14, wherein the purine derivative of Formula VII comprises guanine, having the chemical structure 16. The container of claim 1, wherein the purine derivative of Formula I comprises a compound having the chemical structure of Formula VIII wherein R4 is a moiety attached by a double bond comprising oxygen, sulfur, CR8R9, SO2, or NR10; and wherein R1, R2, R5, and R6, independent of one another, comprise a hydrogen, hydroxyl, amino, amido, alkylamino, arylamino, alkoxy, aryloxy, nitro, acyl, alkenyl, alkynyl, cyano, sulfo, sulfato, mercapto, imino, sulfonyl, sulfenyl, sulfinyl, sulfamoyl, phosphonyl, phosphinyl, phosphoryl, phosphino, thioester, thioether, anhydride, oximno, hydrazino, carbamyl, phosphonic acid, phosphonato, or a straight, chained, branched, or cyclic alkyl, alkenyl, alkynyl, aryl, heteroaryl, heterocyclic, or acyl group. 17. The container of claim 16, wherein the purine derivative of Formula VIII comprises 7-methylguanine, having the chemical structure 18. The container of claim 16, wherein the purine derivative of Formula VIII comprises thioguanine, having the chemical structure 19. The container of claim 16, wherein the purine derivative of Formula VIII comprises 6-mercaptopurine, having the chemical structure 20. The container of claim 16, wherein the purine derivative of Formula VIII comprises hypoxanthine, having the chemical structure 21. The container of claim 1, wherein the purine derivative of Formula comprises a compound having the chemical structure of Formula IX wherein R1, R2, R4, and R6, independent of one another, comprise a hydrogen, hydroxyl, amino, amido, alkylamino, arylamino, alkoxy, aryloxy, nitro, acyl, alkenyl, alkynyl, cyano, sulfo, sulfato, mercapto, imino, sulfonyl, sulfenyl, sulfinyl, sulfamoyl, phosphonyl, phosphinyl, phosphoryl, phosphino, thioester, thioether, anhydride, oximno, hydrazino, carbamyl, phosphonic acid, phosphonato, or a straight, chained, branched, or cyclic alkyl, alkenyl, alkynyl, aryl, heteroaryl, heterocyclic, or acyl group. 22. The container of claim 21, wherein the purine derivative of Formula IX comprises 1H-purine, having the chemical structure 23. The container of claim 21, wherein the purine derivative of Formula IX comprises diaminopurine, having the chemical structure 24. The container of claim 1, wherein the purine derivative of Formula I comprises 7H-purine, having the chemical structure 25. The container of claim 1, wherein the purine derivative is present in the polyester composition in an amount in the range of about 0.2 to about 10 weight percent of the polyester composition. 26. The container of claim 1, wherein the purine derivative is present in the polyester composition in an amount in the range of about 3 to about 10 weight percent of the polyester composition. 27. The container of claim 1, wherein the purine derivative is present in the polyester composition in an amount in the range of about 3 to about 5 weight percent of the polyester composition. 28. The container of claim 1, wherein the polyester comprises polyethylene terephthalate. 29. The container of claim 1, wherein the polyester composition comprises a poly(ethylene terephthalate) based copolymer having less than 20 percent diacid, 10 percent glycol modification, or both, based on 100 mole percent diacid component and 100 mole percent diol component. 30. A packaged beverage comprising a beverage disposed in the container of claim 1 and a seal for sealing the beverage in the package.