Patent ID: 8685511

Claim:
A container comprising a polyester composition comprising a polyester, a creep control agent, and a gas barrier enhancing additive; wherein the creep control agent comprises a compound having the chemical structure of Formula I: wherein R 1 , R 2 , R 3 , and R 4 , independent of one another, may comprise a heteroatom, a tetravalent carbon atom, or a C 1 -C 3 divalent or trivalent hydrocarbon; wherein each heteroatom, tetravalent carbon atom, or C 1 -C 3 divalent or trivalent hydrocarbon may be unsubstituted or substituted with one or more functional moieties or one or more C 1 -C 10 hydrocarbyls that may be unsubstituted or substituted with one or more functional moieties; wherein i, ii, iii, iv, v, and vi, independent of one another, comprise a single, double, or triple bond; wherein when i is a double bond, ii and vi are single bonds; wherein when ii is a double bond, i and iii are single bonds; wherein when iii is a double bond, ii and iv are single bonds; wherein when iv is a double bond iii and v are single bonds; wherein when v is a double bond, iv and vi are single bonds; wherein when vi is a double bond, i and v are single bonds; wherein vii may be a single bond, double bond, or no bond at all connects R 3 and R 4 ; wherein m, n, o, and p, independent of one another, may be 0 or 1; wherein when m is 0, bonds ii and iii form a single continuous bond; wherein when n is 0, bonds vi and v form a single continuous bond; wherein when o is 0, R 4 is bonded to R 1 by a single bond; and wherein when p is 0, R 3 is bonded to R 2 by a single bond; wherein the creep control agent is present in the polyester composition in an amount from about 200 to about 2000 ppm; wherein the gas barrier enhancing additive comprises a compound having the chemical structure of Formula A or Formula B: wherein X and X 6 , independent of one another, comprise hydrogen, halide, heteroatom, hydroxyl, amino, amido, alkylamino, arylamino, alkoxy, aryloxy, nitro, acyl, cyano, sulfo, sulfato, mercapto, imino, sulfonyl, sulfenyl, sulfinyl, sulfamoyl, phosphonyl, phosphinyl, phosphoryl, phosphino, thioester, thioether, anhydride, oximno, hydrazino, carbamyl, phosphonic acid, phosphonato, or a C 1 -C 10 monovalent hydrocarbon which is unsubstituted or substituted with one or more functional moieties; wherein X 1 , X 2 , X 3 , X 4 , and X 5 , independent of one another, comprise a heteroatom or a C 1 -C 10 divalent hydrocarbon, wherein each heteroatom or C 1 -C 10 divalent hydrocarbon is unsubstituted or substituted with one or more functional moieties or one or more C 1 -C 10 hydrocarbyls that are unsubstituted or substituted with one or more functional moieties; and wherein s, t, u, and v, independent of one another, is a number from 0 to 10; and wherein the container is substantially free of haze and color.