# US 2014/0154446 A1 · Pet Container and Compositions Having Enhanced Mechanical Properties and Gas Barrier Properties

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- Number: US 2014/0154446 A1
- Document ID: US20140154446A1
- Status: Published application
- Kind: A1
- Application number: 14/174,998
- Filed: 2014-02-07
- Published: 2014-06-05
- Earliest claimed: 2008-12-09
- Assignees: The Coca-Cola Company
- Applicants: The Coca-Cola Company
- Inventors: Robert Kriegel; Xiaoyan Huang; Robert Schiavone; T. Edwin Freeman; Mihaela Penescu
- Web page: https://patentgrep.com/patent/US20140154446A1

## CPC

- C08K 5/1539: Cyclic anhydrides
- B65D 81/18: providing specific environment for contents, e.g. temperature above or below ambient (with thermal insulation B65D81/38)
- C08K 5/12: of cyclic polycarboxylic acids
- C08K 5/1535: Five-membered rings
- C08L 67/02: Polyesters derived from dicarboxylic acids and dihydroxy compounds (C08L67/06 takes precedence)
- C08K 2201/008: Additives improving gas barrier properties
- C08L 25/14: with unsaturated esters
- C08L 33/068: {containing glycidyl groups}
- Y10T 428/1352: Polymer or resin containing [i.e., natural or synthetic]
- Y10T 428/1379: Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit
- Y10T 428/139: Open-ended, self-supporting conduit, cylinder, or tube-type article
- Y10T 428/1397: Single layer [continuous layer]
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A container comprising a polyester composition with enhanced mechanical properties is provided. The polyester composition comprises a polyester and a creep control agent. In particular embodiments, the polyester composition comprises a polyester, a creep control agent, and a gas barrier additive. In particular embodiments, the creep control agents are molecules or polymers comprising dianhydrides, bis-lactams, bis-oxazoles, and epoxides.

## Claims

### Claim 1

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 R1, R2, R3, and R4, independent of one another, may comprise a heteroatom, a tetravalent carbon atom, or a C1-C3 divalent or trivalent hydrocarbon; wherein each heteroatom, tetravalent carbon atom, or C1-C3 divalent or trivalent hydrocarbon may be unsubstituted or substituted with one or more functional moieties or one or more C1-C10 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 R3 and R4;
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, R4 is bonded to R1 by a single bond; and wherein when p is 0, R3 is bonded to R2by 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 X6, independent of one another, comprise hydrogen, halide, heteroatom, hydroxyl, amino, amido, alkylamino, arylamino, alkoxy, aryloxy, acyl, or a C1-C10 monovalent hydrocarbon which is unsubstituted or substituted with one or more functional moieties;
wherein X1, X2, X3, X4, and X5, independent of one another, comprise a heteroatom or a C1-C10 divalent hydrocarbon, wherein each heteroatom or C1-C10 divalent hydrocarbon is unsubstituted or substituted with one or more functional moieties or one or more C1-C10 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;
wherein when X3 comprises a C6 or C10 divalent aromatic hydrocarbon, s and v are 0, and X and X6, independent of one another, comprise a hydrogen, halide, heteroatom, hydroxyl, amino, amido, alkylamino, arylamino, alkoxy, aryloxy, acyl, or a C3-C10 monovalent cyclic or heterocyclic non-aryl hydrocarbon that are unsubstituted or substituted with one or more functional moieties; and
wherein the container is substantially free of haze and color.