BIO-BASED POLYETHYLENE TEREPHTHALATE POLYMER AND METHOD OF MAKING SAME

• US 20090246430A1
• Filed: 09/14/2008
• Published: 10/01/2009
• Est. Priority Date: 03/28/2008
• Status: Abandoned Application

• Current Assignee: The Coca-Cola Company
• Original Assignee: The Coca-Cola Company
• Inventors: Huang, Xiaoyan, Schultheis, Mikell W., Kriegel, Robert M.
• Application Number:
  US12/210,208
• Publication Number:
  US 20090246430A1
• Time in Patent Office: Days
• US Class Current: 428/36.600
• CPC Class Codes: C08G 63/183 Terephthalic acids
• CPC Class Codes: C08G 63/199 Acids or hydroxy compounds containing cycloaliphatic rings
• CPC Class Codes: C08G 63/78 Preparation processes
• CPC Class Codes: Y10T 428/1352 Polymer or resin containing [i.e., natural or synthetic]
• CPC Class Codes: Y10T 428/1379 Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit

Abstract

A bio-based polyethylene terephthalate polymer comprising from about 25 to about 75 weight percent of a terephthalate component and from about 20 to about 50 weight percent of a diol component, wherein at least about one weight percent of at least one of the terephthalate and/or the diol component is derived from at least one bio-based material. A method of producing a bio-based polyethylene terephthalate polymer comprising obtaining a diol component comprising ethylene glycol, obtaining a terephthalate component comprising terephthalic acid, wherein at least one of the diol component and/or the diol component is derived from at least one bio-based material, and reacting the diol component and the terephthalate component to form a bio-based polyethylene terephthalate polymer comprising from about 25 to about 75 weight percent of the terephthalate component and from about 20 to about 50 weight percent of the diol component.

Claims

1. A bio-based polyethylene terephthalate polymer comprising

from about 25 to about 75 weight percent of a terephthalate component, wherein the terephthalate component is selected from terephthalic acid, dimethyl terephthalate, isophthalic acid, and a combination thereof, and

from about 20 to about 50 weight percent of a diol component, wherein the diol component is selected from ethylene glycol, cyclohexane dimethanol, and a combination thereof,

wherein at least about one weight percent of at least one of the terephthalate and/or the diol component is derived from at least one bio-based material.

2. The bio-based polyethylene terephthalate polymer of claim 1, wherein at least about ten weight percent of the diol component is derived from at least one bio-based material.

3. The bio-based polyethylene terephthalate polymer of claim 1, wherein at least about ten weight percent of the terephthalate component is derived from at least one bio-based material.

4. The bio-based polyethylene terephthalate polymer of claim 1, wherein the terephthalate component comprises at least about 70 weight percent of terephthalic acid and wherein at least about ten weight percent of the terephthalic acid is derived from at least one bio-based material.

5. The bio-based polyethylene terephthalate polymer of claim 1, wherein the at least one bio-based material is selected from corn, sugarcane, beet, potato, starch, citrus fruit, woody plant, cellulosic lignin, plant oil, natural fiber, oily wood feedstock, and a combination thereof.

6. The bio-based polyethylene terephthalate polymer of claim 1, wherein the diol component comprises at least about one weight percent of cyclohexane dimethanol.

7. The bio-based polyethylene terephthalate polymer of claim 1, further comprising a supplemental component selected from at least one coloring agent, at least one fast reheat resistant additive, at least one gas barrier additive, at least one UV blocking additive, and a combination thereof.

8. A bio-based container comprising the bio-based polyethylene terephthalate polymer of claim 1.

9. The bio-based container of claim 8, wherein the bio-based polyethylene terephthalate polymer comprises at least about 0.1 dpm/gC of carbon-14.

10. The container of claim 8, wherein the bio-based container has an intrinsic viscosity from about 0.45 dL/g to about 1.0 dL/g.

11. A bio-based container comprising a bio-based polyethylene terephthalate polymer, wherein at least one weight percent of the polyethylene terephthalate polymer is derived from at least one bio-based material, wherein the bio-based container has an intrinsic viscosity from about 0.45 dL/g to about 1.0 dL/g.

12. The bio-based container of claim 11, wherein the bio-based polyethylene terephthalate polymer comprises from about 25 to about 75 weight percent of a terephthalate component, wherein the terephthalate component is selected from terephthalic acid, dimethyl terephthalate, isophthalic acid, and a combination thereof, and

from about 20 to about 50 weight percent of a diol component, wherein the diol component is selected from ethylene glycol, cyclohexane dimethanol, and a combination thereof;

wherein at least about ten weight percent of the diol component is derived from at least one bio-based material.

13. The bio-based container of claim 12, wherein at least about ten weight percent of the terephthalate component is derived from at least one bio-based material.

14. The bio-based container of claim 12, wherein the terephthalate component comprises at least about 70 weight percent of terephthalic acid and wherein at least about ten weight percent of the terephthalic acid is derived from at least one bio-based material.

15. The bio-based container of claim 11, wherein the at least one bio-based material is selected from corn, sugarcane, beet, potato, starch, citrus fruit, woody plant, cellulosic lignin, plant oil, natural fiber, oily wood feedstock, and a combination thereof.

16. The bio-based container of claim 11, wherein the bio-based polyethylene terephthalate polymer further comprises a supplemental component selected from at least one coloring agent, at least one fast reheat resistant additive, at least one gas barrier additive, at least one UV blocking additive, and a combination thereof.

17. The bio-based container of claim 11, wherein the bio-based container comprises at least about 0.1 dpm/gC of carbon-14.

18. A method of producing a bio-based polyethylene terephthalate polymer comprising

a. obtaining a diol component comprising ethylene glycol;

b. obtaining a terephthalate component comprising terephthalic acid,

wherein at least one of the diol and/or the terephthalate component is derived from at least one bio-based material; and

c. reacting the diol component and the terephthalate component to form a bio-based polyethylene terephthalate polymer, wherein the bio-based polyethylene terephthalate polymer comprises from about 25 to about 75 weight percent of the terephthalate component and from about 20 to about 50 weight percent of the diol component.

19. The method of claim 18, further comprising forming a bio-based polyethylene terephthalate resin from the bio-based polyethylene terephthalate polymer, wherein the bio-based polyethylene terephthalate resin comprises at least about 0.1 dpm/gC of carbon-14.

20. The method of claim 18, wherein at least about ten weight percent of the ethylene glycol is derived from at least one bio-based material.

21. The method of claim 18, wherein at least about ten weight percent of the terephthalic acid is derived from at least one bio-based material.

22. The method of claim 18, wherein the at least one bio-based material is selected from corn, sugarcane, beet, potato, starch, citrus fruit, woody plant, cellulosic lignin, oily wood feedstock, and a combination thereof.

23. The method of claim 18, wherein step (a) further comprises

i. obtaining sugar or derivatives thereof from at least one bio-based material;

ii. fermenting sugar or derivatives thereof to ethanol;

iii. dehydrating ethanol to ethylene;

iv. oxidizing ethylene to ethylene oxide; and

v. converting ethylene oxide to ethylene glycol.

24. The method of claim 18, wherein step (a) further comprises

i. obtaining sugar or derivatives thereof from at least one bio-based material;

ii. reacting sugar or derivatives to form a mixture comprising ethylene glycol and at least one glycol excluding the ethylene glycol; and

iii. separating ethylene glycol from the mixture.

25. The method of claim 18, wherein step (b) further comprises

i. obtaining carene from at least one bio-based material;

ii. converting carene to cymene; and

iii. oxidizing cymene to terephthalic acid.

26. The method of claim 18, wherein step (b) further comprises

i. obtaining limonene from at least one bio-based material;

ii. converting the limonene to at least one terpene;

iii. converting the at least one terpene to cymene; and

iv. oxidizing cymene to terephthalic acid.

27. The method of claim 18, further comprising adding a supplemental component to the bio-based polyethylene terephthalate polymer, wherein the supplement component is selected from at least one coloring agent, at least one fast reheat additive, at least one gas barrier additive, at least one UV blocking additive, and a combination thereof.

28. The bio-based polyethylene terephthalate polymer produced by the method of claim 18.

29. A container comprising the bio-based polyethylene terephthalate polymer of claim 26.