Food or beverage containers coated with polymers of di(amido(alkyl)phenol) compounds

1. An article comprising:

a. a food or beverage packaging container, or portion thereof, having a food or beverage contact surface comprising a metal substrate; and

b. a coating formed from a coating composition disposed in powdered form on the food or beverage contact surface;

the coating composition comprising a polymer made from an α, Ω telechelic di(amido(alkyl)phenol) and a material that reacts with hydroxyl groups on phenol rings, and being substantially free of bisphenol A and bisphenol F, and wherein the polymer is a polyester, polyurethane, polycarbonate or phenolic resin.

2. The article according to claim 1 , wherein the material that reacts with hydroxyl groups on phenol rings is an epoxide.

3. The article according claim 2 , wherein the material that reacts with hydroxyl groups on phenol rings is epichlorohydrin.

4. The article according to claim 2 , wherein the epoxide is a diepoxide and the polymer includes —CH 2 —CH(OH)—CH 2 — or —CH 2 —CH 2 —CH(OH)— segments.

5. The article according to claim 1 , wherein the polymer is an epoxy-terminated or phenoxy-terminated polyether.

6. The article according to claim 1 , wherein the polymer has air oxidizable unsaturated groups.

7. The article according to claim 1 , wherein the polymer is free radically curable.

8. The article according to claim 1 , wherein the coating composition further comprises a lubricant that facilitates manufacture of fabricated metal articles by imparting lubricity to the coated metal substrate, a pigment, a curing agent and a catalyst to increase the rate of cure.

9. The article according to claim 1 , wherein the food or beverage packaging container comprises a two-piece drawn food can, a three-piece food can, a food can end, a drawn and ironed food or beverage can, a beverage can end, an easy open can end, or a twist-off closure lid.

10. An article comprising:

a. a food or beverage packaging container, or portion thereof, having a food or beverage contact surface comprising a metal substrate; and

b. a coating formed from a coating composition disposed in liquid or powdered form on the food or beverage contact surface;

the coating composition comprising a polymer made from a polyphenol and a material that reacts with hydroxyl groups on phenol rings, and wherein the polyphenol has the formula:

wherein:

x and y may be the same or different, and are each an integer from 1 to 3;

m and n may be the same or different, and are 0 or 1;

R 1 and R 5 may be the same or different and independently are monovalent atoms or monovalent organic groups which may contain heteroatoms;

R 2 and R 4 may be the same or different and when present independently are divalent linear aliphatic organic groups containing 1 to 12 carbon atoms and may contain heteroatoms; and

R 3 is a divalent organic group that may contain heteroatoms.

11. The article according to claim 10 , wherein the polyphenol has Formula I.

12. The article according to claim 10 , wherein the polyphenol has Formula II.

13. The article according to claim 10 , wherein x and y are 1 and R 1 and R 5 are hydrogen.

14. The article according to claim 10 , wherein R 3 is a divalent linear aliphatic group.

15. The article according to claim 10 , wherein the polymer is made from a para-cresol-terminated diamide of Formula I having the formula:

in which x and y in Formula I are 1, m and n are 1, R 1 and R 5 are hydrogen and R 3 is the decylene radical —(CH 2 ) 10 —, or wherein the polymer is made from a para-cresol-terminated diamide of Formula I having the formula:

in which x and y in Formula I are 1, m and n are 1, R 1 and R 5 are hydrogen and R 3 is the radical —(CH 2 ) 3 O(CH 2 ) 2 O(CH 2 ) 3 —.

16. The article according to claim 10 , wherein the coating composition further comprises a lubricant that facilitates manufacture of fabricated metal articles by imparting lubricity to the coated metal substrate, a pigment, a curing agent and a catalyst to increase the rate of cure.

17. The article according to claim 10 , wherein the food or beverage packaging container comprises a two-piece drawn food can, a three-piece food can, a food can end, a drawn and ironed food or beverage can, a beverage can end, an easy open can end, or twist-off closure lid.

18. The article according to claim 10 , wherein the coating composition comprises the polymer in the liquid carrier, and wherein the liquid carrier comprises one or more organic solvents.

19. The article according to claim 10 , wherein the coating composition comprises the polymer in the liquid carrier, and wherein the liquid carrier comprises water.

20. The article according to claim 10 , wherein the coating composition is in powdered form.

21. The article according to claim 10 , wherein the coating composition is substantially free of bisphenol A and bisphenol F.

22. A method for making a coated food or beverage packaging container, the method comprising:

applying to a food or beverage contact surface of a metal substrate a liquid or powdered coating composition comprising a polymer made from a polyphenol and a material that reacts with hydroxyl groups on phenol rings, wherein the polyphenol has the formula:

wherein:

x and y may be the same or different, and are each an integer from 1 to 3;

m and n may be the same or different, and are 0 or 1;

R 1 and R 5 may be the same or different and independently are monovalent atoms or monovalent organic groups which may contain heteroatoms;

R 2 and R 4 may be the same or different and when present independently are divalent linear aliphatic organic groups containing 1 to 12 carbon atoms and may contain heteroatoms; and

R 3 is a divalent organic group that may contain heteroatoms;

hardening the composition; and

forming the metal substrate into a food or beverage packaging container or portion thereof prior to or after applying the coating composition to the metal substrate.