Aqueous-based coating composition containing an oleoresinous component

Patent metadata

Field	Value
Publication number	US-9752044-B2
Application number	US-201313968468-A
Country	US
Kind code	B2
Filing date	Aug 16, 2013
Priority date	Aug 16, 2013
Publication date	Sep 5, 2017
Grant date	Sep 5, 2017

Abstract

An aqueous-based coating composition suitable as a container coating comprising:
(A) a resinous phase comprising
(i) an organic oil, (ii) an at least partially neutralized acid functional polymer containing reactive functional groups, (iii) a phenolic compound and an aldehyde or the reaction product thereof; the resinous phase dispersed in
(B) aqueous medium.

First claim

What is claimed is:

1. An aqueous-based coating composition comprising:
(A) a resinous phase of
(i) 10 to 30 percent by weight of an organic oil,
(ii) 20 to 35 percent by weight of an at least partially neutralized acid functional polymer containing reactive functional groups,
(iii) 15 to 60 percent by weight of a phenolic compound and an aldehyde or the reaction product thereof;
the resinous phase dispersed in

(B) aqueous medium;

the percentages by weight being based on weight of resin solids in the coating composition.

2. The aqueous-based coating composition of claim 1 in which (i), (ii) and (iii) are heated together.

3. The aqueous-based coating composition of claim 2 in which (i), (ii) and (iii) are heated together at 80 to 130° F. (27 to 54° C.).

4. The aqueous-based coating composition of claim 3 in which (i), (ii) and (iii) are heated together for 60 to 180 minutes.

5. The aqueous-based coating composition of claim 1 in which the phenolic compound and the aldehyde are condensed and at least a portion of the resulting condensate is reacted with the organic oil at 80 to 130° F. (27 to 54° C.).

6. The aqueous-based coating composition of claim 1 in which at least a portion of the phenolic compound, at least a portion of the aldehyde and at least a portion of the organic oil are heated together simultaneously at 80 to 130° F. (27 to 54° C.).

7. The aqueous-based coating composition of claim 1 in which the phenolic compound is selected from the group consisting of phenol and an alkylated phenol.

8. The aqueous-based coating composition of claim 1 in which the aldehyde is formaldehyde.

9. The aqueous-based coating composition of claim 1 in which the organic oil has an iodine number of 10 to 180.

10. The aqueous-based coating composition of claim 1 in which the organic oil is a vegetable oil.

11. The aqueous-based coating composition of claim 1 in which the organic oil is tung oil.

12. The aqueous-based coating composition of claim 1 in which the acid functional polymer is a copolymer of (meth)acrylic monomers.

13. The aqueous-based coating composition of claim 1 in which the acid groups are carboxylic acid groups.

14. The aqueous-based coating composition of claim 12 in which the reactive functional groups are selected from hydroxyl and N-alkoxymethylol groups.

15. The aqueous-based coating composition of claim 1 containing an amine-terminated polyamide in the resinous phase.

16. The aqueous-based coating composition of claim 1 containing a polysilicone resin in the resinous phase.

17. The aqueous-based coating composition of claim 1 containing a copolymer of (meth)acrylic monomers free of acid functionality and containing reactive functional groups.

18. A coated article comprising:
(A) a substrate and
(B) a coating deposited on at least a portion of the substrate from the composition of claim 1 .

19. The coated article of claim 18 in which the substrate is a container.

20. The coated article of claim 19 in which the container is a food or beverage container.

21. The coated article of claim 20 in which the coating is on the interior surface of the container.

22. The coated article of claim 18 , wherein the at least a portion of the substrate comprises a metal surface.

23. The coated article of claim 22 , wherein the coating is deposited directly onto the metal surface.

24. The coated article of claim 23 , wherein the coating is free from a subsequently applied top coating.

25. The aqueous-based coating composition of claim 1 further comprising a functional silicone resin in the resinous phase, the functional silicone resin having a functional group that is reactive with (iii).

26. The aqueous-based coating composition of claim 25 , wherein the functional group is hydroxyl.

27. The aqueous-based coating composition of claim 25 , wherein the functional silicone resin comprises a phenyl group.

28. The aqueous-based coating composition of claim 26 , wherein the functional silicone resin comprises a phenyl group.

Assignees

• Ppg Ind Ohio Inc

Inventors

• Most Christopher L
• Mcvay Robert

Classifications

• C09D161/06

  of aldehydes with phenols · CPC title

• C08K5/04

  Oxygen-containing compounds {(C08K5/0091 takes precedence)} · CPC title

• C09D5/022 Primary

  Emulsions, e.g. oil in water · CPC title

• C09D201/00

  Coating compositions based on unspecified macromolecular compounds · CPC title

• C09D133/08 Primary

  Homopolymers or copolymers of acrylic acid esters · CPC title