Aqueous-based coating composition containing hydroxy-terminated polybutadiene

Patent metadata

Field	Value
Publication number	US-10442953-B2
Application number	US-201314062928-A
Country	US
Kind code	B2
Filing date	Oct 25, 2013
Priority date	Aug 29, 2011
Publication date	Oct 15, 2019
Grant date	Oct 15, 2019

Abstract

An aqueous-based coating composition suitable as a container coating comprising:
(A) a resinous phase comprising
(i) an at least partially neutralized acid functional polymer containing reactive functional groups, (ii) a phenolic compound and an aldehyde or the reaction product thereof, (iii) a hydroxy-terminated polybutadiene; 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) 20 to 35 percent by weight of an at least partially neutralized acid functional polymer containing reactive functional groups,
(ii) 40 to 60 percent by weight of a phenolic compound and an aldehyde or the reaction product thereof,
(iii) 2.5 to 10 percent by weight of a hydroxy-terminated polybutadiene;
the resinous phase dispersed in

(B) aqueous medium.

2. 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.

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

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

5. The aqueous-based coating composition of claim 1 in which the acid functional polymer comprises carboxylic acid groups.

6. The aqueous-based coating composition of claim 1 in which the reactive functional groups are selected from hydroxyl and N-alkoxymethyl groups.

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

8. The aqueous-based coating composition of claim 1 containing an alkyl-phenyl silsesquioxane resin in the resinous phase.

9. 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 .

10. The coated article of claim 9 in which the substrate is a container.

11. The coated article of claim 10 in which the container is a food or beverage container.

12. The coated article of claim 11 in which the coating is on the interior surface of the container.

Assignees

• Ppg Ind Ohio Inc

Inventors

• Most Christopher L
• Mcvay Robert

Classifications

• C08G8/32

  by organic acids or derivatives thereof, e.g. fatty oils · CPC title

• C08L2205/02

  containing two or more polymers of the same C08L -group · CPC title

• Y10T428/1352

  Polymer or resin containing [i.e., natural or synthetic] · CPC title

• C09D161/06 Primary

  of aldehydes with phenols · CPC title

• C08L2201/54

  Aqueous solutions or dispersions · CPC title