Coating compositions comprising a silane modified compound

Patent metadata

Field	Value
Publication number	US-11214703-B2
Application number	US-202016781537-A
Country	US
Kind code	B2
Filing date	Feb 4, 2020
Priority date	Dec 20, 2017
Publication date	Jan 4, 2022
Grant date	Jan 4, 2022

Abstract

A coating composition comprising an acid functional acrylic resin and a silane modified compound is disclosed. Substrates coated at least in part with such coatings are also disclosed.

First claim

What is claimed is:

1. A coating composition comprising an acid functional acrylic resin and a silane modified compound, wherein the silane modified compound comprises the reaction product of a reaction mixture comprising
an aminosilane and/or an epoxy silane; and
a silicone comprising at least one silanol group.

2. The coating composition of claim 1 , wherein the silane comprises a mixture of aminosilane and epoxy silane.

3. The coating composition of claim 1 , wherein the silane modified compound further comprises the reaction product of an aminosilane and a phenolic novolak.

4. The coating composition of claim 1 , further comprising epoxidized vegetable oil.

5. The coating composition of claim 4 , wherein the epoxidized vegetable oil comprises epoxidized soy bean oil.

6. The coating composition of claim 1 , further comprising shellac.

7. The coating composition of claim 1 , further comprising amine terminated polyamide.

8. The coating composition of claim 1 , wherein the acid functional acrylic resin comprises methacrylic acid, methyl acrylate and ethyl methacrylate.

9. The coating composition of claim 1 , wherein a weight average molecular weight of the silicone comprising at least one silanol group is 17,000 to 23,000 as measured by GPC using a polystyrene standard.

10. The coating composition of claim 1 , wherein the silicone comprising at least one silanol group comprises a silanol functional silsesquioxane.

11. The coating composition of claim 1 , wherein the coating composition is substantially free of BPA, BADGE, BPF, and/or BFDGE.

12. The coating composition of claim 2 , wherein the acid functional acrylic resin comprises 45 wt % to 65 wt % of the coating composition based on total solids weight of the composition.

13. A substrate coated at least in part with the coating composition of claim 1 .

14. The substrate of claim 13 , wherein the substrate is a package.

15. The substrate of claim 14 , wherein the package is a metal can.

16. The substrate of claim 13 , wherein the substrate is a can end.

17. The substrate of claim 13 , wherein the substrate is the interior of a metal can body.

18. The substrate of claim 13 , wherein the substrate is the exterior of a metal can body.

Assignees

• Ppg Ind Ohio Inc

Inventors

• Mcvay Robert
• Most Christopher L
• Ewen Samantha

Classifications

• Y10T428/1355

  Elemental metal containing [e.g., substrate, foil, film, coating, etc.] · CPC title

• B05D7/227

  of containers, cans or the like · CPC title

• C09D161/06

  of aldehydes with phenols · CPC title

• C08G77/26 Primary

  nitrogen-containing groups · CPC title

• C09D183/06

  containing silicon bound to oxygen-containing groups (C09D183/12 takes precedence) · CPC title