Adhesion promoters and compositions for containers and other articles
AssigneeSwimc LLC
InventorsSebastien Gibanel, Benjamin Campagne, Marie Braillon-Girard
Life of this patent
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Abstract
This invention provides a coating composition that contains an aromatic adhesion promoter. Containers and other articles comprising the coatings and methods of making such containers and other articles are also provided. The invention further provides compositions including the adhesion promoter, which have utility in a variety of coating end uses, including, for example, valve and pipe coatings.
Claims32
A coating composition, comprising:
- a binder polymer;
- and
- an aromatic adhesion promoter,
- wherein the aromatic adhesion promoter is the reaction product of an aromatic diepoxide and a sulfur-based or phosphorus-based acid, the reaction product has a number average molecular weight of less than 7,000, and the coating composition is substantially free of each of mobile or bound bisphenol A, bisphenol F, bisphenol S, and epoxides thereof, and wherein the aromatic diepoxide is a cashew nut shell liquid diepoxy.
A coated article, comprising a substrate having thereon a cured layer of a coating composition comprising:
- a binder polymer;
- and
- an aromatic adhesion promoter, wherein the aromatic adhesion promoter is the reaction product of an aromatic diepoxide and a sulfur-based or phosphorus-based acid, the reaction product has a number average molecular weight of less than 7,000, the coating composition is substantially free of each of mobile or bound bisphenol A, bisphenol F, bisphenol S, and epoxides thereof, and wherein the aromatic diepoxide is a cashew nut shell liquid diepoxy.
A method of preparing a container, comprising:
- applying a coating composition comprising:
- a binder polymer;
- and
- an aromatic adhesion promoter, wherein the aromatic adhesion promoter is the reaction product of an aromatic diepoxide and a sulfur-based or phosphorus-based acid, the reaction product has a number average molecular weight of less than 7,000, the coating composition is substantially free of each of mobile or bound bisphenol A, bisphenol F, bisphenol S, and epoxides thereof, and
- wherein the aromatic diepoxide is a cashew nut shell liquid diepoxy, to at least a portion of a surface of a substrate prior to or after forming the substrate into a container or a portion thereof.
A coating composition, comprising:
- a binder polymer;
- and
- an aromatic adhesion promoter,
- wherein the aromatic adhesion promoter is the reaction product of a suitable sulfur-based or phosphorus-based acid with a diepoxide compound of Formula (II):
- wherein R1 is null, R2 is (CH2)7—CH((CH2)6—CH3), R3 is CH2, R4 is H, v is 0, w is 4, n is 1, s is 1, and t is 1;
- and wherein the coating composition is substantially free of each of mobile or bound bisphenol A, bisphenol F, bisphenol S, and epoxides thereof.
A coating composition, comprising:
- a binder polymer;
- and
- an aromatic adhesion promoter,
- wherein the binder polymer comprises a polyester resin, a grafted polyester-acrylic resin, or a combination thereof;
- the aromatic adhesion promoter is the reaction product of an aromatic diepoxide and a sulfur-based or phosphorus-based acid;
- the reaction product has a number average molecular weight of less than 7,000;
- the coating composition is a liquid thermoset coating composition that includes a crosslinker and is substantially free of each of mobile or bound bisphenol A, bisphenol F, bisphenol S, and epoxides thereof;
- the crosslinker comprises an aminoplast curing agent;
- and the composition further includes a lubricant, a blocked isocyanate crosslinker, or both.
Dependencies are inferred from the claim text.