High Tg coatings
AssigneePepsiCo, Inc.
InventorSaid Farha
Life of this patent
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Abstract
Articles are coated by applying a coating composition of a high Tg phenoxy-type material having a Tg of at least about 75° C. to at least a portion of a surface of an article, and forming a dried/cured coating of the high Tg phenoxy-type material on the article surface, where the coating has the high Tg phenoxy-type material and a PHAE; or the article surface comprises a coating includes a PHAE; or the coating has the high Tg phenoxy-type material and a PHAE, and the article surface includes a coating layer of a PHAE.
Claims17
A method of coating an article, the method comprising:
- applying a coating composition comprising a high Tg phenoxy-type material having a Tg of at least about 75° C. to at least a portion of a surface of an article;
- and
- forming a dried/cured coating comprising the high Tg phenoxy-type material on the article surface;
- wherein
- the coating composition comprising the high Tg phenoxy-type material further comprises a PHAE;
- or
- the article surface comprises a coating comprising a PHAE;
- or
- the coating comprising the high Tg phenoxy-type material further comprises a PHAE, and the article surface comprises a coating layer comprising a PHAE.
A coating composition, comprising two resins, wherein:
- the first resin is a high Tg phenoxy-type material, and the second resin is a PHAE material;
- the two resins are present in a weight ratio of high Tg phenoxy-type material to PHAE of from about 10:90 to about 50:50, based on the total weight of the two resins;
- and
- the composition is one of a dispersion of the two resins, adapted for dip, spray, or flow coating, and a melt blend of the two resins, adapted for overmolding.
A coated article, comprising:
- an article substrate, having a surface;
- and
- a coating layer comprising a high Tg phenoxy-type material having a Tg of at least about 75° C. on at least a portion of the surface of the article;
- wherein
- the coating layer comprising the high Tg phenoxy-type material further comprises a PHAE;
- or
- a coating layer comprising a PHAE is positioned between the coating layer comprising the high Tg phenoxy-type material and the article substrate surface;
- or
- the coating layer comprising the high Tg phenoxy-type material further comprises a PHAE, and a coating layer comprising a PHAE is positioned between the coating layer comprising the high Tg phenoxy-type material and the article substrate surface.
Dependencies are inferred from the claim text.