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US 8,911,874 B2Granted
Aqueous dispersions and coatings
AssigneeValspar Sourcing, Inc.
InventorsRobert M. O'Brien, Grant Schutte, Jeffrey Niederst, John W Condit, Dawn Herko, Daniel E Rardon
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Abstract
The present invention provides aqueous dispersions that, for example, include the reaction product of an oxirane-functional vinyl addition polymer having an oxirane functionality between 0.5 and 5; an acid-functional polymer having an acid number 30 to 500; and a tertiary amine. Also described are coating compositions containing the dispersion and methods of forming the dispersion.
Claims20
A method, comprising:
- providing a coating composition comprising an aqueous dispersion including:
- a reaction product of an oxirane-functional vinyl addition polymer, an acid-functional polymer, and a tertiary amine, and
- a crosslinker;
- and
- applying the aqueous dispersion to a metal substrate of a food or beverage can;
- and
- hardening the aqueous dispersion to form a cured film.
4 more elements
A method, comprising:
- providing a coating composition comprising an aqueous dispersion including:
- a reaction product of an oxirane-functional vinyl addition polymer, an acid-functional polymer, and a tertiary amine, and
- a phenoplast resin;
- spray applying the coating composition on an inside surface of a metal food or beverage can;
- and
- hardening the aqueous dispersion to form a cured film.
3 more elements
A method, comprising:
- providing a coating composition that is substantially free of BPA and aromatic glycidyl ether compounds, the coating composition comprising an aqueous dispersion including:
- a reaction product of an oxirane-functional vinyl addition polymer, an acid-functional vinyl addition polymer, and a tertiary amine, and
- a phenoplast resin;
- spray applying the coating composition on an inside surface of a metal food or beverage can;
- and
- hardening the aqueous dispersion to form a cured film.
3 more elements
Dependencies are inferred from the claim text.