Coating composition
AssigneeBP Corporation North America Inc.
InventorRonald Leslie Anderson
Life of this patent
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Abstract
A coating composition is disclosed that is intended for application to the interior surface of a can and is free of Bisphenol A diglycidyl ether and comprises a phenoxy group-containing or amino group-containing resin, a nonaqueous carrier and a polyester resin formed from (a) isophthalic acid, (b) naphthalene dicarboxylic acid or an ester thereof, (c) trimellitic anhydride or trimethylpropane and (d) neopentyl glycol.
Claims17
A coating composition for application to an interior surface of a can, comprising a phenoxy group-containing or amino group-containing resin that serves as a hardener or cross-linking agent, in an amount ranging from about 2 to about 45 weight percent of the coating composition;
- a polyester resin in an amount in the range of from about 6 to about 59 weight percent of the coating composition;
- and a nonaqueous carrier in the range of from about 35 to about 80 weight percent of the coating composition, wherein the polyester resin comprises a condensation product formed from (a) from about 2 to about 48 mole percent of isophthalic acid, (b) from about 2 to about 48 mole percent of a naphthalene dicarboxylic acid or alkyl ester thereof, (c) from about 0 to about 10 mole percent of trimellitic anhydride or trimethylolpropane, and (d) from about 30 to about 60 mole percent of neopentyl glycol.
Dependencies are inferred from the claim text.