POLYESTER COPOLYMER AND COATING COMPOSITIONS THEREFROM HAVING IMPROVED CORROSION RESISTANCE
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United States of America Patent
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Issued Date -
Jul 18, 2024
app pub date -
May 26, 2022
filing date -
May 26, 2021
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Abstract
A polyester copolymer useful for food and beverage container coatings is disclosed. The copolymer is derived from ingredients including at least a diepoxide, such as a diglycidyl ether, and a glass transition increasing monomer, such as a pentaspiroglycol. In some approaches, the polyester copolymer is derived from reaction of a polyester prepolymer and a diepoxide resin.
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