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US 10,767,000 B2Granted
BPA-free coatings
AssigneeBattelle Memorial Institute
InventorsRamanathan S. Lalgudi, Robert J. Cain
Life of this patent
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Abstract
Provided are poly(AAG)-compositions, and corresponding coatings, foams, and coated articles. Also provided are methods for preparing the poly(AAG)-compositions and corresponding reagents including. e.g., polyol-AAG compositions. Coatings using the poly(AAG)-compositions may be useful for, e.g., replacing bisphenol-A cross-linked coatings used in food and beverage containers, coating metal articles, and the like.
Claims8
A method for preparing an acetoacetyl group (AAG) composition comprising:
- providing a poly-functional compound comprising two or more functional groups, each functional group independently being hydroxy, amino, or alkenyl, at least a portion of the poly-functional compound being a polyol derived from one or more of a pyrolyzed bio-oil and an alkoxylated pyrolyzed bio-oil, provided that the poly-functional compound is not a triglyceride-derived oil;
- and
- reacting the poly-functional compound under conditions effective to form the AAG composition by one or more of:
- contacting the poly-functional compound with a ketene compound, wherein the poly-functional compound comprises at least one hydroxy group;
- contacting the poly-functional compound with a β-ketoester, wherein the poly-functional compound comprises at least one hydroxy or amino group;
- contacting the poly-functional compound with a peroxo reagent and one or more of:
- a β-ketoimide, a β-ketoester, and a β-ketoacid, wherein the poly-functional compound comprises at least one alkenyl group;
- and contacting the poly-functional compound with a mercaptoalkanol in the presence of an initiator effective to form a mercaptoalkanol-substituted compound;
- the poly-functional compound comprising at least one alkenyl group;
- and further reacting the mercaptoalkanol-substituted compound with one or more of:
- the β-ketoester and the β-ketoacid.
8 more elements
Dependencies are inferred from the claim text.