Coating Compositions, Elastic Barrier Coatings Formed Therefrom, and Methods of Applying Such Coatings

A coating composition includes an aqueous carrier medium, at least a first polymer, and polymeric core-shell particles dispersed in the aqueous carrier medium. The first polymer includes: (i) a barrier segment having aromatic groups and urethane linkages, urea linkages, or a combination thereof; and...

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Bibliographische Detailangaben
Hauptverfasser: Jordan, Jennifer Tamaki, Martin, Roxalana L, Bowman, Mark P, Tucker, Mark A, Zhou, Hongying, Faler, Dennis L, Xu, Xiangling, Swarup, Shanti
Format: Patent
Sprache:eng
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Zusammenfassung:A coating composition includes an aqueous carrier medium, at least a first polymer, and polymeric core-shell particles dispersed in the aqueous carrier medium. The first polymer includes: (i) a barrier segment having aromatic groups and urethane linkages, urea linkages, or a combination thereof; and (ii) an elastomeric segment having a glass transition temperature of less than 0° C. The barrier segment can make up at least 30% of the first polymer, based on the total solids weight of the first polymer.