Methods and materials for the functionalization of polymers and coatings including functionalized polymer

US11383886B2 · kind B2 · utility

Assignee

• The Sherwin-Williams Company · US

Inventors

• Carl Cavallin · Albertville, US
• Charles Skillman · Zelienople, US
• Richard H. Evans · Wexford, US
• Larry B. Brandenburger · Lino Lakes, US
• T. Howard Killilea · Minneapolis, US
• George W. O'Dell · Lawson, US

Key dates

• Filing date: Jul 2, 2020
• Grant date: Jul 12, 2022
• Expiry date: Sep 2, 2040

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/1355
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The disclosure provides a functionalized polymer for use in coating compositions and a method for making the functionalized polymer. In some embodiments, the functionalized polymer is a water-dispersible polymer, more preferably a water-dispersible polyester polymer, having one or more side groups including one or more salt groups. Packaging containers (e.g., food or beverage cans) comprising the functionalized polymer and methods of making such containers are also provided.