Acrylic polyester resin and an aqueous coating composition containing the same

US11981764B2 · kind B2 · utility

Assignee

• PPG Industries Ohio, Inc. · US

Inventors

• Adam B. Powell · Wexford, US
• William H. Retsch, Jr. · Allison Park, US
• Edward R. Millero, Jr. · Gibsonia, US
• John M. Dudik · Vandergrift, US
• Christopher P. Kurtz · Shaler Township, US
• Michael Olah · Pittsburgh, US
• Anand K. Atmuri · Wexford, US

Key dates

• Filing date: May 4, 2021
• Grant date: May 14, 2024
• Expiry date: Jun 22, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2150/90
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

There is described an acrylic polyester resin, obtainable by grafting an acrylic polymer with a polyester material. The polyester material is obtainable by polymerizing (i) a polyacid component, with (ii) a polyol component, including—2,2,4,4-tetraallcylcyclobutane-1,3-diol. One of the polyacid component or the polyol component comprises a functional monomer operable to impart functionality on to the polyester resin, such that an acrylic polymer may be grafted with the polyester material via the use of said functionality. Also provided is an aqueous coating composition comprising the acrylic polyester resin and a metal packaging containing coated with the composition.