Coatings comprising branched polyester-urethane resins

US10392467B2 · kind B2 · utility

Assignee

• PPG Industries Ohio, Inc. · US

Inventors

• Francesco Ciaccio · Alessandria, IT
• Annamaria Antonaci · Alessandria, IT
• Eddy Bonello · Villanova Monferrato, IT
• Stephane Schoch · Beinstein, DE
• Wolfgang Klaeger · Leonberg, DE
• Beate Seiler · Affaltrach, DE
• Jose Antonio Camerano · Ludwigsburg, DE
• Debra L. Singer · Wexford, US
• John E. Schwendeman · Wexford, US
• Shanti Swarup · Allison Park, US

Key dates

• Filing date: Jun 27, 2018
• Grant date: Aug 27, 2019
• Expiry date: Jun 27, 2038

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31786
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Coatings comprising an uncured branched polyester-urethane resin prepared by free radical polymerization of an unsaturated polyester prepolymer having a polyol segment, an unsaturated polycarboxylic acid and/or an anhydride and/or ester thereof, and a urethane segment, wherein the polymerization occurs primarily by reaction of the unsaturation are disclosed.