Coating composition comprising a bicyclo- or spiro-orthoester functional compound

US6593479B2 · kind B2 · utility

Assignee

• AKZO NOBEL N.V. · NL

Inventors

• Keimpe Jan Van Den Berg · Sassenheim, NL
• Klaus Hobel · Zell am Harmersbach, DE
• Huig Klinkenberg · Katwijk, NL
• Arie Noomen · Voorhout, NL
• Josephus Christiaan Van Oorschot · Geleen, NL

Key dates

• Filing date: Aug 22, 2001
• Grant date: Jul 15, 2003
• Expiry date: Aug 22, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31551
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention pertains to a coating composition comprising a first compound comprising at least one bicyclo- or spiro-orthoester group and a second compound comprising at least two hydroxyl-reactive groups. The invention also comprises a process for curing the present coating composition. More particularly, the latent hydroxyl groups of the bicyclo- or spiro-orthoester groups have to be deblocked and reacted with the hydroxyl-reactive groups of the second compound if the present coating composition is to be cured. Further, a process for making bicyclo-orthoester compounds from the corresponding oxetane compound is described, as are polymers comprising at least one bicyclo- or spiro-orthoester group.