Coating composition comprising a bicyclo-orthoester-functional compound, an isocyanate-functional compound, and a thiol-functional compound

US6548617B2 · kind B2 · utility

Assignee

• AKZO NOBEL N.V. · NL

Inventors

• Keimpe Jan Van Den Berg · Sassenheim, NL
• Judith Johanna Maria Adriana Loenen · Alphen aan den Rijn, NL
• Frederik Rous · Amsterdam, NL
• Huig Klinkenberg · Katwijk, NL
• Eric Gerardus Johanus Oude Spraakste · Alphen aan den Rijn, NL
• Arie Noomen · Voorhout, NL

Key dates

• Filing date: Nov 30, 2001
• Grant date: Apr 15, 2003
• Expiry date: Nov 30, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D175/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention pertains to a coating composition comprisinga) a first compound comprising at least one bicyclo-orthoester group,b) a second compound comprising at least two isocyanate groups, andc) a third compound comprising at least one thiol group.The invention also relates to a process for curing the present coating composition. More particularly, the latent hydroxyl groups of the bicyclo-orthoester groups have to be deblocked and reacted with the isocyanate-groups of the second compound if the present coating composition is to be cured.