Polyol catalyst for a two-component polyurethane system

Abstract

Polyol catalyst for a two-component polyurethane system The present invention relates to a polyol catalyst for the production of polyurethanes comprising: at least two alcohol functions, at least one catalyst function chosen from imidazole and/or tertiary amine functions, at least one urea function. The present invention also relates to a process for preparing a catalyst according to the invention. A crosslinkable two-component polyurethane composition comprising: a) a polyisocyanate component, b) a polyol component based on a polyol catalyst according to the invention, and optionally another polyol component free of a catalyst function chosen from imidazole and/or tertiary amine functions, is also part of the invention. Lastly, the invention relates to a coating composition based on a crosslinkable two-component polyurethane composition according to the invention, a process for preparing such a coating, and a substrate coated with a crosslinkable two-component polyurethane composition according to the invention.

Dependencies are inferred from the claim text.