Blocked polyisocyanates with improved thermal stability

Details Blocked polyisocyanates with improved thermal stability Blocked polyisocyanates with improved thermal stability

C - Chemistry, Metallurgy

07

D

C07D 233/78 (2006.01) C08G 18/78 (2006.01) C08G 18/80 (2006.01) C09D 175/00 (2006.01)

Patent

CA 2172674

The present invention relates to blocked polyisocyanates containing at least two isocyanate groups which are reversibly blocked with a monofunctional blocking agent for isocyanate groups and at least two isocyanate groups in the form of thermally stable hydantoin groups. The present invention also relates to one-component coating compositions containing these blocked polyisocyanates and compounds containing at least two isocyanate-reactive groups.

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