| abstract |
A process for the preparation of compounds containing isocyanurate groups and olefinic double bonds by reacting a) a polyisocyanate component containing isocyanurate group polyisocyanates with b) hydroxyalkyl esters of acrylic acid or methacrylic acid and c) a polyol component consisting essentially of a polyester polyol of OH Number 80 to 350 based on (i) an acid component consisting of at least 80 carboxyl equivalent% of adipic acid and / or isophthalic acid and (ii) a polyol component consisting of at least 70 hydroxyl equivalent% of 1,6-hexanediol, where the amount of component c) makes up 20 to 150% by weight, based on the weight of component b), and the reaction is carried out while maintaining an NCO / OH equivalent ratio of 0.9: 1 to 1.1: 1, and the use of the compounds thus obtainable as binders for under the influence of radiation or of peroxides in the presence of atmospheric oxygen f curable coating materials. |