| 摘要 |
<p>Curable lactone derived resins are the reaction product of (a) a lactone modified resin of the formula <IMAGE> wherein X is the organic radical formed by removing at least one hydroxyl hydrogen atom from an ester containing from 1 to 3 acrylyl or alpha-substituted acrylyl groups and one or two hydroxyl groups, R is hydrogen or an alkyl group having from 1 to 12 carbon atoms, x is from 4 to 7 wherein at least (x+ 2) R's are hydrogen, n has an average value of from about 0.2 to about 5 and a is 1 or 2; and (b) an isocyanate. The lactone derived resins are especially useful for floor tile coatings which are UV curable. The coatings are abrasion resistant, yet are flexible.</p> |
