| 摘要 |
<p>Radiation curable compositions comprising at least one radiation curable oligomer responding to a structure (C)-(B)-(A)-[(B)(C)] x wherein (A) is the residue of one or more hydroxyl functional polyester having a molecular weight M N higher than 900, a T G and/or T m of less than 30 °C, and which is obtained from an acid constituent comprising at least 75 mole % of saturated aliphatic polyacid and, optionally, 0 to 25 mole % of another polyacid and an alcohol constituent, (B) is the residue of one or more polyisocyanate, (C) is the residue of one or more ethylenically unsaturated hydroxyl compound, and x is from 0.5 to 10.</p> |
