申请人:BOSTIK SA
公开号:US10875954B2
公开(公告)日:2020-12-29
The invention relates to a method for synthesizing NCO-terminated polyurethanes having improved elastic properties, said method involving the staggered addition of diisocyanate(s). The invention also relates to NCO-terminated polyurethanes that have high elongation at break and can be obtained using the disclosed method. The invention finally relates to adhesive, mastic and/or coating compositions comprising the disclosed NCO-terminated polyurethane.
本发明涉及一种合成具有更好弹性性能的 NCO 端聚氨酯的方法,所述方法涉及交错添加二异氰酸酯。本发明还涉及一种 NCO 端聚氨酯,该聚氨酯具有较高的断裂伸长率,可通过所公开的方法获得。最后,本发明还涉及包含所公开的 NCO 端聚氨酯的粘合剂、胶泥和/或涂料组合物。