The present invention has its object to provide an acrylic hot-melt pressure-sensitive adhesive composition showing only small changes in melt viscosity, showing good hot-melt applicability and excellent in initial cohesive force prior to moisture curing, and showing excellent tackiness and thermostable cohesive force after moisture curing.
The present invention relates to a acrylic block copolymer which comprises an acrylic polymer block (A) and an acrylic polymer block (B) differing in glass transition temperature range and having at least one crosslinkable functional group (X) at its molecular termini; and a reactive hot-melt adhesive composition which comprises the acrylic block copolymer described above.
本发明的目的是提供一种
丙烯酸热熔压敏胶组合物,该组合物的熔体粘度变化很小,在湿气固化前具有良好的热熔适用性和优异的初始内聚力,在湿气固化后具有优异的粘性和恒温内聚力。
本发明涉及一种
丙烯酸嵌段共聚物,它包括
玻璃化转变温度范围不同的
丙烯酸聚合物嵌段(A)和
丙烯酸聚合物嵌段(B),其分子末端至少有一个可交联官能团(X);还涉及一种活性热熔胶组合物,它包括上述
丙烯酸嵌段共聚物。