A toughened cyanoacrylate adhesive composition including a cyanoacrylate monomer and an elastomeric copolymer soluble in the monomer, the copolymer being the reaction product of an olefin C
2-20
and a (meth)acrylate ester. The invention further discloses novel elastomeric copolymers which do not contain additives or functional groups which can interfere with the cure rate or stability of the adhesive composition in which they are included. Benefits of the copolymers include improved toughness of the cured adhesive composition as measured by Dynamic Mechanical Analysis.
一种增韧的
氰基丙烯酸酯粘合剂组合物,包括
氰基丙烯酸酯单体和可溶于该单体的弹性共聚物,该共聚物是烯烃 C
2-20
和(甲基)
丙烯酸酯的反应产物。本发明进一步公开了新型弹性共聚物,这些共聚物不含可能干扰其中所含粘合剂组合物固化速率或稳定性的添加剂或官能团。共聚物的优点包括通过动态机械分析法测量的固化胶粘剂组合物的韧性得到改善。