HEAT RESISTANT ACRYLIC ADHESIVE COMPOSITION

The purpose of the present invention is to provide an acrylic adhesive having excellent adhesive strength at high temperatures and excellent elongation of a cured product. As a solution, provided is a two-pack type acrylic adhesive composition characterized by containing (A) a urethane (meth) acrylate having a low-crystallinity polytetramethylene glycol as a main chain skeleton, (B) a polymerizable vinyl monomer, (C) an organic peroxide, and (D) a reducing agent as essential components. 本发明的目的在于提供一种在高温下的粘接强度优异，且固化物的延伸优异的丙烯酸类粘接剂。作为解决方法，提供一种二液混合型丙烯酸类粘接剂组合物，其特征在于，以(A)以低结晶性聚四亚甲基二醇为主链骨架的聚氨酯(甲基)丙烯酸酯、(B)聚合性乙烯基单体、(C)有机过氧化物、(D)还原剂为必需成分。