| abstract |
(57) [Summary] [Purpose] An adhesive composition that has excellent adhesiveness and cohesiveness at room temperature and high temperature, and initial adhesiveness at low temperature, and that suppresses the adhesive force when cooled to low temperature after being heated to high temperature. And a masking tape using the pressure-sensitive adhesive composition having improved temperature dependence. [Structure] 100 parts by weight of an elastomer component (A) consisting of 40 to 95% by weight of natural rubber and 5 to 60% by weight of styrene-butadiene copolymer rubber, a sulfur-based crosslinking agent (B), and a liquid rubber having a functional group (C ) 5 to 100 parts by weight, and a pressure-sensitive adhesive composition containing a crosslinking agent (D) having reactivity with a functional group of the liquid rubber, and coating the pressure-sensitive adhesive composition on a tape substrate. Masking tape made up of. |