| abstract |
PROBLEM TO BE SOLVED: To provide a hot melt adhesive. SOLUTION: The hot melt adhesive of the present invention comprises a styrene-butadiene-styrene block copolymer (A1), a styrene-butadiene-styrene block copolymer (A2), and a styrene-isoprene-styrene block copolymer. It contains at least one styrene block copolymer (A4) selected from the group consisting of polymers (A3), and includes a styrene-butadiene-styrene block copolymer (A1) and a styrene block copolymer (A4). A styrene-based copolymer (A) containing a predetermined amount of a styrene-butadiene-styrene block copolymer (A1) with respect to the total amount, a tackifier (B), and a plasticizer (C). The melt viscosity is 6,000 mPa ยท s or less. [Selection figure] None |