| abstract |
Provided is an adhesive agent which can exhibit high adhesion force to a polyolefin. The adhesive agent comprises: a chloroprene copolymer latex containing a chloroprene copolymer (A); and a metal oxide (B). The chloroprene copolymer (A) is a copolymer of a monomer group comprising chloroprene (A-1), an α,β-unsaturated carboxylic acid (A-2) and 2,3-dichloro-1,3-butadiene (A-3). The chloroprene copolymer (A) has a tetrahydrofuran-soluble component that is soluble in tetrahydrofuran, and the tetrahydrofuran-soluble component has a weight average molecular weight of 80,000 to 140,000 inclusive. When the amount of the metal oxide (B) relative to 100 parts by mass of the chloroprene copolymer (A) is defined as "Y" part(s) by mass and the weight average molecular weight of the tetrahydrofuran-soluble component is defined as "X", the content of the metal oxide (B) satisfies the formula: -1.2×X/100000+1.6 < Y < -4.2×X/100000+5.7. |