| abstract |
Provided are: a latex composition which is suitable for the use as a one-pack type aqueous adhesive that has excellent initial adhesive power in an extremely short drying time, storage stability and spray coatability, while forming a flexible adhesive layer after drying; and a one-pack type aqueous adhesive which uses this latex composition.nThis latex composition is configured to contain: 50-85% by mass in terms of solid content of (A) a chloroprene polymer latex containing a chloroprene polymer, and 15-50% by mass in terms of solid content of (B) an acrylic polymer latex which has a glass transition temperature of -52°C to -9°C and contains an acrylic polymer that contains a sodium alkylbenzene sulfonate having a structure represented by chemical formula (1), with the total of the components (A) and (B) being 100 parts by mass; and 3-13 parts by mass in terms of solid content of (C) at least one pH adjusting agent selected from among boric acid, ammonium sulfate and an amino acid having an isoelectric point of 5.5 to 6.5. |