Pressure-sensitive adhesive sheet with low emission of sulfur-containing volatile components

摘要

A pressure-sensitive adhesive (PSA) sheet with low sulfur gas emission is provided. Metal corrosion due to outgassing components of the adhesive sheet is thereby prevented. The sheet comprises a PSA layer formed from a water-dispersed PSA composition. The PSA composition contains a water-dispersed acrylic polymer synthesized using a sulfur-containing chain transfer agent. Moreover, in a gas generation test whereby the PSA sheet is heated at 85°C for one hour, the emission of sulfur-containing gas is 0.043 ¼g or less per 1 cm 2 surface area of the sheet, when converted to SO 4 2- .