| 摘要 |
The present invention provides a water-dispersed acrylic PSA composition suitable for forming a PSA sheet. The PSA composition contains 100 parts by weight of an acrylic copolymer with a Tg of -70°C to -50°C obtained by polymerization of a monomer starting material containing 60 wt% or more of an alkyl (meth)acrylate with a C 8-12 alkyl group and 5 wt% or less of a radical polymerizable monomer with a carboxyl group, preferably acrylic acid and methacrylic acid in weight ratio between 0.1 and 10. When an adhesive sheet is formed therefrom, it exhibits an average adhesive strength of 11 N/20 mm or greater on stainless steel, adhesive strength of 8.5 N/20 mm or greater on polypropylene. |
