| 摘要 |
<p>The invention provides an elastomer composition which comprises 33.5 to 95% by weight of an aromatic vinyl-isoprene block copolymer (a) having two or more poly(aromatic vinyl) blocks, 0 to 47.5% by weight of an aromatic vinyl-isoprene diblock copolymer (b), and 5 to 33% by weight of polyisoprene (c) having a weight average molecular weight of 20,000 to 100,000, and which has a content of aromatic vinyl monomer unit of 14 to 50% by weight based on the total amount of the components (a), (b) and (c). The invention further provides a pressure-sensitive adhesive composition comprising the elastomer composition and a tackifier resin. The invention intends to provide a pressure-sensitive adhesive composition which is excellent in the tackiness at low temperatures, peel strength at ordinary temperatures and holding power at high temperatures, and which is, when applied to pressure-sensitive adhesive labels, excellent in both the pressure-sensitive adhesive properties and die-cuttability, and further intends to provide an elastomer composition for producing the pressure-sensitive adhesive composition.</p> |
