| 摘要 |
A pressure sensitive adhesive which exhibits both improved adhesive characteristics and improved convertibility. This adhesive is obtained by combining a typical styrenic block copolymer, blended with tackifying resins, whether natural or hydrocarbon based, and including, a styrene isoprene di-block copolymer. The effect of this use of styrene isoprene di-block copolymer, besides the expected result of reducing the tendency of conventional plasticizers to migrate from the adhesive and cause staining of the label stock or release liner, also has the unexpected results of substantially improved temperature performance and a very substantial improvement in ability to be die cut. |
