| 摘要 |
<p>Hot-melt pressure-sensitive adhesive (HMPSA) composition comprising: a) 25 to 50% of a styrene block copolymer chosen from the group comprising SIS, SIBS, SEBS and SEPS block copolymers; b) 35 to 75% of a compatible tackifying resin having a softening temperature of between 80 and 150° C. and an acid number of less than 20; and c) 0.5 to 20% of one or more carboxylic acids, the hydrocarbon chain of which comprises 6 to 54 carbon atoms. Multilayer system comprising an HMPSA layer, a printable support layer and an adjacent protective layer. Corresponding self-adhesive label and process for recycling a labeled article, with debanding of said label by immersing the article in a hot basic aqueous solution.</p> |
