Patent ID: 8715797

Claim:
A hot-melt pressure-sensitive adhesive (HMPSA) composition comprising: (a) 25 to 50% by weight of a blend of styrene block copolymers comprising 20 to 90% by weight of one or more styrene/butadiene/styrene (SBS) triblock copolymers and 10 to 80% by weight of one or more styrene/butadiene (SB) diblock copolymers, the overall content of styrene units of said blend being between 15 to 40% by weight; (b) 45 to 75% by weight of one or more compatible tackifying resins having a softening temperature of between 80 and 150° C.; and (c) 0.5 to 5.5% by weight of one or more polycarboxylic fatty acid of the dimer or trimer type, the hydrocarbon chain of which comprises 10 to 22 carbon atoms, in acid form or in the form of a salt of an alkali or alkaline-earth metal.