melt adhesive composition by heat to labels.

It PRESENTS A composition of a block copolymer derived from copolymerizing monoalkenyl arene and a conjugated diene having from 4 and 5 carbon atoms, and comprising: between 30% and 55% by weight, preferably from 34% and 50%, LINEAR STRUCTURES uncoupled; Between 25% and 40% by weight, preferably between 30% and 35% BY WEIGHT OF LINEAR COUPLED STRUCTURES; Between 20% and 40% by weight, preferably between 24% and 35% of its weight, branched structures. Also it disclosed the preparation of said composition and their use in formulating adhesive tapes and labels.