Improved adhesive formulations from novel radial (S-I/B)x polymers

The invention relates to an adhesive composition comprising (i) one or more styrenic block copolymer compositions, (ii) a tackifier resin, and (iii) one or more plasticizers, wherein said styrenic block copolymer composition comprises: (a) a tetra-branched block copolymer (IV) represented by the general formula (A-B)4X; (b) a tri-branched block copolymer (III) represented by the general formula (A-B)3X; (c) a di-branched block copolymer (II) represented by the general formula (A-B)2X; and (d) a linear diblock copolymer (I) represented by the general formula A-B; where: (i) A represents a polymer block of a mono alkenyl arene; (ii) B represents a polymer block of a mixture of isoprene and 1,3-butadiene in a weight ratio of isoprene to butadiene from about 70:30 to about 40:60; (iii) X represents the residue of a multi-functional coupling agent; (iv) the weight percent of A blocks is from about 14% to about 22%; (v) the relative amounts of copolymers IV, III, II, and I are from 0 to 20 weight percent IV, from 50 to 80 weight percent III, from 0 to 20 weight percent II and from 20 to 50 weight percent I, where the total of I, II, III and IV equals 100 weight percent; and (vi) the melt flow rate of the polymer composition is at least 2.0 g/10 minutes at 200 DEG C/5 kg as measured by ASTM D1238 (D condition).