Patent ID: 7202297
Filing Date: 2007-04-10
Classification: C08F,C08L,C09J

Abstract:
1. An adhesive composition consisting essentially of (i) one or more styrenic block copolymers, (ii) a mixed aliphatic/aromatic hydrocarbon tackifier resin, and (iii) one or more plasticizers, wherein said styrenic block copolymer is of the general formulae or wherein each A independently is a polymer block of an aromatic vinyl compound, and C is a mixed polymer block (B/I) of butadiene (B) and isoprene (I) in a weight ratio B:I in the range of 30:70 to 70:30, and said polymer block C has a glass transition temperature (Tg) of at most −50° C. (determined according to ASTM E-1356-98), n is an integer equal to or greater than 2, and X is the residue of a coupling agent,and wherein the tackifier resin has an aromaticity (in relative percentage of aromatic protons as determined by H-NMR) of 4.2%.