| abstract |
Disclosed are hot-melt adhesive compositions suitable for the manufacture of soft goods. They have a melt viscosity of 60,000 mPa.s or less at a temperature of 120 DEG C. and include: (a) 50 to 150 parts by weight of a styrenic block copolymer or mixtures and/or modified and/or hydrogenated derivatives thereof; (b) 20 to 450 parts by weight of a tackifying resin which, when incorporated into a reference composition, leads to the following properties: a tan delta value of 3.5 or less, wherein tan delta is defined as the ratio between the loss modulus and the storage modulus of said composition and an elastic retention on spandex fibers (300%) or natural latex rubber (200%) after 4 h at 40 DEG C. of 70% or more; and a crossover temperature of 95 DEG C. or less. Further disclosed are novel partially hydrogenated hydrocarbon resins which are useful as tackifying resins and have the following properties: (a) a R&B softening point (R&B) of 50 DEG C. to 150 DEG C.; (b) a mixed methylcyclohexane aniline cloudpoint (MMAP) of 10 DEG C. to 75 DEG C.; (c) a Di-Acetone Alcohol cloudpoint (DACP) of 35 DEG C. or less; (d) a molecular weight (Mz) of 10,000 Dalton or less; and (e) a UV absorbance at 268 nm ranging from 2.0 to 5.0. |