THERMOPLASTIC ELASTOMER COMPOSITION AND HOT-MELT SEALANT COMPRISING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a thermoplastic elastomer composition which maintains good processability and flexibility and has remarkably improved heat resistance, and to provide a hot-melt sealant comprising the same.;SOLUTION: This thermoplastic elastomer composition comprises 100 pts.mass of a hydrogenated block copolymer (I) produced by hydrogenating a block copolymer comprising at least a polymer block (A) consisting mainly of aromatic vinyl compound units and a polymer block (B) consisting mainly of conjugated diene units, and having a weight-average mol.wt. of 370,000 to 500,000 and a heat of crystal fusion of 5 to 25 mJ/mg; 100 to 900 pts.mass of a rubber softener (II); and 1 to 50 pts.mass of a polyolefin resin (III). The hot-melt sealant comprises the same.;COPYRIGHT: (C)2011,JPO&INPIT