| 摘要 |
A stretchable, fastening tape of the invention comprises a middle portion made of an elastic material and two end portions made of a non-elastic material and integrally bonded through respective boundary regions to said middle portion, characterized in that said elastic material is constituted of a composition comprising (a) and (b), or (a), (b) and (c) as mentioned below, while said non-elastic material is constituted of (d) as mentioned below: (a) 100 parts by weight of a hydrogenated block copolymer represented by a general formula, A-(B-A)n, wherein A is a polymer block of a monovinyl-substituted aromatic hydrocarbon, B is an elastomeric polymer block of a conjugated diene, the weight ratio of A to B is 20/80 to 40/60, and n is an integer of 1 to 4; (b) 10 to 80 parts by weight of a resin having a melting or softening point of 80 DEG C or higher and an average molecular weight of 400 to 2,000; (c) 0 to 50 parts by weight of a thermoplastic olefin resin; and (d) a resin selected from the group consisting of polyethylene, polypropylene, poly(ethylene-propylene), poly(ethylene-vinylacetate), and poly(styrene-butadiene), used alone or as a composite resin thereof. / |
