| 摘要 |
Provided is a polypropylene-based adhesive having an MFR of 2.7 g/10 min or higher, as measured at 230 ° C. under a load of 2.16 kg, comprising a composition which contains 5-95 parts by weight of (A) an isotactic polypropylene, 95-5 parts by weight of (B) a propylene/ethylene random copolymer, and 0-40 parts by weight of (C) an ethylene/propylene random copolymer, wherein 100 parts by weight of the composition is graft modified with 0.001-5 parts by weight of an unsaturated carboxylic acid and/or a derivative thereof, and wherein (B) is characterized by the following (i) to (iii): (i) the propylene/ethylene random copolymer (B) contains 60-90 mol % units derived from propylene and 10-40 mol % units derived from ethylene; (ii) the melting point (Tm) is in the range of 40-120 ° C.; and (iii) the molecular weight distribution (Mw/Mn) is in the range of 1.0-3.0.
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