| abstract |
An object of the present invention is to provide a polypropylene adhesive having excellent initial adhesiveness and excellent adhesiveness after heat history, and to provide a laminate having excellent adhesiveness and heat resistance. In the present invention, 5 to 95 parts by weight of isotactic polypropylene (A), 95 to 5 parts by weight of propylene / ethylene random copolymer (B) as defined by the following (i) to (iii), and ethylene / propylene random With respect to 100 weight of the composition containing 0-40 weight part of copolymers (C), 0.001-5 weight part of grafts of unsaturated carboxylic acid and / or its derivative (s) are added, and MFR under 230 degreeC and a 2.16 kg load is 2.7g / 10min. Polypropylene adhesives as described above; (i) A propylene-ethylene random copolymer (B) containing 60 to 90 mol% of units obtained from propylene and 10 to 40 mol% of units obtained from ethylene, and (ii) Melting point measured by differential scanning calorimeter (Tm) is in the range of 40 to 120 ° C, and (i) the molecular weight distribution (Mw / Mn) determined by gel permeation chromatography (GPC) is in the range of 1.0 to 3.0. |