| abstract |
(57) [Summary] (Revised) [Solution] A sealant material for polypropylene is a high-pressure low-density polyethylene (A) having a density of 910 to 930 kg / m 3 and an MFR of 0.5 to 20 g / 10 min. 890kg / m but 860kg / m 3 or more An ethylene / α-olefin copolymer (B) having an MFR of 0.5 to 40 g / 10 min and an Mw / Mn of 1.5 to 3, and / or Alternatively, it comprises a composition containing a linear low-density polyethylene (C) having a density of 890 to 940 kg / m 3 and an MFR of 0.2 to 30 g / 10 minutes. For a total amount of 100% by weight of these three components, The amount of component (A) is 10 to 85% by weight, the amount of component (B) is 50% by weight or less, and the total amount of component (B) and component (C) is 15 to 90% by weight. %. [Effect] Neck-in during extrusion lamination molding can be reduced, bubble stability during inflation molding is excellent, and seal strength that allows easy opening of hermetically sealed containers formed of polypropylene as an adherend. Can be prepared. |