Patent ID: 6887540

Claim:
A resin composition (EE) for a sealant, comprising a polyethylene resin (CC) or a polypropylene resin (DD), wherein: the polyethylene resin (CC) comprises 30 to 90% by weight of an ethylene polymer (A3) having a melt flow rate (ASTM D 1238, 190Â° C., load of 2.16 kg) of 0.1 to 50 g/10 min and a density (ASTM D 1505) of 0.850 to 0.960 g/cm 3 , 5 to 50% by weight of a butene polymer (C) having a melt flow rate (ASTM D 1238, 190Â° C., load of 2.16 kg) of 0.1 to 25 g/10 min and a density (ASTM D 1505) of 0.880 to 0.925 g/cm 3 and 2 to 40% by weight of a tackifier (B) ((A3)+(B)+(C)=100% by weight), the polypropylene resin (DD) comprises 30 to 90% by weight of a propylene polymer (A4), 5 to 50% by weight of an ethylene polymer (A5) having a melt flow rate (ASTM D 1238, 190Â° C., load of 2.16 kg) of 0.1 to 50 g/10 min and density (ASTM D 1505) of 0.850 to 0.960 g/cm 3 and 1 to 20% by weight of a tackifier (B) ((A4)+(A5)+(B)=100% by weight), and the tackifier (B) has a glass transition temperature of 20 to 140Â° C. and a number-average molecular weight of 1200 or less.