| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat-melting composition excellent in continuous production for long time, high in sealing strength, without generation of slip stick during opening regardless of maintaining seal even with dropping, low in opening strength and easy to open.SOLUTION: There is provided a heat-melting composition containing (A) an olefin polymer having melt flow rate at 230°C and 21.18 N in a range of 1 to 50 g/10 min.:5 to 45 mass%, (B) wax having the melting point of 70°C to 150°C and needle approach degree with load of 100 g at 25°C for 5 sec. of 0.2 to 9:5 to 30 mass% and (C) wax having the melting point of 40°C or more and less than 70°C and Saybolt universal viscosity at 100°C of 0.5 to 8 sec.:35 to 75 mass%, where the total of the (A) to (C) is 100 mass%, where difference of the melting point of the wax (B) and the melting point of the wax (C) is 20°C or more and the total of the wax (B) and the wax (C) is 55 to 95 mass%.SELECTED DRAWING: None |
