| 摘要 |
PROBLEM TO BE SOLVED: To provide a compsn. for a cap liner material which has high resistances to heat and impact, is excellent in sealing properties, and is safe in terms of food hygiene and to provide a cap prepd. from the same. SOLUTION: This compsn. comprises 5-70 wt.% polypropylene resin, 5-60 wt.% hydrogenated styrene-isoprene block copolymer rubber having a styrene content of 10-40 wt.% and a melt flow rate (JIS K7210-76, 230 deg.C, 2.16 kg-load) of 20 g/10 min or lower, and 1-60 wt.% liq. paraffin having a viscosity (JIS K2283-83, 40 deg.C) of 30-550 mm<2> /s. |
