| 摘要 |
PURPOSE:To provide a cap liner which is capable of preventing occurrence of wax floating caused by flowing of wax out of liner materials. CONSTITUTION:A composition for cap liner is made up by including hydrogenated styrene-butadiene block copolymer in 10-60wt.%, fluid paraffin in 5-35wt.%, polypropylene in 5-50wt.%, and polyethylene in 5-45wt.%. Thereby, the composition is such that prevents occurrence of wax floating, is capable of keeping excellent torque value for opening of a plug while being preserved at high temperature, and suitably usable as a liner material for synthetic resin cap. |
