| 摘要 |
PURPOSE:To provide a core sheet material comprising PVC, PMMA MAS resin, EVA, a magnetic material, etc., excellent in impact resistance, processability, dispersibility and magnetic characteristics, and suitable for magnetic cards such as credit cards, etc. CONSTITUTION:The core sheet material 2 comprises (A)100 pts.wt. of PVC, (B) PMMA preferably in an amount of 2-5 pts.wt., (C) MAS resin or MBS resin preferably in an amount of 5-15 pts.wt., (D) EVA preferably in an amount of 5-10 pts.wt., (E) a magnetic material such as ferrite, and further (F) a silane coupling agent preferably in an amount of >=0.5 pt.wt. |
