| 摘要 |
PURPOSE:To obtain a biaxially oriented polyester film having flatness, slipperiness, abrasion resistance and strength. CONSTITUTION:This biaxially oriented polyester film contains 0.01-1wt.% of silica particles having an average particle diameter of 0.05-0.6mum and a sphericity ratio of 1.0-1.2 and 0.005-1wt.% of crosslinked polymer particles having an average particle diameter of 0.1-2mum, a sphericity ratio of 1.0-1.2 and a deformation degree by biaxial drawing of 1.0-1.5. |
