| 摘要 |
PURPOSE:To obtain a polyester compsn. useful to produce a biaxially oriented polyester film having satisfactory slipperiness and shaving resistance. CONSTITUTION:A polyester is compounded with 0.005-2wt.% fine particles of a silicone resin contg. at least 80wt.% polymethylsilsesquioxane having cross- links each expressed by CH3.SiO3/2 and having a breaking strength of 10-50kgf/ mm<2>. |
