| 摘要 |
PURPOSE:To provide a polyester compsn. having slipperiness, transparency and evenness, by blending inert particles and a higher fatty acid amide compd. with polyethylene terephthalate. CONSTITUTION:0.001-1.0pt.wt. fine inert particles having an average particle size of 0.1-3mu and 0.005-2.0pts.wt. C18-C33 higher fatty acid amide compd. as a main component are blended with 100pts.wt. polyester mainly composed of an ethylene terephthalate repeating unit. The preferred inert particle content is 0.005-0.5pts.wt. to provide a film having well-balanced properties between evenness and transparency. Examples of the inert particles are calcium carbonate, aluminum silicate and barium sulfate. Examples of the higher fatty acid amides are stearamide and oleamide.
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