The present invention relates to a polyester composition, comprising 0.5 to 300 ppm, as titanium atoms, of a compound oxide (A) containing titanium as an essential element and also containing a metal element selected from a group consisting of aluminum, zirconium, germanium, tin and silicon, and 0.001 to 40 wt% of particles with an average particle size of 0.01 to 10 µm, and also to a method of production thereof, and a film composed of said polyester composition.
The polyester composition of the present invention is excellent in moldability and heat resistance and solves such problems as die contamination, filtration pressure rise and yarn breaking in the production of such moldings as fibers, films and bottles. Furthermore, the polyester film of the present invention is suitable for packaging, being excellent in taste property and long-term storage quality, and can be suitably used for packaging materials, above all for being formed, especially for being laminated and formed with a substrate such as paper, nonwoven fabric or metal, to make containers, etc.
本发明涉及一种聚酯组合物,其中包含 0.5 至 300 ppm 的以
钛原子为基本元素的化合物氧化物 (A),还包含选自铝、
锆、
锗、
锡和
硅的一组
金属元素,以及 0.001 至 40 wt% 的平均粒径为 0.01 至 10 µm 的颗粒,还涉及其生产方法,以及由所述聚酯组合物构成的薄膜。
本发明的聚酯组合物具有优异的成型性和耐热性,可解决纤维、薄膜和瓶子等成型品生产中的模具污染、过滤压力上升和断纱等问题。此外,本发明的聚酯薄膜适用于包装,具有极佳的口感和长期储存质量,可适当用于包装材料,尤其是用于成型,特别是与纸张、无纺布或
金属等基材层压成型,制成容器等。