| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a manufacturing method of a polypropylene-based resin optical film which is transparent, precise in thickness and economical. <P>SOLUTION: The production process of polypropylene-based resin optical film comprises the shaping step to shape a molten polypropylene-based resin into a film 7 and the cooling step to cool and solidify the film 7 by adhering it to a rotary cooling body 4, wherein the film 7 is electrostatically adhered to the rotary cooling body 4 in the cooling step. <P>COPYRIGHT: (C)2010,JPO&INPIT |
