| 摘要 |
A method of manufacturing a film product comprising a thermoplastic polymeric material and an inorganic particulate material involves forming a molten, homogeneously blended composition by mixing and heating, to a temperature ranging from 160 DEG C to 320 DEG C, two components together. The first component is a thermoplastic film-forming polymeric material and the second comprises granules or pellets of a filler-in-binder concentrate comprising inorganic particulate material particles bonded together by a binder and forming 80 % by weight of the concentrate. The molten composition is formed directly into an end film product by a process, such as shaping and stretching. The weight ratio of the first component to the second component ranges from 15:85 to 85:15. |
