| 摘要 |
PURPOSE:To obtain a film or sheet which is excellent in moldability, expansibility and such natures as flexibility, etc. by such an arrangement wherein a compound composed of a mixture of linear low density polyethylene resin and linear high density of polyethylene resin added with a filler material and hydrocarbon polymer is melted and formed into a film, and after that the film is elongated. CONSTITUTION:A compound composed of a mixture of linear low density polyethylene resin (preferably, such a resin of which density is 0.910-0.940g/cm<2>, melt index is 0.1-5g/10min.) and high density polyethylene resin (preferably, such a resin of which density is 0.945-0.965g/cm<2>, melt index is 0.01-10g/min.) added with a filler material and liquid or waxlike hydrocarbon polymer (e.g.; polybutadiene, liquid polybutene, etc.) is melted and formed into a film or sheet and the film or sheet thus obtained is elongated and processed to manufacture a porous film or sheet. |
