| 摘要 |
PURPOSE:To obtain the titled sheet having low elongation stress and excellent moisture permeability, etc., free from uneven strength and elongation, and forming porous texture at a low draw ratio, by melt-forming a composition containing a polyolefin polymer, a filler and a specific plasticizer and drawing the obtained sheet. CONSTITUTION:The objective sheet suitable for clothes, packaging, separator for battery, filtration material, medical material, etc., is produced by melt- forming a composition containing (A) a polyolefin polymer (e.g. PE or PP), (B) a filler (e.g. calcium carbonate, talc, clay or silica) and (C) an esterified dipentaerythritol as a plasticizer and drawing the obtained sheet. |
