| 摘要 |
PURPOSE:A tear sheet is obtained by adding a specific amount of an inorganic filler to an olefinic polymer so that the resultant composition has a specific friction coefficient, thus showing high heat resistance, water resistance and enabling repeated use, because it is washable and sanitary and has dusting effect. CONSTITUTION:An olefinic polymer, preferably a propylene polymer with MFI of 0.1-10g/10min, is combined with 5-40wt% of an inorganic filler, preferably a talc of 2-10mu particle sizes, made into sheets. Then, the sheets are embossed on its at least one surface partially or wholly, sand-blasted to make the surfaces coarse, resulting in differing the friction coefficient of one surface from the other. The thickness of the tear sheets are selected in the range from 0.3-15mm., preferably from 0.5-10mm..
|
