| 摘要 |
The composite plastic material for production of lightweight filler contains 43 to 62 % by weight of cellulosic paper sludge or wet filament paper, 3 to 30 % by weight of water, up to 4 % by weight of bentonite, up to 1 % by weight calcium stearate or other salt of fatty acid and up to 0.5 % by weight of surface active substances. |
