| 摘要 |
<p>(1) A composition for building materials which comprises 100 parts by weight of a base selected from the group consisting of calcium sulfate, calcium carbonate, calcium hydroxide, and an emulsion of an organic synthetic resin and 50-3,000 parts by weight of an inorganic filler having a true specific gravity of 3.5-6.0 selected from the group consisting of barium chloride, zinc oxide, aluminum oxide, titanium oxide, barium oxide, strontium carbonate, barium carbonate, and barium sulfate. Also provided is (2) a plasterboard having a plaster core produced from a slurry obtained by mixing 100 parts by weight of calcium sulfate, 50-200 parts by weight of the inorganic filler, and water.</p> |
