| 摘要 |
<p>A moulding composition comprises 2.0 to 3.5 parts by weight plaster (e.g. gypsum), 0.35 to 5.0 parts by weight cellulosic material and 1.0 to 5.0 parts by weight resin. The cellulosic material preferably comprises wood flour. The resin may be polyvinyl acetate, polyvinyl chloride, urea-formaldehyde, or nitrile rubber latex. The composition enables strong, accurately mouldable articles of many different types to be made.</p> |
