| 摘要 |
<p>Stone is formed from 5 to 60 % by weight of polymerised, low-viscosity, transparent or low-colour-resin, 20 to 90 % by weight of spherical alumina trihidrate Al2O3.3H2O containing less regular particles containing, advantageously 0 to 100 % by weight of a transparent or translucent substitu te of alumina trihydrate, and/or with 0 to 20 % or pre-prepared particulate, filled resin of a chosen colour, and/or mineral particles and less than 2 % by weight of luminophor. These individual components are mixed intensely whilst extracting included gaseous parts. Extraction is carried out whilst mixing, and/or after mixing, and/or before mixing. The mixture is initiated by introducing a starter and intensely mixing it into the mixture. The mixture is poured into a mould or onto a moving endless belt. The cured synthetic stone is removed from the mould or the hardened composite is taken off the the bel t. Synthetic stone can be used in products as a light carrier.</p> |
