| 摘要 |
PROBLEM TO BE SOLVED: To improve appearance, strength (toughness) and hardness by using one obtained by adding one or more of silica, glass powder as filler in aluminum hydroxide to increase the product strength without deteriorating cutting machinability and to control transparent feeling without using a coloring agent. SOLUTION: As the filler in a composition of an artificial marble, at least one or more of silica and glass powder are used in addition to aluminum hydroxide. The artificial marble is obtained by blending at least one of the silica and the glass powder by 5-50 pts.wt. per aluminum hydroxide to have a ratio designed to attain the desired product strength and the transparent feeling with a resin such as a vinyl ester resin. Further, a curing agent and various additives are blended. The composition is defoamed in vacuum, poured into a metallic mold and heated at about 50-110 deg.C for about 30-120 min to perform the copolymerization reaction of the vinyl ester resin in the composition with a crosslinking agent to be cured and formed. |
