| 摘要 |
PROBLEM TO BE SOLVED: To obtain an artificial marble having enhanced light resistance and preventing discoloration due to silver by incorporating a silver-contg. inorg. antibacterial agent obtd. by coordinate-bonding silver to an inorg. support into a resin cured body so as to suppress the release of silver from the inorganic support. SOLUTION: About 180-300 pts.wt. inorg. filler is added to 100 pts.wt. resin so as to enhance the heat resistance of the resin, a curing agent and a silver- contg. inorg. antibacterial agent as well as additives such as a viscosity reducing agent, glass fibers and a colorant are further added and they are pressed and heated at about 60-100 deg.C to obtain the objective artificial marble contg. the silver-contg. antibacterial agent in a resin cured body. The antibacterial agent is prepd. by chemically and tightly bonding silver to an inorg. support, preferably calcium phosphate by coordinate bond. Since the silver is hardly released from the inorg. support, it is not discharged into the resin cured body by exchange for other metal in the resin and the additives. When the antibacterial agent is incorporated into the artificial marble by about 0.1-10 wt.%, the antibacterial property of the artificial marble can be effectively enhanced.
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