| 摘要 |
As the main element, terephthalic acid, ethyleneglycol, zinc oxide or barium sulfate and a dispersant, 1, 4-cyclohexandimethanol, or the like are used. And the additives are used such as a catalyst to promote the reaction and a colorizing agent to improve after process, a luster adjuster, a heat retainer, etc. wherein a ceramic is produced by zinc oxide(5,6) containing a high self specific gravity, or a ceramic 3-10wt% consisting of the particles under 1.0 micrometer size like a barium sulfate(4,4), terephthalic acid and a dispersant 0.01-1.05% mixed with ethyleneglycol of the suitable amount.
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