Carbon monoxide and nitrous acid ester are synthesized through coupling reaction into diester carbonate in the presence of catalyst and at relatively low pressure and temperature.

一种碳酸二酯的合成方法，通过一氧化碳和亚硝酸酯在催化剂存在下，用较低的压力和较低的温度偶联合成碳酸二酯。

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Diphenyl carbonate shows a typical vinyl ester effect.

碳酸二苯酯表现典型的乙烯的酯类的效应。

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The effects of the contents of activated light calcium carbonate, PE wax and acrylic ester(ACR) on the surface gloss of plastics profile shapes were studied.

研究了活性轻质碳酸钙（活性钙）、聚乙烯蜡（PE蜡）、丙烯酸酯（ACR）用量对型材表面光亮度的影响。结果表明活性钙用量越多，型材表面光亮度越差；

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