酯交换法制备碳酸二苯酯中国专利分析综述

The Analysis of Chinese Patents in the Preparation of DPC by Transesterification Methods

文章针对酯交换法制备碳酸二苯酯(DPC)领域的中国专利申请进行了分析,重点针对该领域中国专利申请所涉及的技术分支进行详细分析。分析表明,目前该领域中国专利申请主要集中在通过碳酸二甲酯和苯酚反应制备DPC技术方面,以及通过其它碳酸二烷基酯与芳香族羟基化合物制备DPC。

Based on the Chinese patents in the preparation of DPC by transesterification methods, we analyzed the technology branches of these patents. According to the analysis, these Chinese patents mainly focused on the preparation of DPC by DMC and phenol. In the next place, they also paid close attention to the preparation by other carbonate diary esters and aromatic hydroxyl compounds.