2,6-萘二甲酸中国专利技术分析

Analysis of Chinese Patents of 2,6-naphthalenedicarboxylic Acid

文章检索了2,6-萘二甲酸领域中国专利申请情况,并对相关专利的申请趋势、主要专利商、技术布局等情况进行了分析,目前主要专利商有中国石化、韩国株式会社晓星、北京石油化工学院等;专利申请主要涉及以2,6-二烷基萘、1,8-萘二甲酸盐、含萘聚酯、2-烷基-6-酰基萘、β-甲基萘等为原料制备2,6-萘二甲酸的合成技术以及结晶提纯、加氢纯化、酯化水解、催化提纯等提纯技术。

With the search of Chinese patents of 2,6-naphthalenedicarboxylic acid(2,6-NDA),this paper analyzed the patents application trend,the major patent owners,technology structure,etc.The major patent owners include Sinopec,HYOSUNG Corporation,Beijing Institute of Petrochemical Technology,etc.The patent technologies mainly cover the synthesis technologies of 2,6-naphthalene dicarboxylic acid from 2,6-dialkyl naphthalene,1,8-naphthalene dicarboxylic acid,naphthalene containing polyester,2-alkyl-6-acylnaphthalene,β-methylnaphthalene and other raw materials,as well as the purification technologies of crystallization purification,hydrogenation purification,esterification hydrolysis,catalytic purification and so on.