发明名称 |
METHOD FOR PRODUCING POLYCYCLOHEXYLENEDIMETHYLENE TEREPHTHALATE RESIN HAVING EXCELLENT COLORING PROPERTY AND POLYCYCLOHEXYLENEDIMETHYLENE TEREPHTHALATE RESIN PRODUCED THEREBY |
摘要 |
A preparation method of a polycyclohexylenedimethylene terephthalate resin according to the present invention includes the steps of injecting a titanium compound and a germanium compound as catalysts to a mixture of a diol compound and dicarboxylic acid under stirring and performing esterification reaction and polycondensation reaction, in which the titanium compound is injected in a titanium atom content of 20 ppm or less, based on the weight of the final polycyclohexylenedimethylene terephthalate resin. The preparation method of the polycyclohexylenedimethylene terephthalate resin according to the present invention can be used to prepare a polycyclohexylenedimethylene terephthalate resin that has excellent degree of polymerization, color and light reflectance and has remarkably improved heat stability, and it is suitable to use the polycyclohexylenedimethylene terephthalate resin according to the present invention as an LED housing material. |
申请公布号 |
EP2899220(A4) |
申请公布日期 |
2016.06.01 |
申请号 |
EP20130838860 |
申请日期 |
2013.09.24 |
申请人 |
SK CHEMICALS CO., LTD. |
发明人 |
MOON, JUNG-ME;KIM, TAE-YOUNG;KIM, JONG-RYANG |
分类号 |
C08G63/183;C08G63/199;C08G63/85;C08L67/03 |
主分类号 |
C08G63/183 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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