发明名称 |
Preparation method of polyester resin |
摘要 |
The present invention provides a polyester resin including: moieties of dicarboxylic acid components including terephthalic acid; and moieties of diol components including isosorbide, a cyclohexanedimethanol, and the balance of other diol compounds. The polyester resin contains a zinc-based catalyst and a phosphorus-based stabilizer. The present invention also provides a method for preparing the polyester resin. The method includes: esterifying diol components including isosorbide, a cyclohexanedimethanol, and the balance of other diol compounds, with dicarboxylic acid components including terephthalic acid in the presence of an esterification reaction catalyst including a zinc compound; adding a phosphorus-based stabilizer to the esterification reaction mixture at the time when the degree of esterification reaches at least 80%; and subjecting the esterification reaction product to polycondensation. |
申请公布号 |
US9284405(B2) |
申请公布日期 |
2016.03.15 |
申请号 |
US201314403639 |
申请日期 |
2013.05.21 |
申请人 |
SK CHEMICALS CO., LTD. |
发明人 |
Lee Yoo Jin;Kim Ji-Hyun;Kim Jong Ryang |
分类号 |
C08G63/00;C08G63/83;C08G63/183;C08G63/672;C08G63/91;C08G63/199;C08G63/86;C08G67/00 |
主分类号 |
C08G63/00 |
代理机构 |
Sheridan Ross P.C. |
代理人 |
Sheridan Ross P.C. |
主权项 |
1. A polyester resin comprising:
moieties of dicarboxylic acid components comprising terephthalic acid; and moieties of diol components comprising 5 to 60 mole % of isosorbide, 10 to 80 mole % of a cyclohexanedimethanol, and the balance of other diol compounds, wherein the polyester resin contains 1 to 100 ppm of a zinc-based catalyst, in terms of the central metal atom content, based on the total amount of the resin, and 10 ppm to 300 ppm of a phosphorus-based stabilizer, and the polyester resin has a Color b value of 3 or lower. |
地址 |
Gyeonggi-Do KR |