公开(公告)号：US06559272B1

公开(公告)日：2003-05-06

申请号：US10057386

申请日：2002-01-24

申请人： Jae-Young Jeon ,  Yoon-Hee Hong ,  Sung-Gi Kim

发明人： Jae-Young Jeon ,  Yoon-Hee Hong ,  Sung-Gi Kim

IPC分类号： C08G6378

CPC分类号： C08G63/85 ,  C08G63/181 ,  C08K5/49

摘要： Disclosed is a method for preparing polyester resins copolymerized with glycol for modification such as 1,4-cyclohexanedimethanol, in which the content of said glycol ingredient for modification ranges from 20 to 80 mol % of the total glycol content. Dicarboxylic acid such as terephthalic acid is esterified with ethylene glycol and said glycol for modification. The esterification product is subjected to polycondensation in the presence of a titanium dioxide/silicon dioxide coprecipitate catalyst, said catalyst being in the form of 4% or less strength by weight suspension in glycol. The copolyester prepared as above shows excellent transparency and color properties in addition to being produced at high efficiency.

摘要翻译： 公开了一种用于制备与乙二醇共聚的聚酯树脂的方法，例如1,4-环己烷二甲醇，其中所述改性二醇成分的含量为总二醇含量的20至80摩尔％。 二羧酸如对苯二甲酸用乙二醇酯化，所述二醇用于改性。 酯化产物在二氧化钛/二氧化硅共沉淀催化剂存在下进行缩聚，所述催化剂为乙二醇悬浮液中4重量％以下的重量。 如上制备的共聚聚酯除了高效生产之外还显示出优异的透明性和着色性。

公开(公告)号：US06342579B2

公开(公告)日：2002-01-29

申请号：US09753923

申请日：2001-01-02

申请人： Jae-Young Jeon ,  Yoon-Hee Hong

发明人： Jae-Young Jeon ,  Yoon-Hee Hong

IPC分类号： C08G6378

CPC分类号： C08G63/85 ,  C08G63/199 ,  C08G63/87 ,  C08K5/5333 ,  C08L67/02

摘要： Disclosed is a method for preparing polyester resins copolymerized with 1,4-cyclohexanedimethanol. In the preparation method, ethylene glycol and 1,4-cyclohexanedimethanol are fed with the molar ratio of the whole glycol component to terephthalic acid ranging from 1.3 to 3.0, and then esterified. Then, the esterified reaction product is polycondensed in the presence of titanium-based compound as a polycondensation catalyst and carboxy phosphonic acid typed compound represented by formula I below as a stabilizer, to give the polyester resins of the present invention having excellent clarity and good color: wherein R1, R2 and R3, which are the same or different, each being selected from the group consisting of hydrogen, alkyl groups having 1 to 10 carbon atoms, cycloalkyl groups having 1 to 10 carbon atoms and aryl groups having 6 to 10 carbon atoms; and R is selected from the group consisting of alkylene groups having 1 to 10 carbon atoms, cycloalkylene groups having 1 to 10 carbon atoms, and arylene groups having 6 to 10 carbon atoms.

摘要翻译： 公开了一种制备与1,4-环己烷二甲醇共聚的聚酯树脂的方法。 在制备方法中，以1.3至3.0的全部二醇组分与对苯二甲酸的摩尔比进料乙二醇和1,4-环己烷二甲醇，然后酯化。 然后，酯化反应产物在作为缩聚催化剂的钛基化合物和由下式I表示的羧基膦酸类化合物作为稳定剂存在下缩聚，得到本发明的具有优异透明度和良好颜色的本发明的聚酯树脂 ：其中R 1，R 2和R 3相同或不同，各自选自氢，具有1至10个碳原子的烷基，具有1至10个碳原子的环烷基和具有6至10个碳原子的芳基 原子 R选自碳原子数1〜10的亚烷基，碳原子数1〜10的亚环烷基，碳原子数6〜10的亚芳基。