发明名称 |
CATALYST SYSTEMS FOR POLYCONDENSATION REACTIONS |
摘要 |
The invention pertains to new catalyst systems for polycondensation reaction s, for example for producing polyethylene terephthalate. In accordance with the invention, complex compounds with hydrotalcite-analogous structures of gener al formula [M(II)1-xM(III)x(OH)2]x+(An-x/n).mH2O are used, wherein M(II) represents divalent metals, preferably Mg or Zn or NI or Cu or Fe(II) or Co, and M(III) represents trivalent metals, for example Al or Fe(III), and A represents anions, preferably carbonates or borates. These catalysts can be calcinated and can be used in combination with phosphorus compounds that contain at least one hydrolyzable phosphorus-oxygen bond. |
申请公布号 |
CA2395051(A1) |
申请公布日期 |
2001.06.14 |
申请号 |
CA20002395051 |
申请日期 |
2000.12.07 |
申请人 |
DOW GLOBAL TECHNOLOGIES INC. |
发明人 |
VOERCKEL, VOLKMAR;WIEGNER, JENS-PETER;FEIX, GUNTER;SELA, MARION;ECKERT, ROLF;MUNJAL, SARAT |
分类号 |
B01J21/00;B01J21/10;B01J23/00;B01J23/06;C08G63/82 |
主分类号 |
B01J21/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|