| 发明名称 |
INCREASING THE MOLECULAR WEIGHT OF POLYCONDENSATES |
| 摘要 |
The invention relates to a process for increasing the molecular weight of polycondensates, which comprises heating a polycondensate in the temperature range below the melting point and above the glass transition temperature in the solid phase of the polymer with addition of at least one sterically hindered hydroxyphenylalkylphosphonic ester or monoester.
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| 申请公布号 |
CA2200339(A1) |
申请公布日期 |
1996.04.25 |
| 申请号 |
CA19952200339 |
申请日期 |
1995.10.05 |
| 申请人 |
CIBA SPECIALTY CHEMICALS HOLDING INC. |
发明人 |
PFAENDNER, RUDOLF;HOFFMANN, KURT;HERBST, HEINZ |
| 分类号 |
C08J11/04;C08G59/18;C08G63/80;C08G63/91;C08G64/20;C08G64/40;C08G64/42;C08G69/06;C08G69/48;C08G85/00;C08K5/5313;C08K5/5333;(IPC1-7):C08K5/533;C08L69/00;C08L77/00;C08L67/02 |
主分类号 |
C08J11/04 |
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