发明名称 |
MOLECULAR WEIGHT INCREASE AND MODIFICATION OF POLYCONDENSATES |
摘要 |
This invention relates to a process for increasing the molecular weight and/or for the modification of polycondensates during the processing in the melt, which comprises adding to the polycondensate a blend comprising a) at least one polyfunctional anhydride (polyanhydride); b) at least one polyfunctional compound, the functional groups of which can react with the anhydride groups of component a); and c) at least one phosphonate. This invention also relates to the use of an additive blend for increasing the molecular weight and for the modification of polycondensates during the processing in the melt.
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申请公布号 |
CA2308888(A1) |
申请公布日期 |
2000.11.21 |
申请号 |
CA20002308888 |
申请日期 |
2000.05.19 |
申请人 |
CIBA SPECIALTY CHEMICALS HOLDING INC. |
发明人 |
HERBST, HEINZ;PFAENDNER, RUDOLF;SIMON, DIRK |
分类号 |
C08J5/00;C08G63/91;C08G64/42;C08G69/48;C08J9/04;C08K5/5317;(IPC1-7):C08G63/91;C08L69/00;C08L77/00;C08L67/03;C08K5/531 |
主分类号 |
C08J5/00 |
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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