| 发明名称 |
INCREASING THE MOLECULAR WEIGHT OF POLYESTERS AND PREMIX USEFUL FOR THIS PROCESS |
| 摘要 |
<p>An increase in the molecular weight of polyester and recycled polyester can be achieved by blending said polyester with a difunctional epoxy resin and a sterically hindered hydroxyphenylalkylphosphonic acid ester or half-ester and heating the blend to above the melting point (glass transition temperature) of the polyester.</p> |
| 申请公布号 |
EP0695318(B1) |
申请公布日期 |
1998.12.16 |
| 申请号 |
EP19940914357 |
申请日期 |
1994.04.11 |
| 申请人 |
CIBA SPECIALTY CHEMICALS HOLDING INC. |
发明人 |
PFAENDNER, RUDOLF;HOFFMANN, KURT;HERBST, HEINZ |
| 分类号 |
C08G63/91;C08J11/04;C08K5/5333;C08L63/00;C08L67/00;C08L67/02;(IPC1-7):C08G63/91;C08K5/531 |
主分类号 |
C08G63/91 |
| 代理机构 |
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代理人 |
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| 主权项 |
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