发明名称 |
Preparation of aromatic polyester with improved stability by addition of phosphite during preparation. |
摘要 |
<p>A process for preparing an aromatic polyester derived from aromatic dicarboxylic acid and bisphenol includes adding a phosphite stabilizer to reduce coloration and reduce loss of intrinsic viscosity of the aromatic polyester to a molten mixture of the monomeric reactants or prepolymer. </p> |
申请公布号 |
EP0234914(A2) |
申请公布日期 |
1987.09.02 |
申请号 |
EP19870301584 |
申请日期 |
1987.02.24 |
申请人 |
CELANESE CORPORATION |
发明人 |
ROSENFELD, JEROLD C.;PAWLAK, JOSEPH A. |
分类号 |
C08L67/00;C08G63/18;C08G63/19;C08G63/692;C08G63/78;C08G63/87;C08K5/52;C08K5/526;(IPC1-7):C08K5/52;C08G63/38;C08L67/02 |
主分类号 |
C08L67/00 |
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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