发明名称 |
Process for continuous preparation of high molecular weight polyesters by esterification of dicarboxylic acids and/or transesterification of dicarboxylic acids with diols and/or mixtures thereof and an apparatus therefor |
摘要 |
The present invention relates to a method for the continuous production of high-molecular polyesters by esterification of dicarboxylic acids and/or transesterification of dicarboxylic acid esters with diols and/or mixtures thereof in the presence of catalysts with formation of a prepolymer in a tower reactor and polycondensation thereof to form a high-molecular polyester in a polycondensation reactor, a prepolymer with >40 to 70 repeat units (DP) being produced in the tower reactor and this prepolymer being polycondensed in only one further reactor to form a polyester with >150 to 205 DP. |
申请公布号 |
US8110149(B2) |
申请公布日期 |
2012.02.07 |
申请号 |
US20070302254 |
申请日期 |
2007.05.31 |
申请人 |
SCHULZ VAN ENDERT EIKE;UHDE INVENTA-FISCHER GMBH |
发明人 |
SCHULZ VAN ENDERT EIKE |
分类号 |
B01J19/18;B01J8/00;B01J8/02;B01J8/04;B01J19/00;B01J35/02;C08F2/00;C08G63/00 |
主分类号 |
B01J19/18 |
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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