发明名称 |
Process for producing aromatic polyesters having increased degrees of polymerization |
摘要 |
A process for producing an aromatic polyester having an increased degree of polymerization. The process comprises reacting a hydroxyl-terminated, substantially linear, fiber-forming aromatic polyester having an aromatic dicarboxylic acid as a main acid component at an elevated temperature with a bi-cyclic imino ester compound of formula [I] or formula [II]. According to the process, the molecular chains of the aromatic polyester are bonded to each other by the terminal hydroxyl groups thereof to form rapidly the aromatic polyester having an increased degree of polymerization.
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申请公布号 |
US4291152(A) |
申请公布日期 |
1981.09.22 |
申请号 |
US19800133797 |
申请日期 |
1980.03.25 |
申请人 |
TEIJIN LIMITED |
发明人 |
INATA, HIROO;MATSUMURA, SHUNICHI;OGASAWARA, MAKOTO |
分类号 |
C08G63/685;C08G63/91;(IPC1-7):C08G63/44;C08G73/16 |
主分类号 |
C08G63/685 |
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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