发明名称 |
NOVEL WHOLLY AROMATIC COPOLYESTER, PROCESS FOR PRODUCTION THEREOF, AND FILM MELT-SHAPED THEREFROM |
摘要 |
A wholly aromatic copolyester composed mainly of isophthalic acid units and hydroquinone units, the total proportion of said isophthalic acid units and hydroquinone units being at least about 80 mole % based on the entire units, said wholly aromatic copolyester having a terminal carboxyl group concentration, measured by the method described in the specification, of not more than about 90 eq/106 g and a reduced viscosity, determined at 35 DEG C. in a mixed solvent of phenol and tetrachloroethane in a weight ratio of 4:6 in a concentration of 1.2 g/dl of at least about 0.6 and being substantially linear and melt-shapable and substantially free from a halogen atom bonded to the molecular chain, and a film prepared therefrom by melt shaping. |
申请公布号 |
DE3173976(D1) |
申请公布日期 |
1986.04.10 |
申请号 |
DE19813173976 |
申请日期 |
1981.07.31 |
申请人 |
TEIJIN LIMITED |
发明人 |
URASAKI, TAKANORI;YOSHIDA, TUGUSI;INATA, HIROO;HIRABAYASHI, YASUJI |
分类号 |
C08G63/19;C08G63/60;C08G63/64;C08G63/672;C08J5/18;(IPC1-7):C08G63/18;C08G63/22;C08G63/26 |
主分类号 |
C08G63/19 |
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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