发明名称 |
Process for producing thermotropic liquid crystalline polymer |
摘要 |
A process for producing a thermotropic liquid crystalline polymer having a flow beginning temperature of 340° C. or more comprising raising the temperature of a thermotropic liquid crystalline polymer from 200° C. or less to raising end temperature (A° C.) of (FT0+50)° C. or more in substantially solid phase condition,wherein the thermotropic liquid crystalline polymer has a flow beginning temperature (FT0) of 200° C. or more and 300° C. or less, and in a step of raising the resin temperature (t) from (FT0+20)° C. to (FT0+50)° C. (step (1)), the average raising speed of the resin temperature is from over 0.1° C./min. to less than 0.5° C./min. and the flow beginning temperature of the thermotropic liquid crystalline polymer at each resin temperature is (t-10)° C. or more and (t+40)° C. or less.
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申请公布号 |
US6582625(B2) |
申请公布日期 |
2003.06.24 |
申请号 |
US20010011287 |
申请日期 |
2001.12.11 |
申请人 |
SUMITOMO CHEMICAL COMPANY, LIMITED |
发明人 |
NAGASHIMA TOHRU;MIZUMOTO KOICHI;HARADA HIROSHI |
分类号 |
C08K3/00;C08G63/60;C08G63/78;C08G63/80;C08L67/00;(IPC1-7):C09K19/52 |
主分类号 |
C08K3/00 |
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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