Patent ID: 6582625
Filing Date: 2003-06-24
Classification: C08G

Abstract:
A process for producing a thermotropic liquid crystalline polymer having a flow beginning temperature of 340Â° C. or more comprising raising the temperature of a thermotropic liquid crystalline polymer from 200Â° C. or less to raising end temperature (AÂ° C.) of (FT0+50)Â° C. or more in substantially solid phase condition,wherein the thermotropic liquid crystalline polymer has a flow beginning temperature (FT0) of 200Â° C. or more and 300Â° C. or less, and in a step of raising the resin temperature (t) from (FT0+20)Â° C. to (FT0+50)Â° C. (step (1)), the average raising speed of the resin temperature is from over 0.1Â° C./min. to less than 0.5Â° C./min. and the flow beginning temperature of the thermotropic liquid crystalline polymer at each resin temperature is (tâˆ’10)Â° C. or more and (t+40)Â° C. or less.