Patent ID: 8618239
Filing Date: 2013-12-31
Classification: C08G,C09K

Abstract:
1. A method for forming a thermotropic, wholly aromatic liquid crystalline polymer, the method comprising: acetylating one or more precursor monomers for the liquid crystalline polymer; melt-polymerizing the acetylated monomers to form a liquid crystalline prepolymer that is in the form of a solid particulate material; feeding the prepolymer into a fluidized bed reactor; and supplying a heated gaseous stream into the fluidized bed to polymerize the prepolymer for a certain reaction time period, the heated gaseous stream increasing the temperature of the prepolymer at a rate of about 2.0° C. per minute or more to a temperature of from about 200° C. to about 340° C. during at least a portion of the reaction time period.