Method for preparing an aromatic liquid crystal polyester resin and method for preparing a compound of aromatic liquid crystal polyester resin
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United States of America Patent
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Apr 21, 2015
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May 9, 2013
app pub date -
Jun 14, 2011
filing date -
Jul 20, 2010
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Abstract
Methods of preparing an aromatic liquid crystalline polyester resin and an aromatic liquid crystalline polyester resin compound are disclosed. A method of preparing an aromatic liquid crystalline polyester resin may include: acetylating a first monomer including an amino group by a reaction with a carboxylic acid anhydride; acetylating a second monomer including a hydroxyl group and not including an amino acid group with an additional carboxylic acid anhydride; and synthesizing an aromatic liquid crystalline polyester prepolymer by a condensation polymerization reaction of the acetylated first and second monomers with dicarboxylic acid. A method of preparing an aromatic liquid crystalline polyester resin compound may use the aromatic liquid crystalline polyester resin prepared according to the forgoing method.
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