Process for producing liquid crystal polymer
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United States of America Patent
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Sep 5, 2000
Grant Date -
N/A
app pub date -
Jan 14, 2000
filing date -
Jan 14, 2000
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Abstract
A potassium catalyst is used in combination with a cobalt catalyst to increase the reaction rate and/or reduce the reaction temperature of a melt polymerization process for producing an anisotropic melt-phase forming polymer derived from p-hydroxybenzoic acid, 6-hydroxy-2-naphthoic acid, aromatic hydroxycarboxylic acid, aromatic diol, at least a portion of which is resorcinol and at least one aromatic dicarboxylic acid, compared to a like process wherein either catalyst is used alone.
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