US Patent 7271287 Process for producing aromatic hydroxycarboxylic acids
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Patent Inventor Names
Koichi Sato0
Tatsuaki Yamaguchi0
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Patent abstract
There is provided a process for producing an aromatic hydroxycarboxylic acid which is capable of suppressing the formation of by-products and enhancing the selectivity of the intended product and is free from any purifying step. The process is characterized in that it is obtained by reacting an alkali metal salt of an aromatic hydroxy compound and carbon dioxide in a non-proton polar solvent in the presence of a solid basic catalyst.
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US Patent 07271287 Process for producing aromatic hydroxycarboxylic acids US Patent 7271287 Process for producing aromatic hydroxycarboxylic acids
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Patent Number
072712870
Patent Number
72712870
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Patent Jurisdiction
Patent Number
072712870
Date of Patent
September 18, 2007
0Patent Application Number
112707160
Date Filed
November 9, 2005
0Official Website
Patent Primary Examiner
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US Patent 07271287 Process for producing aromatic hydroxycarboxylic acids
Infobox
Is a
Patent jurisdiction
Patent number
07271287
Date of patent
September 18, 2007
Patent application number
11270716
Date Filed
November 9, 2005
Patent primary examiner
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