US Patent 7553990 Process for the synthesis of 2, 5-dihydroxyterephthalic acid
Patent 7553990 was granted and assigned to E.I. Du Pont De Nemours And Company on June, 2009 by the United States Patent and Trademark Office.
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Patent Inventor Names
Joachim C. Ritter0
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Patent abstract
2,5-dihydroxyterephthalic acid is produced in high yields and high purity from 2,5-dihaloterephthalic acid by contact with a copper source and a ligand that coordinates to copper under basic conditions.
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US Patent 07553990 Process for the synthesis of 2, 5-dihydroxyterephthalic acid US Patent 7553990 Process for the synthesis of 2, 5-dihydroxyterephthalic acid
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Patent Number
07553990
Patent Number
7553990
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US Patent 07553990 Process for the synthesis of 2, 5-dihydroxyterephthalic acid
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Is a
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Patent jurisdiction
Patent number
07553990
Date of patent
June 30, 2009
Patent application number
12025915
Date Filed
February 5, 2008
Patent primary examiner
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