US Patent 6998462 Polyester process
Patent 6998462 was granted and assigned to E.I. Du Pont De Nemours And Company on February, 2006 by the United States Patent and Trademark Office.
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Patent abstract
Disclosed is a process that comprises contacting, in the presence of an esterification or transesterification or polycondensation catalyst composition, a toner, and a phosphorus compound, a carbonyl compound and an alcohol under a condition suitable for esterification, transesterification, or polymerization.
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Patent Inventor Names
Donald E. Putzig0
Jiwen F. Duan0
Date of Patent
February 14, 2006
0Patent Application Number
104592440
Date Filed
June 11, 2003
0Patent Primary Examiner
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US Patent 6998462 Polyester process
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