Metal salts of a dialkyl ester of 5-sulfoisophthalic acid and method of preparing same

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United States of America Patent

PATENT NO 9193677
APP PUB NO 20120225981A1
SERIAL NO

13409943

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The claimed invention meets these and other objects by providing a method of preparing a metal salt of a dialkyl ester of 5-sulfoisophthalic acid. Broadly speaking, the method provides for the contacting of a dialkyl ester of 5-sulfoisophthalic acid with a metal cation in a buffered reaction mixture to form the metal salt of the dialkyl ester. The reaction mixture is buffered, at least in part, by the acetate of the metal cation. The method according to invention also encompasses various methods of preparing the dialkyl ester of 5-sulfoisophthalic acid.

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Patent Owner(s)

  • FUTURE FUEL CHEMICAL COMPANY;FUTUREFUEL CHEMICAL COMPANY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Oster, Timothy Batesville, US 1 2

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