Title:
METAL SALTS OF A DIALKYL ESTER OF 5-SULFOISOPHTHALIC ACID AND METHOD OF PREPARING SAME
Document Type and Number:
WIPO Patent Application WO/2012/118973
Kind Code:
A3
Abstract:
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.
Inventors:
OSTER TIMOTHY A (US)
Application Number:
PCT/US2012/027288
Publication Date:
November 15, 2012
Filing Date:
March 01, 2012
Export Citation:
Assignee:
FUTUREFUEL CHEMICAL CO (US)
OSTER TIMOTHY A (US)
OSTER TIMOTHY A (US)
International Classes:
C07F1/04; C07C303/42; C07C309/28; C07C309/44
Foreign References:
| US5348832A | 1994-09-20 | |||
| US6824944B2 | 2004-11-30 | |||
| US20070270535A1 | 2007-11-22 | |||
| US6075115A | 2000-06-13 | |||
| US6479619B1 | 2002-11-12 | |||
| US6830859B2 | 2004-12-14 |
Other References:
See also references of EP 2681225A4
Attorney, Agent or Firm:
BAKER, Stanley, B. et al. (A Limited Liability Partnership6000 Fairview Road, Suite 120, Charlotte NC, US)
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