(19)
(11) EP 1 569 887 A1

(12)

(43) Date of publication:
07.09.2005 Bulletin 2005/36

(21) Application number: 03790245.9

(22) Date of filing: 03.12.2003
(51) International Patent Classification (IPC)7C07C 51/47, C07C 63/26, C07C 51/265
(86) International application number:
PCT/US2003/038305
(87) International publication number:
WO 2004/052820 (24.06.2004 Gazette 2004/26)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 09.12.2002 US 315295
09.12.2002 US 315294
21.08.2003 US 645737
21.08.2003 US 645734
22.09.2003 US 667774

(71) Applicant: EASTMAN CHEMICAL COMPANY
Kingsport, TN 37660 (US)

(72) Inventors:
  • SUMNER, Charles, Edwan, Jr.
    Kingsport, TN 37664 (US)
  • BOWERS, David, Taylor
    Kingsport, TN 37660 (US)
  • GIBSON, Philip, Edward
    Kingsport, TN 37660 (US)
  • LIN, Robert
    Kingsport, TN 37664 (US)
  • ARNOLD, Ernest, William, III
    Lake Wylie, SC 29710 (US)
  • FUGATE, Eric, Jackson
    Gate City, VA 24251 (US)
  • STEVENSON, George, M.
    Blountville, TN 37617 (US)
  • MCCLANAHAN, Wayne
    deceased (US)
  • CARRELL, Harry, Lee
    Kingsport, TN 37664 (US)

(74) Representative: Wibbelmann, Jobst 
Wuesthoff & Wuesthoff, Patent- und Rechtsanwälte, Schweigerstrasse 2
81541 München
81541 München (DE)

   


(54) PROCESS FOR THE PURIFICATION OF A CRUDE CARBOXYLIC ACID SLURRY