METHOD FOR THE SEPARATION OF ASCORBIC ACID FROM A POLAR SOLVENT CONTAINING ASCORBIC ACID AND 2-KETO-L-GULONIC ACID

Details for Australian Patent Application No. 2003246393 (hide)

Owner BASF AKTIENGESELLSCHAFT

Inventors KAIBEL, Gerd; MERGER, Martin; DOMSCHKE, Thomas; DECKERT, Petra; SAUER, Friedrich

Pub. Number AU-A-2003246393

PCT Number PCT/EP03/07256

PCT Pub. Number WO2004/007474

Priority 102 31 890.5 12.07.02 DE

Filing date 7 July 2003

Wipo publication date 2 February 2004

International Classifications

C07D 307/62 Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom

Event Publications

2 October 2003 Complete Application Filed

  Priority application(s): 102 31 890.5 12.07.02 DE

18 March 2004 Application Open to Public Inspection

  Published as AU-A-2003246393

7 April 2005 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(f)/See Reg. 8.3(3). Examination has not yet been requested or directed for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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