METHOD FOR THE PRODUCTION OF POLYTETRAHYDROFURAN WITH A REDUCED CYCLICAL OLIGOMERIC ETHER CONTENT

Details for Australian Patent Application No. 2003219011 (hide)

Owner BASF AKTIENGESELLSCHAFT

Inventors SIGWART, Christoph; HAUBNER, Martin; MAASSEN, Siegmar; FISCHER, Rolf-Hartmuth

Pub. Number AU-A-2003219011

PCT Number PCT/EP03/02189

PCT Pub. Number WO2003/076494

Priority 102 10 728.9 12.03.02 DE

Filing date 4 March 2003

Wipo publication date 22 September 2003

International Classifications

C08G 065/30 Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule

C08G 065/20 Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule

C07C 041/34 Preparation of ethers

Event Publications

31 July 2003 Complete Application Filed

  Priority application(s): 102 10 728.9 12.03.02 DE

30 October 2003 Application Open to Public Inspection

  Published as AU-A-2003219011

2 December 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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