Method for concentrating an aqueous ammonium carbamate stream

Details for Australian Patent Application No. 2006244735 (hide)

Owner Stamicarbon B.V.

Inventors Tjioe, Tjay Tjien; Mennen, Johannes Henricus

Agent Phillips Ormonde Fitzpatrick

Pub. Number AU-B-2006244735

PCT Pub. Number WO2006/121332

Priority 1029038 13.05.05 NL

Filing date 15 May 2006

Wipo publication date 16 November 2006

Acceptance publication date 16 February 2012

International Classifications

C07C 273/12 (2006.01) Preparation of urea or its derivatives, i.e. compounds containing any of the groups the nitrogen atoms not being part of nitro or nitroso groups

Event Publications

29 November 2007 PCT application entered the National Phase

  PCT publication WO2006/121332 Priority application(s): WO2006/121332

14 October 2010 Assignment before Grant

  DSM IP Assets B.V. The application has been assigned to Stamicarbon B.V.

16 February 2012 Application Accepted

  Published as AU-B-2006244735

14 June 2012 Standard Patent Sealed

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