Integrated process and apparatus for preparing esters of methacrylic acid from acetone and hydrocyanic acid

Details for Australian Patent Application No. 2007327788 (hide)

Owner Evonik Rohm GmbH

Inventors Perl, Andreas; Schafer, Thomas; Weber, Robert; Sing, Rudolf; Mertz, Thomas; Gropp, Udo

Agent Spruson & Ferguson

Pub. Number AU-A-2007327788

PCT Pub. Number WO2008/068064

Priority 102006058250.0 08.12.06 DE

Filing date 31 August 2007

Wipo publication date 12 June 2008

International Classifications

C07C 67/20 (2006.01) Preparation of carboxylic acid esters

C07C 69/54 (2006.01) Esters of carboxylic acids

C07C 231/06 (2006.01) Preparation of carboxylic acid amides

C07C 231/14 (2006.01) Preparation of carboxylic acid amides

C07C 233/09 (2006.01) Carboxylic acid amides

C07C 253/00 (2006.01) Preparation of carboxylic acid nitriles

C07C 255/16 (2006.01) Carboxylic acid nitriles

Event Publications

7 May 2009 PCT application entered the National Phase

  PCT publication WO2008/068064 Priority application(s): WO2008/068064

21 July 2011 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(a). A direction to request examination has been given for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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