Production by distillation of acetone cyanhydrin and method for produ- cing methacrylic ester and subsequent products

Details for Australian Patent Application No. 2007331690 (hide)

Owner Evonik Rohm GmbH

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

Agent Spruson & Ferguson

Pub. Number AU-B-2007331690

PCT Pub. Number WO2008/071465

Priority 102006059512.2 14.12.06 DE

Filing date 31 August 2007

Wipo publication date 19 June 2008

Acceptance publication date 25 October 2012

International Classifications

C07C 231/06 Preparation of carboxylic acid amides

B01D 3/00 Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping

C07C 67/20 Preparation of carboxylic acid esters

C07C 253/08 Preparation of carboxylic acid nitriles

C08F 20/18 Homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide, or nitrile thereof

Event Publications

23 April 2009 PCT application entered the National Phase

  PCT publication WO2008/071465 Priority application(s): WO2008/071465

25 October 2012 Application Accepted

  Published as AU-B-2007331690

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