Use of copolymers for reducing precipitates and deposits from inorganic and organic impurities in the bayer process for the extraction of aluminium hydroxide

Details for Australian Patent Application No. 2005229337 (hide)

Owner Ashland Licensing and Intellectual Property LLC.

Inventors Poschmann, Rainer; Kuboth, Detlef; Flocken, Christian

Agent Callinan

Pub. Number AU-A-2005229337

PCT Pub. Number WO2005/095477

Priority 10 2004 017 034.7 02.04.04 DE

Filing date 28 February 2005

Wipo publication date 13 October 2005

International Classifications

C08F 220/00 (2006.01) 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

16 November 2006 PCT application entered the National Phase

  PCT publication WO2005/095477 Priority application(s): WO2005/095477

23 September 2010 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(d). Examination has been requested or an examination report has issued for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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