Removal of colloids and soluble substances using cationic nanoparticles in the papermaking process

Details for Australian Patent Application No. 2006294284 (hide)

Owner Deng, L.

Inventors Deng, Li

Agent Shelston IP

Pub. Number AU-A-2006294284

PCT Pub. Number WO2007/033601

Priority 200510104998.0 26.09.05 CN

Filing date 22 September 2006

Wipo publication date 29 March 2007

International Classifications

C01B 33/149 (2006.01) Silicon

D21H 17/69 (2006.01) Non-fibrous material added to the pulp, characterised by its constitution

D21H 21/10 (2006.01) Non-fibrous material added to the pulp, characterised by its function, form or properties - Retention agents or drainage improvers

Event Publications

22 May 2008 PCT application entered the National Phase

  PCT publication WO2007/033601 Priority application(s): WO2007/033601

23 September 2010 Amendment Made

  The nature of the amendment is: Add coinventors Larsson, Bo; Tokarz, Marek; Persson, Michael; Paulapuro, Hannu; Laine, Jaakko E; Hynninen, Pertti; Arenander, Sven

19 April 2012 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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