Composition and method for improving retention and drainage in papermaking processes by activating microparticles with a promoter-flocculant system

Details for Australian Patent Application No. 2008279098 (hide)

Owner Nalco Company

Inventors Cardoso, Javier S.; Wong Shing, Jane B.

Agent Shelston IP

Pub. Number AU-A-2008279098

PCT Pub. Number WO2009/015255

Priority 11/782,018 24.07.07 US

Filing date 24 July 2008

Wipo publication date 29 January 2009

International Classifications

D21H 21/00 (2006.01) Non-fibrous material added to the pulp, characterised by its function, form or properties

D21H 17/45 (2006.01) Non-fibrous material added to the pulp, characterised by its constitution

D21H 17/68 (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

28 January 2010 PCT application entered the National Phase

  PCT publication WO2009/015255 Priority application(s): WO2009/015255

27 January 2011 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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