Pitch and stickies control in pulp and papermaking processes

Details for Australian Patent Application No. 2007317872 (hide)

Owner Hercules Incorporated

Inventors Xu, Zu-Feng; Carey, William S.

Agent Spruson & Ferguson

Pub. Number AU-B-2007317872

PCT Pub. Number WO2008/057492

Priority 60/856,996 06.11.06 US

Filing date 5 November 2007

Wipo publication date 15 May 2008

Acceptance publication date 25 August 2011

International Classifications

D21C 9/08 (2006.01) After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters

D21H 17/26 (2006.01) Non-fibrous material added to the pulp, characterised by its constitution

D21H 21/02 (2006.01) Non-fibrous material added to the pulp, characterised by its function, form or properties

Event Publications

4 June 2009 PCT application entered the National Phase

  PCT publication WO2008/057492 Priority application(s): WO2008/057492

25 August 2011 Application Accepted

  Published as AU-B-2007317872

22 December 2011 Standard Patent Sealed

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