Retention and drainage aids

Details for Australian Patent Application No. 2005317143 (hide)

Owner Hercules Incorporated

Inventors Hollomon, Martha G.; Harrington, John C.

Agent Spruson & Ferguson

Pub. Number AU-B-2005317143

PCT Pub. Number WO2006/065928

Priority 60/636,448 14.12.04 US

Filing date 13 December 2005

Wipo publication date 22 June 2006

Acceptance publication date 18 November 2010

International Classifications

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

D21H 17/42 (2006.01) Non-fibrous material added to the pulp, characterised by its constitution

Event Publications

5 July 2007 PCT application entered the National Phase

  PCT publication WO2006/065928 Priority application(s): WO2006/065928

18 November 2010 Application Accepted

  Published as AU-B-2005317143

17 March 2011 Standard Patent Sealed

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