Composition for improving the retention and drainage in the manufacture of paper

Details for Australian Patent Application No. 2005334474 (hide)

Owner Hercules Incorporated

Inventors Gelman, Robert A.; Sutman, Frank J.; Harrington, John C.

Agent Spruson & Ferguson

Pub. Number AU-A-2005334474

PCT Pub. Number WO2007/011420

Priority 11/313,984 21.12.05 US; 60/694,058 24.06.05 US; 60/640,180 29.12.04 US

Filing date 22 December 2005

Wipo publication date 25 January 2007

International Classifications

C08L 53/00 (2006.01) Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds

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

26 July 2007 PCT application entered the National Phase

  PCT publication WO2007/011420 Priority application(s): WO2007/011420

21 July 2011 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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