WATER-SOLUBLE COPOLYMER, POLYMERIC FLOCCULANT, AND METHOD OF DEHYDRATING SLUDGE

Details for Australian Patent Application No. 2003211190 (hide)

Owner TOAGOSEI CO., LTD.

Inventors MORI, Yoshio; TAKEDA, Ken

Pub. Number AU-A-2003211190

PCT Number PCT/JP03/01878

PCT Pub. Number WO2003/072622

Priority 2002-53492 28.02.02 JP; 2002-58765 05.03.02 JP

Filing date 20 February 2003

Wipo publication date 9 September 2003

International Classifications

C08F 290/06 Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups

B01D 021/01 Separation of suspended solid particles from liquids by sedimentation - using flocculating agents

C02F 011/14 Treatment of sludge - with addition of chemical agents

Event Publications

24 July 2003 Complete Application Filed

  Priority application(s): 2002-53492 28.02.02 JP; 2002-58765 05.03.02 JP

16 October 2003 Application Open to Public Inspection

  Published as AU-A-2003211190

23 October 2003 Application Open to Public Inspection

  Published as AU-A-2003211190

18 November 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(f)/See Reg. 8.3(3). Examination has not yet been requested or directed for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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