METHOD OF REDUCING THE SOLUBILITY OF CALCIUM SULFATE DIHYDRATE IN AN AQUEOUS SUSPENSION AND METHOD OF MAKING THE SAME

Details for Australian Patent Application No. 2002322884 (hide)

Owner KRUGER INC.

Inventors KERR, Bruce, R.; TOLNAI, Balazs

Pub. Number AU-A-2002322884

PCT Number PCT/CA02/01244

PCT Pub. Number WO2003/016216

Priority 2,355,027 13.08.01 CA; 2,367,593 15.01.02 CA

Filing date 9 August 2002

Wipo publication date 3 March 2003

International Classifications

C01F 011/46 Compounds of calcium, strontium, or barium

C09C 001/02 Treatment of specific inorganic materials other than fibrous fillers - Compounds of alkaline earth metals or magnesium

D21H 017/67 Non-fibrous material added to the pulp, characterised by its constitution

Event Publications

16 January 2003 Complete Application Filed

  Priority application(s): 2,355,027 13.08.01 CA; 2,367,593 15.01.02 CA

29 May 2003 Application Open to Public Inspection

  Published as AU-A-2002322884

6 May 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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