Fluorometric method for monitoring surface additives in a papermaking process

Details for Australian Patent Application No. 2009223163 (hide)

Owner Nalco Company

Inventors Banks, Rodney H.; Zhang, Zhiyi

Agent Shelston IP

Pub. Number AU-A-2009223163

PCT Pub. Number WO2009/114750

Priority 12/047,736 13.03.08 US

Filing date 13 March 2009

Wipo publication date 17 September 2009

International Classifications

D21H 21/30 (2006.01) Non-fibrous material added to the pulp, characterised by its function, form or properties

D21H 23/08 (2006.01) Processes or apparatus for adding material to the pulp or to the paper

D21H 23/24 (2006.01) Processes or apparatus for adding material to the pulp or to the paper

D21H 23/78 (2006.01) Processes or apparatus for adding material to the pulp or to the paper

G01N 21/64 (2006.01) Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light - Fluorescence

G01N 21/84 (2006.01) Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light - Systems specially adapted for particular applications

G01N 21/86 (2006.01) Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light - Investigating moving sheets

Event Publications

16 September 2010 PCT application entered the National Phase

  PCT publication WO2009/114750 Priority application(s): WO2009/114750

19 April 2012 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(a). A direction to request examination has been given for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

Legal

The information provided by the Site not in the nature of legal or other professional advice. The information provided by the Site is derived from third parties and may contain errors. You must make your own enquiries and seek independent advice from the relevant industry professionals before acting or relying on any information contained herein. Check the above data against the Australian Patent Office AUSPAT database.

Next and Previous Patents/Applications

2009223177-Hydrocarbon synthesis

2009223162-Carrageenan modified by ion-exchange process