Method for bleaching chemical paper pulps by final ozone treatment at high temperature

Details for Australian Patent Application No. 2007331538 (hide)

Owner ITT Manufacturing Enterprises, Inc.

Inventors Chirat, Christine; Hostachy, JeanChristophe; Lachenal, Dominique; Ried, Achim; Pipon, Guillaume

Agent Davies Collison Cave

Pub. Number AU-B-2007331538

PCT Pub. Number WO2008/071718

Priority 0655467 13.12.06 FR

Filing date 11 December 2007

Wipo publication date 19 June 2008

Acceptance publication date 27 January 2011

International Classifications

D21C 9/153 (2006.01) After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters

Event Publications

25 June 2009 PCT application entered the National Phase

  PCT publication WO2008/071718 Priority application(s): WO2008/071718

27 January 2011 Application Accepted

  Published as AU-B-2007331538

26 May 2011 Standard Patent Sealed

19 April 2012 Assignment Registered

  ITT Manufacturing Enterprises, Inc. The patent has been assigned to Exelis Inc.

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