Electret webs with charge-enhancing additives

Details for Australian Patent Application No. 2009255469 (hide)

Owner 3M Innovative Properties Company

Inventors Sebastian, John M.; Li, Fuming B.; Bai, Feng; Jones, Marvin E.

Agent Freehills

Pub. Number AU-B-2009255469

PCT Pub. Number WO2009/148744

Priority 61/058,041 02.06.08 US

Filing date 4 May 2009

Wipo publication date 10 December 2009

Acceptance publication date 29 March 2012

International Classifications

B01D 39/02 (2006.01) Filtering material for liquid or gaseous fluids - Loose filtering material, e.g. loose fibres

D04H 1/42 (2006.01) Kinds or types of non-woven fabrics - characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece

D04H 3/16 (2006.01) Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length - with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion

Event Publications

16 December 2010 PCT application entered the National Phase

  PCT publication WO2009/148744 Priority application(s): WO2009/148744

29 March 2012 Application Accepted

  Published as AU-B-2009255469

26 July 2012 Standard Patent Sealed

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