WO2008042781A3 - Filters and methods of manufacturing the same - Google Patents

Filters and methods of manufacturing the same Download PDF

Info

Publication number
WO2008042781A3
WO2008042781A3 PCT/US2007/079908 US2007079908W WO2008042781A3 WO 2008042781 A3 WO2008042781 A3 WO 2008042781A3 US 2007079908 W US2007079908 W US 2007079908W WO 2008042781 A3 WO2008042781 A3 WO 2008042781A3
Authority
WO
WIPO (PCT)
Prior art keywords
middle layer
manufacturing
methods
same
filters
Prior art date
Application number
PCT/US2007/079908
Other languages
French (fr)
Other versions
WO2008042781A2 (en
Inventor
James W M Rygalski
John C Sellars
William R Sellars
Thomas C Shutt
Richard J Goepel
Original Assignee
Sellars Absorbent Materials Inc
James W M Rygalski
John C Sellars
William R Sellars
Thomas C Shutt
Richard J Goepel
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US11/538,746 external-priority patent/US8318062B2/en
Priority claimed from US11/789,187 external-priority patent/US20070295659A1/en
Application filed by Sellars Absorbent Materials Inc, James W M Rygalski, John C Sellars, William R Sellars, Thomas C Shutt, Richard J Goepel filed Critical Sellars Absorbent Materials Inc
Publication of WO2008042781A2 publication Critical patent/WO2008042781A2/en
Publication of WO2008042781A3 publication Critical patent/WO2008042781A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/18—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being cellulose or derivatives thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1615—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of natural origin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/02—Types of fibres, filaments or particles, self-supporting or supported materials
    • B01D2239/0216—Bicomponent or multicomponent fibres

Abstract

A filter and methods of manufacturing the same. In one embodiment, the filter includes a first scrim made from at least one thermoplastic material; a second scrim made from at least one thermoplastic material; and a middle layer positioned between the first and second scrims. The middle layer includes a dry-laid web of cellulose and opened, individuated staple bicomponent fiber. At least some of the bicomponent fiber in the middle layer is thermally bonded to at least some of the cellulose in the middle layer, and the first and second scrims are thermally bonded to the middle layer.
PCT/US2007/079908 2006-10-04 2007-09-28 Filters and methods of manufacturing the same WO2008042781A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US11/538,746 2006-10-04
US11/538,746 US8318062B2 (en) 2006-10-04 2006-10-04 Industrial absorbents and methods of manufacturing the same
US11/789,187 2007-04-23
US11/789,187 US20070295659A1 (en) 2005-09-29 2007-04-23 Filters and methods of manufacturing the same

Publications (2)

Publication Number Publication Date
WO2008042781A2 WO2008042781A2 (en) 2008-04-10
WO2008042781A3 true WO2008042781A3 (en) 2008-07-03

Family

ID=39271601

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/079908 WO2008042781A2 (en) 2006-10-04 2007-09-28 Filters and methods of manufacturing the same

Country Status (1)

Country Link
WO (1) WO2008042781A2 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4160059A (en) * 1976-05-12 1979-07-03 Honshu Seishi Kabushiki Kaisha Adsorptive nonwoven fabric comprising fused fibers, non-fused fibers and absorptive material and method of making same
US5064689A (en) * 1989-03-20 1991-11-12 Weyerhaeuser Company Method of treating discontinuous fibers
US6296737B1 (en) * 1996-10-23 2001-10-02 Weyerhaeuser Company Method of making readily debonded pulp products
US20020028401A1 (en) * 2000-07-01 2002-03-07 Clariant Gmbh Use of iron azo complex compounds as charge control agents
US20040097157A1 (en) * 2002-11-20 2004-05-20 Cosentino Steven R Thermal bondable film for insulation facing, and method for making the same
US20040258910A1 (en) * 2003-06-19 2004-12-23 Haile William Alston Water-dispersible and multicomponent fibers from sulfopolyesters
US20050211619A1 (en) * 2000-05-11 2005-09-29 Schroeder Industries, Llc Filter element with foam girdle to secure pleats and method of forming same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4160059A (en) * 1976-05-12 1979-07-03 Honshu Seishi Kabushiki Kaisha Adsorptive nonwoven fabric comprising fused fibers, non-fused fibers and absorptive material and method of making same
US5064689A (en) * 1989-03-20 1991-11-12 Weyerhaeuser Company Method of treating discontinuous fibers
US6296737B1 (en) * 1996-10-23 2001-10-02 Weyerhaeuser Company Method of making readily debonded pulp products
US20050211619A1 (en) * 2000-05-11 2005-09-29 Schroeder Industries, Llc Filter element with foam girdle to secure pleats and method of forming same
US20020028401A1 (en) * 2000-07-01 2002-03-07 Clariant Gmbh Use of iron azo complex compounds as charge control agents
US20040097157A1 (en) * 2002-11-20 2004-05-20 Cosentino Steven R Thermal bondable film for insulation facing, and method for making the same
US20040258910A1 (en) * 2003-06-19 2004-12-23 Haile William Alston Water-dispersible and multicomponent fibers from sulfopolyesters

Also Published As

Publication number Publication date
WO2008042781A2 (en) 2008-04-10

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