IN2012DN00385A - - Google Patents

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Publication number
IN2012DN00385A
IN2012DN00385A IN385DEN2012A IN2012DN00385A IN 2012DN00385 A IN2012DN00385 A IN 2012DN00385A IN 385DEN2012 A IN385DEN2012 A IN 385DEN2012A IN 2012DN00385 A IN2012DN00385 A IN 2012DN00385A
Authority
IN
India
Prior art keywords
weight
needle
percent
per square
tubular section
Prior art date
Application number
Inventor
Anil Kohli
Kurt Hans Wyss
Original Assignee
Du Pont
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
Application filed by Du Pont filed Critical Du Pont
Publication of IN2012DN00385A publication Critical patent/IN2012DN00385A/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
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)
  • Nonwoven Fabrics (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

This invention relates to a bag filter having a tubular section, a closed end, and an open end; the tubular section comprising a scrimless filter felt consisting essentially of a needle-punched batt of an intimate blend of fibers consisting of 50 to 79 percent by weight meta-aramid staple fiber, and 21 to 50 percent by weight para-aramid staple fiber; said needle-punched batt having a basis weight of from 10 to 17 ounces per square yard (340 to 580 grams per square meter).
IN385DEN2012 2009-07-20 2010-07-20 IN2012DN00385A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/505,780 US8114180B2 (en) 2009-07-20 2009-07-20 Bag filter comprising scrimless filter felt of meta-and-para-aramid staple fiber
PCT/US2010/042552 WO2011011381A1 (en) 2009-07-20 2010-07-20 Bag filter comprising scrimless filter felt of meta- and para-aramid staple fiber

Publications (1)

Publication Number Publication Date
IN2012DN00385A true IN2012DN00385A (en) 2015-08-21

Family

ID=43128198

Family Applications (1)

Application Number Title Priority Date Filing Date
IN385DEN2012 IN2012DN00385A (en) 2009-07-20 2010-07-20

Country Status (6)

Country Link
US (1) US8114180B2 (en)
EP (1) EP2456535A1 (en)
JP (1) JP2012533429A (en)
CN (1) CN102470305A (en)
IN (1) IN2012DN00385A (en)
WO (1) WO2011011381A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110011044A1 (en) * 2009-07-20 2011-01-20 E.I. Du Pont De Nemours And Company Bag filter comprising filter felt of meta-aramid and para-aramid staple fiber
DE102011014202A1 (en) * 2011-03-16 2012-09-20 Sandler Ag Filter medium for the production of pleated filters
JP6113953B2 (en) * 2011-12-28 2017-04-12 帝人株式会社 Filter materials and filter composites
US10512875B2 (en) * 2016-01-22 2019-12-24 Bha Altair, Llc Filter and filter media having a fiber blend
WO2018139472A1 (en) * 2017-01-27 2018-08-02 帝人フロンティア株式会社 Bag filter fabric and production method therefor

Family Cites Families (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL189176B (en) 1956-07-13 1900-01-01 Hisamitsu Pharmaceutical Co PLASTER BASED ON A SYNTHETIC RUBBER.
US3063966A (en) 1958-02-05 1962-11-13 Du Pont Process of making wholly aromatic polyamides
US3227793A (en) 1961-01-23 1966-01-04 Celanese Corp Spinning of a poly(polymethylene) terephthalamide
DE1193097B (en) 1960-06-10 1965-05-20 Cap Ges Fuer Entwicklung Von M Method and circuit arrangement for counting and / or storing pulses
US3414645A (en) 1964-06-19 1968-12-03 Monsanto Co Process for spinning wholly aromatic polyamide fibers
US3287324A (en) 1965-05-07 1966-11-22 Du Pont Poly-meta-phenylene isophthalamides
US3684284A (en) 1970-09-18 1972-08-15 Chas W House & Sons Inc Pile fabric method and product
US3869429A (en) 1971-08-17 1975-03-04 Du Pont High strength polyamide fibers and films
US3869430A (en) 1971-08-17 1975-03-04 Du Pont High modulus, high tenacity poly(p-phenylene terephthalamide) fiber
US3767756A (en) 1972-06-30 1973-10-23 Du Pont Dry jet wet spinning process
US4056374A (en) 1976-02-19 1977-11-01 American Air Filter Company, Inc. Tubular gas filter
DE2632875C2 (en) 1976-04-29 1982-01-14 E.I. du Pont de Nemours and Co., 19898 Wilmington, Del. Process for the production of a needled nonwoven fabric from crystallized poly (m-phenylene isophthalamide) fibers and needled, dimensionally stable nonwovens produced therefrom
US4310336A (en) 1980-02-25 1982-01-12 Joy Manufacturing Company Filter bag attachment
US4490253A (en) 1983-04-14 1984-12-25 Tafara Peter T Filter bag with removable ring and handle and method of assembly therefor
US4585833A (en) 1983-05-26 1986-04-29 Union Carbide Corporation Low shrinkling curable poly(acrylate) molding compositions
US4481022A (en) 1983-12-09 1984-11-06 Reier Gerald J Filter bag assembly
US4536439A (en) 1985-01-07 1985-08-20 E. I. Du Pont De Nemours And Company Light weight filter felt
JPH038333Y2 (en) * 1985-03-04 1991-02-28
US4668234A (en) 1985-08-15 1987-05-26 E. I. Du Pont De Nemours And Company Aromatic polyamide fibers and process for stabilizing such fibers with surfactants
US4755335A (en) 1986-09-12 1988-07-05 E. I. Du Pont De Nemours And Company Method of improving impregnation of poly (meta-phenylene isophthalamide) fibers
US4883496A (en) 1988-02-14 1989-11-28 E. I. Du Pont De Nemours And Company Process for dyeing crystalline aromatic polyamide fibers with water-insoluble dyes
JPH03284310A (en) * 1990-03-30 1991-12-16 Kanebo Ltd Filter cloth for bag filter
US5096459A (en) 1990-09-26 1992-03-17 E. I. Du Pont De Nemours And Company Method of dyeing aromatic polyamide fibers with water-soluble dyes
US5288536A (en) * 1993-05-28 1994-02-22 E. I. Du Pont De Nemours And Company Hydraulic-jet-treated stitchbonded fabric
JPH08192017A (en) * 1995-01-20 1996-07-30 Teijin Ltd Filter cloth improved in durability
US5667743A (en) 1996-05-21 1997-09-16 E. I. Du Pont De Nemours And Company Wet spinning process for aramid polymer containing salts
JP4428683B2 (en) * 2001-11-27 2010-03-10 株式会社タクマ Gas purification system and gas purification method
US20040096629A1 (en) * 2002-11-19 2004-05-20 Aneja Arun Pal Vertically stacked carded aramid web useful in fire fighting clothing
US6808548B2 (en) 2002-12-31 2004-10-26 Hollinee Glass Corporation Three component filtration material
CA2520583C (en) * 2003-03-31 2011-04-26 Toray Industries Inc. Filter fabric
US7043943B2 (en) * 2004-06-12 2006-05-16 Monterey Mills High heat filter fabric and method
US7344035B1 (en) * 2004-06-12 2008-03-18 Siny Corp. High heat filter fabric and method
US20060086656A1 (en) * 2004-10-25 2006-04-27 Morgan H W Fluid filter with modular housing and method of manufacture
CN101489656B (en) * 2006-05-26 2013-02-13 宝柏氏公司 Hot gas filtration fabrics with silica and flame resistant fibers
US7819936B2 (en) * 2007-08-22 2010-10-26 E.I. Du Pont De Nemours And Company Filter felts and bag filters comprising blends of fibers derived from diamino diphenyl sulfone and heat resistant fibers
US8448309B2 (en) * 2007-11-14 2013-05-28 Kolon Industries, Inc. Aramid nonwoven fabric and preparation method therefor
JP2010260006A (en) * 2009-05-08 2010-11-18 Teijin Techno Products Ltd Filter material

Also Published As

Publication number Publication date
US8114180B2 (en) 2012-02-14
US20110011043A1 (en) 2011-01-20
JP2012533429A (en) 2012-12-27
CN102470305A (en) 2012-05-23
WO2011011381A1 (en) 2011-01-27
EP2456535A1 (en) 2012-05-30

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