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1. WO2011011395 - BAG FILTER COMPRISING FILTER FELT OF META-ARAMID AND PARA-ARAMID STAPLE FIBER

Publication Number WO/2011/011395
Publication Date 27.01.2011
International Application No. PCT/US2010/042577
International Filing Date 20.07.2010
IPC
B01D 39/08 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
39Filtering material for liquid or gaseous fluids
08Filter cloth, i.e. woven, knitted or interlaced material
B01D 39/16 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
39Filtering material for liquid or gaseous fluids
14Other self-supporting filtering material
16of organic material, e.g. synthetic fibres
CPC
B01D 2239/04
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2239Aspects relating to filtering material for liquid or gaseous fluids
04Additives and treatments of the filtering material
B01D 2239/0457
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2239Aspects relating to filtering material for liquid or gaseous fluids
04Additives and treatments of the filtering material
0457Specific fire retardant or heat resistant properties
B01D 2239/0613
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2239Aspects relating to filtering material for liquid or gaseous fluids
06Filter cloth, e.g. knitted, woven non-woven; self-supported material
0604Arrangement of the fibres in the filtering material
0613Woven
B01D 2239/064
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2239Aspects relating to filtering material for liquid or gaseous fluids
06Filter cloth, e.g. knitted, woven non-woven; self-supported material
0604Arrangement of the fibres in the filtering material
064The fibres being mixed
B01D 2239/0659
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2239Aspects relating to filtering material for liquid or gaseous fluids
06Filter cloth, e.g. knitted, woven non-woven; self-supported material
065More than one layer present in the filtering material
0659The layers being joined by needling
B01D 2239/1291
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2239Aspects relating to filtering material for liquid or gaseous fluids
12Special parameters characterising the filtering material
1291Other parameters
Applicants
  • E. I. DU PONT DE NEMOURS AND COMPANY [US]/[US] (AllExceptUS)
  • KOHLI, Anil [IN]/[US] (UsOnly)
  • WYSS, Kurt, Hans [CH]/[CH] (UsOnly)
Inventors
  • KOHLI, Anil
  • WYSS, Kurt, Hans
Agents
  • STRICKLAND, Frederick, D.
Priority Data
12/505,79720.07.2009US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) BAG FILTER COMPRISING FILTER FELT OF META-ARAMID AND PARA-ARAMID STAPLE FIBER
(FR) FILTRE À MANCHES COMPRENANT UN FEUTRE POUR FILTRES EN FIBRES DE MÉTA ET DE PARA-ARAMIDE DISCONTINUES
Abstract
(EN)
This invention relates to a bag filter having a tubular section,a closed end, and an open end; the tubular section comprising a filter felt consisting essentially of a batt of an intimate blend of fibers needle-punched to a woven scrim, the blend of fibers consisting of 50 to 70 percent by weight meta-aramid staple fiber, and 30 to 50 percent by weight para-aramid staple fiber; said filter felt having a total basis weight of from 10 to 19 ounces per square yard (340 to 580 grams per square meter).
(FR)
Cette invention concerne un filtre à manches qui présente une section tubulaire, une extrémité fermée et une extrémité ouverte, la section tubulaire comprenant un feutre pour filtres constitué essentiellement d'un matelas fait d'un mélange intime de fibres qui a été aiguilleté pour donner un canevas tissé. Le mélange de fibres est constitué de 50 à 70 % en poids de fibres de méta-aramide discontinues et de 30 à 50 % en poids de fibres de para-aramide discontinues. Le feutre pour filtres présente une masse surfacique totale comprise entre 10 et 19 onces par yard carré (340 à 580 grammes par mètre carré).
Latest bibliographic data on file with the International Bureau