AU3729585A – Cylindrical fibrous structures and method and apparatus for manufacture thereof
– Google Patents
AU3729585A – Cylindrical fibrous structures and method and apparatus for manufacture thereof
– Google Patents
Cylindrical fibrous structures and method and apparatus for manufacture thereof
Info
Publication number
AU3729585A
AU3729585A
AU37295/85A
AU3729585A
AU3729585A
AU 3729585 A
AU3729585 A
AU 3729585A
AU 37295/85 A
AU37295/85 A
AU 37295/85A
AU 3729585 A
AU3729585 A
AU 3729585A
AU 3729585 A
AU3729585 A
AU 3729585A
Authority
AU
Australia
Prior art keywords
microfibers
fiber
synthetic
mandrel
fibrous
Prior art date
1984-01-06
Legal status (The legal status 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 status listed.)
Granted
Application number
AU37295/85A
Other versions
AU581420B2
(en
Inventor
Arthur Bradley
Timothy R. Brennan
Colin F. Harwood
David B. Pall
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pall Corp
Original Assignee
Pall Corp
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.)
1984-01-06
Filing date
1985-01-03
Publication date
1985-07-18
Family has litigation
First worldwide family litigation filed
litigation
Critical
https://patents.darts-ip.com/?family=24272890&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU3729585(A)
«Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
1985-01-03
Application filed by Pall Corp
filed
Critical
Pall Corp
1985-07-18
Publication of AU3729585A
publication
Critical
patent/AU3729585A/en
1989-02-23
Application granted
granted
Critical
1989-02-23
Publication of AU581420B2
publication
Critical
patent/AU581420B2/en
2005-01-03
Anticipated expiration
legal-status
Critical
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
D—TEXTILES; PAPER
D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
D01D5/00—Formation of filaments, threads, or the like
D01D5/08—Melt spinning methods
D01D5/098—Melt spinning methods with simultaneous stretching
D01D5/0985—Melt spinning methods with simultaneous stretching by means of a flowing gas (e.g. melt-blowing)
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01D—SEPARATION
B01D39/00—Filtering material for liquid or gaseous fluids
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
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
B01D39/163—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin sintered or bonded
D—TEXTILES; PAPER
D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
D04H1/56—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
D—TEXTILES; PAPER
D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
D04H3/07—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments otherwise than in a plane, e.g. in a tubular way
D04H3/077—Stick, rod or solid cylinder shaped
D—TEXTILES; PAPER
D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
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
B01D2239/04—Additives and treatments of the filtering material
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
B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
B01D2239/065—More than one layer present in the filtering material
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
B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
B01D2239/065—More than one layer present in the filtering material
B01D2239/0654—Support layers
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
B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
B01D2239/069—Special geometry of layers
B01D2239/0695—Wound layers
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
B01D2239/10—Filtering material manufacturing
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
B01D2239/12—Special parameters characterising the filtering material
B01D2239/1233—Fibre diameter
Abstract
Cylindrical fibrous structures comprising a fibrous mass of nonwoven, synthetic, polymeric microfibers wherein the microfibers are substantially free of fiber-to-fiber bonding and secured to each other by mechanical entanglement or intertwining, the fiber structure having a substantially constant voids volume over at least a substantial portion of the structure and, preferably, a graded fiber diameter structure, both as measured in the radial direction. The structures are particularly useful as depth filters.The method for preparing such fibrous structures comprises the steps of:(a) extruding synthetic, polymeric material from a fiberizing die and attenuating the extruded polymeric material to form microfibers by the application of one or more gas streams directed toward a rotating mandrel and a forming roll in operative relationship with the mandrel;(b) cooling the synthetic, polymeric microfibers prior to their collection on the mandrel to a temperature below that at which they bond or fuse together, thereby substantially eliminating fiber-to-fiber bonding; and(c) collecting the cooled microfibers on the mandrel as a nonwoven, synthetic fibrous mass while applying a force on the exterior surface of the collected microfibers by the forming roll; wherein the process variables are controlled to form the cylindrical fiber structure with at least the major portion of the fibrous mass having a substantially constant voids volume.
AU37295/85A
1984-01-06
1985-01-03
Cylindrical fibrous structures and method and apparatus for manufacture thereof
Expired
AU581420B2
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
US06/568,824
US4594202A
(en)
1984-01-06
1984-01-06
Method of making cylindrical fibrous filter structures
US568824
1984-01-06
Publications (2)
Publication Number
Publication Date
AU3729585A
true
AU3729585A
(en)
1985-07-18
AU581420B2
AU581420B2
(en)
1989-02-23
Family
ID=24272890
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
AU37295/85A
Expired
AU581420B2
(en)
1984-01-06
1985-01-03
Cylindrical fibrous structures and method and apparatus for manufacture thereof
Country Status (16)
Country
Link
US
(1)
US4594202A
(en)
EP
(1)
EP0148638B1
(en)
JP
(1)
JPS60216818A
(en)
KR
(1)
KR910009125B1
(en)
AT
(1)
ATE47731T1
(en)
AU
(1)
AU581420B2
(en)
CA
(1)
CA1255863A
(en)
CH
(1)
CH662956A5
(en)
DE
(1)
DE3480351D1
(en)
DK
(1)
DK168400B1
(en)
FR
(1)
FR2557893B1
(en)
GB
(1)
GB2152471B
(en)
IL
(1)
IL73988A
(en)
MX
(1)
MX160662A
(en)
NO
(1)
NO163370C
(en)
ZA
(1)
ZA8525B
(en)
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2018-12-26
2020-07-09
Jnc株式会社
Filter medium for cell culture and depth filter including filter medium
CN110053273B
(en)
*
2019-05-24
2023-11-07
芜湖滤森净化设备有限公司
High-temperature melt-blowing process of filter element
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James H Rhodes & Company
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1974-04-02
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1976-08-03
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1976-01-20
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US3959421A
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1976-05-25
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1978-10-04
Ici Ltd
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JPS5620383A
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1979-07-27
1981-02-25
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Original reader
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(en)
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1981-04-08
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Steel pipe joint for driving
1984
1984-01-06
US
US06/568,824
patent/US4594202A/en
not_active
Expired – Lifetime
1984-12-27
EP
EP84309094A
patent/EP0148638B1/en
not_active
Expired
1984-12-27
AT
AT84309094T
patent/ATE47731T1/en
not_active
IP Right Cessation
1984-12-27
DE
DE8484309094T
patent/DE3480351D1/en
not_active
Expired
1984-12-28
GB
GB08432750A
patent/GB2152471B/en
not_active
Expired
1984-12-31
MX
MX203931A
patent/MX160662A/en
unknown
1985
1985-01-02
IL
IL73988A
patent/IL73988A/en
not_active
IP Right Cessation
1985-01-02
ZA
ZA8525A
patent/ZA8525B/en
unknown
1985-01-03
AU
AU37295/85A
patent/AU581420B2/en
not_active
Expired
1985-01-04
CH
CH28/85A
patent/CH662956A5/en
not_active
IP Right Cessation
1985-01-04
DK
DK004685A
patent/DK168400B1/en
not_active
IP Right Cessation
1985-01-04
FR
FR8500099A
patent/FR2557893B1/en
not_active
Expired
1985-01-04
CA
CA000471536A
patent/CA1255863A/en
not_active
Expired
1985-01-04
NO
NO850036A
patent/NO163370C/en
not_active
IP Right Cessation
1985-01-05
KR
KR1019850000023A
patent/KR910009125B1/en
not_active
IP Right Cessation
1985-01-07
JP
JP60000750A
patent/JPS60216818A/en
active
Granted
Also Published As
Publication number
Publication date
EP0148638B1
(en)
1989-11-02
IL73988A0
(en)
1985-04-30
EP0148638A2
(en)
1985-07-17
KR910009125B1
(en)
1991-10-31
AU581420B2
(en)
1989-02-23
MX160662A
(en)
1990-04-05
DK4685A
(en)
1985-07-07
ATE47731T1
(en)
1989-11-15
JPS60216818A
(en)
1985-10-30
CA1255863A
(en)
1989-06-20
DE3480351D1
(en)
1989-12-07
GB2152471A
(en)
1985-08-07
US4594202A
(en)
1986-06-10
ZA8525B
(en)
1985-11-27
NO850036L
(en)
1985-07-08
JPH0146169B2
(en)
1989-10-06
IL73988A
(en)
1989-12-15
CA1258643C
(en)
1989-08-22
FR2557893B1
(en)
1987-05-07
FR2557893A1
(en)
1985-07-12
NO163370C
(en)
1990-05-16
DK4685D0
(en)
1985-01-04
CH662956A5
(en)
1987-11-13
KR850005520A
(en)
1985-08-26
GB2152471B
(en)
1988-08-17
DK168400B1
(en)
1994-03-21
GB8432750D0
(en)
1985-02-06
NO163370B
(en)
1990-02-05
EP0148638A3
(en)
1986-09-24
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