WO2007121458A3 - Method and apparatus for production of meltblown nanofibers - Google Patents

Method and apparatus for production of meltblown nanofibers Download PDF

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Publication number
WO2007121458A3
WO2007121458A3 PCT/US2007/066847 US2007066847W WO2007121458A3 WO 2007121458 A3 WO2007121458 A3 WO 2007121458A3 US 2007066847 W US2007066847 W US 2007066847W WO 2007121458 A3 WO2007121458 A3 WO 2007121458A3
Authority
WO
WIPO (PCT)
Prior art keywords
plate
meltblown
production
grooves
polymer
Prior art date
Application number
PCT/US2007/066847
Other languages
French (fr)
Other versions
WO2007121458A2 (en
Inventor
James E Brang
Arnold Wilkie
Jeff Haggard
Original Assignee
Hills Inc
James E Brang
Arnold Wilkie
Jeff Haggard
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 US11/736,399 external-priority patent/US10041188B2/en
Application filed by Hills Inc, James E Brang, Arnold Wilkie, Jeff Haggard filed Critical Hills Inc
Priority to JP2009506734A priority Critical patent/JP5439170B2/en
Priority to EP07760821.4A priority patent/EP2019875B1/en
Publication of WO2007121458A2 publication Critical patent/WO2007121458A2/en
Publication of WO2007121458A3 publication Critical patent/WO2007121458A3/en

Links

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
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/02—Spinnerettes
    • D01D4/025—Melt-blowing or solution-blowing dies
    • 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)

Abstract

A method and apparatus for producing polymeric nanofibers utilizes a meltblown spinneret die having spin holes (30) formed by grooves in plate(s) surface(s) of plate(s) (21) where polymer exits at the plate(s) edge(s). The grooves are smaller than 0.005'wide x 0.004' deep and have an L/D at least as large as 20: 1. Flow rates of polymer through the apparatus are very low, on the order of 0.01 ghm or less. The method/apparatus produces may also be viewed as including a meltblown fabric having fibers mostly less than 0.5 microns in diameter is produced.
PCT/US2007/066847 2006-04-18 2007-04-18 Method and apparatus for production of meltblown nanofibers WO2007121458A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009506734A JP5439170B2 (en) 2006-04-18 2007-04-18 Method and apparatus for the production of meltblown nanofibers
EP07760821.4A EP2019875B1 (en) 2006-04-18 2007-04-18 Method and apparatus for production of meltblown nanofibers

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US79269106P 2006-04-18 2006-04-18
US60/792,691 2006-04-18
US89493907P 2007-03-15 2007-03-15
US60/894,939 2007-03-15
US11/736,399 US10041188B2 (en) 2006-04-18 2007-04-17 Method and apparatus for production of meltblown nanofibers
US11/736,399 2007-04-17

Publications (2)

Publication Number Publication Date
WO2007121458A2 WO2007121458A2 (en) 2007-10-25
WO2007121458A3 true WO2007121458A3 (en) 2008-06-12

Family

ID=38610452

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/066847 WO2007121458A2 (en) 2006-04-18 2007-04-18 Method and apparatus for production of meltblown nanofibers

Country Status (1)

Country Link
WO (1) WO2007121458A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8524796B2 (en) 2008-08-13 2013-09-03 Dow Global Technologies Llc Active polymer compositions
US8206484B2 (en) 2008-08-13 2012-06-26 Dow Global Technologies Llc Process for producing micron and submicron fibers and nonwoven webs by melt blowing
US8365925B2 (en) 2008-08-13 2013-02-05 Dow Global Technologies Llc Filter medium
KR101265093B1 (en) * 2008-12-26 2013-05-16 한국과학기술연구원 Nano powder, nano ink and micro rod, and the fabrication method thereof
ES2430353T3 (en) 2009-01-13 2013-11-20 Inserm - Institut National De La Santé Et De La Recherche Médicale Biomimetic nanofiber band and method and device for manufacturing it
WO2011091251A2 (en) * 2010-01-22 2011-07-28 Fiber Web, Inc. Meltblown fiber spinning die

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3825380A (en) * 1972-07-07 1974-07-23 Exxon Research Engineering Co Melt-blowing die for producing nonwoven mats
US3849241A (en) * 1968-12-23 1974-11-19 Exxon Research Engineering Co Non-woven mats by melt blowing
WO2003080905A1 (en) * 2002-03-26 2003-10-02 Nano Technics Co., Ltd. A manufacturing device and the method of preparing for the nanofibers via electro-blown spinning process
US6833104B2 (en) * 1999-02-17 2004-12-21 Hills, Inc. Method and apparatus for spinning a web of mixed fibers, and products produced therefrom
US20050053782A1 (en) * 2003-09-04 2005-03-10 Ayusman Sen Process for forming polymeric micro and nanofibers

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5162074A (en) 1987-10-02 1992-11-10 Basf Corporation Method of making plural component fibers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3849241A (en) * 1968-12-23 1974-11-19 Exxon Research Engineering Co Non-woven mats by melt blowing
US3825380A (en) * 1972-07-07 1974-07-23 Exxon Research Engineering Co Melt-blowing die for producing nonwoven mats
US6833104B2 (en) * 1999-02-17 2004-12-21 Hills, Inc. Method and apparatus for spinning a web of mixed fibers, and products produced therefrom
WO2003080905A1 (en) * 2002-03-26 2003-10-02 Nano Technics Co., Ltd. A manufacturing device and the method of preparing for the nanofibers via electro-blown spinning process
US20050053782A1 (en) * 2003-09-04 2005-03-10 Ayusman Sen Process for forming polymeric micro and nanofibers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2019875A4 *

Also Published As

Publication number Publication date
WO2007121458A2 (en) 2007-10-25

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