GB1061337A - Fibrillated plexifilamentary material - Google Patents

Fibrillated plexifilamentary material

Info

Publication number
GB1061337A
GB1061337A GB40476/65A GB4047665A GB1061337A GB 1061337 A GB1061337 A GB 1061337A GB 40476/65 A GB40476/65 A GB 40476/65A GB 4047665 A GB4047665 A GB 4047665A GB 1061337 A GB1061337 A GB 1061337A
Authority
GB
United Kingdom
Prior art keywords
polymer
zone
solution
pressure
solvent
Prior art date
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.)
Expired
Application number
GB40476/65A
Inventor
Ronald Dean Andersen
John Emilio Romano
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 to NL300881D priority Critical patent/NL300881A/xx
Priority to US308845A priority patent/US3227794A/en
Priority to NL300881A priority patent/NL144338C/en
Priority to DE1963P0033049 priority patent/DE1435632B2/en
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority to CH1308865A priority patent/CH450618A/en
Priority to GB40476/65A priority patent/GB1061337A/en
Priority to BE670104A priority patent/BE670104A/xx
Priority to FR32623A priority patent/FR1472989A/en
Publication of GB1061337A publication Critical patent/GB1061337A/en
Expired legal-status Critical Current

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
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/11—Flash-spinning
    • 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
    • D01D1/00—Treatment of filament-forming or like material
    • D01D1/06—Feeding liquid to the spinning head
    • D01D1/09—Control of pressure, temperature or feeding rate
    • 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
    • D01D5/04—Dry spinning methods
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/47—Processes of splitting film, webs or sheets

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Artificial Filaments (AREA)

Abstract

Tobacco smoke filters may be made from plexifilaments produced by flash-spinning a fibrilated plexilfilamentary material. A synthetic, crystallizable organic polymer and a solvent therefor are supplied under pressure into a dissolution zone, and the polymer dissolved to form a solution having a temperature of at least the critical temperature of the solvent minus 45 DEG C. and a pressure above the two-liquid-phase pressure boundary for the solution, the concentration of polymer in the solution being 2 to 20% by weight. The solution is forwarded through a transfer zone, and the solution passed into a pressure reduction zone for p lowering the pressure of the solution to below the two-liquid-phase pressure boundary for the solution, a constant pressure being maintained in the transfer zone preceding the pressure reduction zone by keeping the heat balance in the transfer zone at the same level as in the dissolution zone and by regulating the rates of supply of polymer and solvent to the dissolution zone inversely in relation to the pressure in the transfer zone and in a fixed ratio to one another. The solution is discharged through a spinneret orifice of restricted size into a gaseous zone which is at atmospheric pressure and temperature. The polymer may be supplied to the dissolution zone as a molten stream. The polymer and solvent may be supplied to this zone as a slurry. The solvent may have a boiling point at least 25 DEG C. below the melting point of the polymer and dissolve less than 1% by weight of the polymer at that boiling point. The polymer may be a crystalline polyhydrocarbon such as polyethylene and the solvent may be trichlorofluorosmethane. Specification 891,943 discloses similar plexifilamentary strands and a process for their preparation.ALSO:A process for flash-spinning a fibrilated plexifila-mentary material comprises supplying under pressure into a dissolution zone a synthetic crystallizable organic polymer and a solvent therefor, dissolving the polymer to form a solution having a temperature of at least the critical temperature of the solvent minus 45 DEG C and a pressure above the two-liquid-phase pressure boundary for the solution, the concentration of polymer in the solution being 2 to 20% by weight, forwarding the solution through a transfer zone, passing the solution into a pressure reduction zone for lowering the pressure of the solution to below the two-liquid-phase pressure boundary for the solution, maintaining a constant pressure in the transfer zone preceding the pressure reduction zone by keeping the heat balance in the transfer zone at the same level as in the dissolution zone and by regulating the rates of supply of polymer and solvent to the dissolution zone inversely in relation to the pressure in the transfer zone and in a fixed ratio to one another, and discharging the solution through a spinneret orifice of restricted size into a gaseous zone which is at atmospheric pressure and temperature. The polymer may be supplied to the dissolution zone as a molten stream. The polymer and solvent may be supplied to this zone as a slurry. The solvent may have a boiling point at least 25 DEG C below the melting point of the polymer and dissolve less than 1% by weight of the polymer at that boiling point. The polymer may be a crystalline polyhydrocarbon such as polyethylene and the solvent may be trichlorofluoroamethane. Specification 891,943 discloses similar plexifilamentary strands and a process for their preparation. The product of the present invention may be used in paper manufacture.
GB40476/65A 1962-11-23 1965-09-22 Fibrillated plexifilamentary material Expired GB1061337A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
NL300881D NL300881A (en) 1962-11-23
US308845A US3227794A (en) 1962-11-23 1963-09-13 Process and apparatus for flash spinning of fibrillated plexifilamentary material
NL300881A NL144338C (en) 1962-11-23 1963-11-22 PROCEDURE FOR CONTINUOUS SPINNING OF FIBRILATED PLEXIFILAMENTARY MATERIAL AND MATERIAL THEREOF.
DE1963P0033049 DE1435632B2 (en) 1962-11-23 1963-11-23 PROCESS FOR RELAXATION SPINNING OF FIBRILLATED, PLEXUS THREADY MATERIAL
CH1308865A CH450618A (en) 1962-11-23 1965-09-22 Method and apparatus for the continuous spinning, by flash evaporation, of a fibrillated material
GB40476/65A GB1061337A (en) 1962-11-23 1965-09-22 Fibrillated plexifilamentary material
BE670104A BE670104A (en) 1962-11-23 1965-09-24
FR32623A FR1472989A (en) 1962-11-23 1965-09-24 Method and apparatus for dissolving a polymer and spinning fibrillated bundles

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US23967462A 1962-11-23 1962-11-23
US308845A US3227794A (en) 1962-11-23 1963-09-13 Process and apparatus for flash spinning of fibrillated plexifilamentary material
CH1308865A CH450618A (en) 1962-11-23 1965-09-22 Method and apparatus for the continuous spinning, by flash evaporation, of a fibrillated material
GB40476/65A GB1061337A (en) 1962-11-23 1965-09-22 Fibrillated plexifilamentary material
BE670104A BE670104A (en) 1962-11-23 1965-09-24
FR32623A FR1472989A (en) 1962-11-23 1965-09-24 Method and apparatus for dissolving a polymer and spinning fibrillated bundles

Publications (1)

Publication Number Publication Date
GB1061337A true GB1061337A (en) 1967-03-08

Family

ID=27543063

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40476/65A Expired GB1061337A (en) 1962-11-23 1965-09-22 Fibrillated plexifilamentary material

Country Status (7)

Country Link
US (1) US3227794A (en)
BE (1) BE670104A (en)
CH (1) CH450618A (en)
DE (1) DE1435632B2 (en)
FR (1) FR1472989A (en)
GB (1) GB1061337A (en)
NL (2) NL144338C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2352503A1 (en) * 1976-05-28 1977-12-23 Hoechst Ag CIGARETTE FILTER

Families Citing this family (86)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3549470A (en) * 1967-01-03 1970-12-22 Celanese Corp Fibrillated yarn carpet backing
US3467744A (en) * 1968-10-15 1969-09-16 Du Pont Process for flash spinning polypropylene plexifilament
US3655498A (en) * 1970-09-11 1972-04-11 Du Pont Plexifilamentary structures prepared from non-crystalline synthetic organic polymers
BE787033A (en) * 1971-08-06 1973-02-01 Solvay
US4025593A (en) * 1971-08-06 1977-05-24 Solvay & Cie Fabrication of discontinuous fibrils
US3874965A (en) * 1972-05-01 1975-04-01 Celanese Corp Fibrillated yarn carpet backing
US3756441A (en) * 1972-08-14 1973-09-04 Du Pont Flash spinning process
US4054625A (en) * 1972-08-30 1977-10-18 Crown Zellerbach Corporation Process for making fibers
GB1450892A (en) * 1972-09-26 1976-09-29 Ici Ltd Production of fibrils
NL7305415A (en) * 1973-04-18 1974-10-22
IT995549B (en) * 1973-10-02 1975-11-20 Anic Spa PROCEDURE FOR THE PRODUCTION OF FIBROUS STRUCTURES
DE2363672C3 (en) * 1973-12-21 1982-08-05 Basf Ag, 6700 Ludwigshafen Process for the production of short fibers from low-pressure polyethylene and their use
US4081226A (en) * 1974-01-18 1978-03-28 Solvay & Cie. Process for the manufacture of short fibrils and devices for carrying it out
LU69196A1 (en) * 1974-01-18 1975-12-09
AU517825B2 (en) * 1977-04-12 1981-08-27 Union Carbide Corporation Gear pump
US4183881A (en) * 1977-07-20 1980-01-15 Imperial Chemical Industries Limited Flash fibrillation process
US5032338A (en) * 1985-08-19 1991-07-16 Allied-Signal Inc. Method to prepare high strength ultrahigh molecular weight polyolefin articles by dissolving particles and shaping the solution
JPS6350512A (en) * 1986-04-22 1988-03-03 Asahi Chem Ind Co Ltd Production of flush-spun net fiber
KR910005573B1 (en) * 1986-10-13 1991-07-31 아사히 가세이 고오교 가부시끼가이샤 High-density polyethylene net-like fiber nonwoven fabric made of the fiber and production of them
US5202376A (en) * 1988-08-30 1993-04-13 E. I. Du Pont De Nemours And Company Solutions for flash-spinning dry polymeric plexifilamentary film-fibril strands
US5023025A (en) * 1989-07-18 1991-06-11 E. I. Du Pont De Nemours And Company Halocarbons for flash-spinning polymeric plexifilaments
DE68909880T2 (en) * 1988-08-30 1994-05-05 Du Pont Halogenated hydrocarbons for flash spinning polymeric plexifilaments.
EP0357364B1 (en) * 1988-08-30 1993-07-28 E.I. Du Pont De Nemours And Company A process for flash-spinning dry polymeric plexifilamentary film-fibril strands
US5081177A (en) * 1988-08-30 1992-01-14 E. I. Du Pont De Nemours And Company Halocarbons for flash-spinning polymeric plexifilaments
US5043109A (en) * 1988-08-30 1991-08-27 E. I. Du Pont De Nemours And Company Process for flash-spinning dry polymeric plexifilamentary film-fibril strands
US5032326A (en) * 1988-08-31 1991-07-16 E. I. Du Pont De Nemours And Company Flash-spinning of polymeric plexifilaments
EP0474632B1 (en) * 1989-06-01 1995-05-03 E.I. Du Pont De Nemours And Company Control of flash spinning cell atmosphere temperature
US5122412A (en) * 1989-07-10 1992-06-16 E. I. Du Pont De Nemours And Company Polyethylene plexifilamentary film-fibril sheet
US5085817A (en) * 1989-07-10 1992-02-04 E. I. Du Pont De Nemours And Company Process for preparing a metallized polyethylene plexfilamentary film-fibril sheet
US5057351A (en) * 1989-07-10 1991-10-15 E. I. Du Pont De Nemours And Company Metallized polyethylene plexifilamentary film-fibril sheet
TW204377B (en) * 1989-07-12 1993-04-21 Asahi Chemical Ind
US5043108A (en) * 1989-08-22 1991-08-27 E. I. Du Pont De Nemours And Company Process for preparing polyethylene plexifilamentary film-fibril strands
CA2029550C (en) * 1989-11-22 2001-07-31 Don Mayo Coates Process for flash spinning polyolefins
CA2077192C (en) * 1990-02-26 1999-10-19 Hyunkook Shin Halocarbons for flash-spinning polyethylene plexifilaments
US5039460A (en) * 1990-02-26 1991-08-13 E. I. Du Pont De Nemours And Company Mixed halocarbon for flash-spinning polyethylene plexifilaments
US5116549A (en) * 1991-01-02 1992-05-26 E. I. Du Pont De Nemours And Company Solution flow splitting for improved sheet uniformity
US5147586A (en) 1991-02-22 1992-09-15 E. I. Du Pont De Nemours And Company Flash-spinning polymeric plexifilaments
US5286422A (en) * 1991-08-03 1994-02-15 Asahi Kasei Kogyo Kabushiki Kaisha Process for producing three-dimensional fiber using a halogen group solvent
US5279776A (en) * 1991-09-17 1994-01-18 E. I. Du Pont De Nemours And Company Method for making strong discrete fibers
US5250237A (en) * 1992-05-11 1993-10-05 E. I. Du Pont De Nemours And Company Alcohol-based spin liquids for flash-spinning polymeric plexifilaments
US5786284A (en) * 1993-04-08 1998-07-28 Unitika, Ltd. Filament having plexifilamentary structure, nonwoven fabric comprising said filament and their production
US5547624A (en) * 1994-08-09 1996-08-20 E. I. Du Pont De Nemours And Company Process of making and collecting continuous fibers in the form of a rod-shaped batt
US5529734A (en) * 1994-08-09 1996-06-25 E. I. Du Pont De Nemours And Company Process for making and collecting continuous fibers in the form of a rod-shaped batt
US5603885A (en) * 1995-07-06 1997-02-18 E. I. Du Pont De Nemours And Company Process for the preparation of nonwoven fibrous sheets
US5833900A (en) * 1995-07-28 1998-11-10 E. I. Du Pont De Nemours And Company Process for modifying porosity in sheet made from flash spinning olefin polymer
US5863639A (en) * 1995-09-13 1999-01-26 E. I. Du Pont De Nemours And Company Nonwoven sheet products made from plexifilamentary film fibril webs
US5816700A (en) * 1995-10-26 1998-10-06 E. I. Du Pont De Nemours And Company Process and apparatus for mechanically mixing polymers and lower viscosity fluids
US6096421A (en) * 1996-01-11 2000-08-01 E. I. Du Pont De Nemours And Company Plexifilamentary strand of blended polymers
KR19990077168A (en) * 1996-01-11 1999-10-25 미리암 디. 메코너헤이 Fibers Flash-Flashed from Partially Fluorinated Polymers
US5707580A (en) * 1996-05-01 1998-01-13 E. I. Du Pont De Nemours And Company Flash-spinning process
US5788993A (en) * 1996-06-27 1998-08-04 E. I. Du Pont De Nemours And Company Spinneret with slotted outlet
US6034008A (en) * 1996-08-19 2000-03-07 E. I. Du Pont De Nemours And Company Flash-spun sheet material
US5851936A (en) * 1996-08-19 1998-12-22 E. I. Du Pont De Nemours And Company Elongation for flash spun products
US6179458B1 (en) 1996-11-01 2001-01-30 E. I. Du Pont De Nemours And Company Forming a solution of fluids having low miscibility and large-scale differences in viscosity
US5971731A (en) * 1996-11-01 1999-10-26 E. I. Du Pont De Nemours And Company Nose cone for small spin head in flash spinning system
WO1998030739A1 (en) 1997-01-09 1998-07-16 E.I. Du Pont De Nemours And Company Fibers flash-spun from fully halogenated polymers
ES2165671T3 (en) * 1997-03-05 2002-03-16 Du Pont IMPROVED LAMINAR MATERIAL MANUFACTURED BY SPINNING BY SUBITA EVAPORATION.
US6117801A (en) * 1997-03-27 2000-09-12 E. I. Du Pont De Nemours And Company Properties for flash-spun products
US6458304B1 (en) 2000-03-22 2002-10-01 E. I. Du Pont De Nemours And Company Flash spinning process and solutions of polyester
US6524847B2 (en) 2000-06-23 2003-02-25 E. I. Du Pont De Nemours And Company Composting system
US7338916B2 (en) 2004-03-31 2008-03-04 E.I. Du Pont De Nemours And Company Flash spun sheet material having improved breathability
US20060135020A1 (en) * 2004-12-17 2006-06-22 Weinberg Mark G Flash spun web containing sub-micron filaments and process for forming same
US20080070021A1 (en) * 2005-03-23 2008-03-20 E. I. Du Pont De Nemours And Company Flash spun sheet material having improved breathability
US7660040B2 (en) * 2005-05-17 2010-02-09 E. I. Du Pont De Nemours And Company Diffuse reflective article
KR100701552B1 (en) * 2006-06-23 2007-03-30 한국과학기술연구원 Method for manufacturing biodegradable polyester polymer material in the form of filament and sheet using compressed gas
JP2010505145A (en) * 2006-09-29 2010-02-18 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー Diffuse reflector including nonwoven sheet
US8025124B2 (en) * 2007-10-31 2011-09-27 E. I. Du Pont De Nemours And Company Broadband passive distributed tuned vibration and acoustic absorber for modally dense structures
US20090173570A1 (en) * 2007-12-20 2009-07-09 Levit Natalia V Acoustically absorbent ceiling tile having barrier facing with diffuse reflectance
US20090173569A1 (en) * 2007-12-20 2009-07-09 E. I. Du Pont De Nemours And Company Acoustic absorber with barrier facing
US8361611B2 (en) 2009-03-20 2013-01-29 Whiteoptics Llc Diffusively light reflective paint composition, method for making paint composition, and diffusively light reflective articles
CN101845679A (en) * 2010-05-24 2010-09-29 天津工业大学 Preparation method of conducting fiber
CN103182819B (en) 2011-12-31 2015-11-25 杜邦公司 Comprise the diffuse reflector compound of nonwoven sheet
US20130183510A1 (en) 2012-01-12 2013-07-18 E I Du Pont De Nemours And Company Diffuse reflector
WO2014100527A2 (en) 2012-12-21 2014-06-26 E. I. Du Pont De Nemours And Company Thermally stable porous medium
EP3064620B1 (en) * 2013-10-29 2019-05-15 Braskem S.A. Device, system and method for extracting a solvent from at least one polymeric yarn
US10329692B2 (en) 2015-07-10 2019-06-25 E I Du Pont De Nemours And Company Flash spun plexifilamentary strands and sheets
US10337123B2 (en) 2014-06-18 2019-07-02 E I Du Pont De Nemours And Company Flash spun plexifilamentary strands and sheets
US10920028B2 (en) 2014-06-18 2021-02-16 Dupont Safety & Construction, Inc. Plexifilamentary sheets
US9809004B2 (en) 2014-07-18 2017-11-07 E I Du Pont De Nemours And Company Breathable protective apparel
US11261543B2 (en) 2015-06-11 2022-03-01 Dupont Safety & Construction, Inc. Flash spinning process
CN106574401B (en) 2015-06-18 2019-10-11 纳幕尔杜邦公司 It dodges and spins clump silk strand and sheet material
WO2016204763A1 (en) 2015-06-18 2016-12-22 E. I. Du Pont De Nemours And Company Flash spun plexifilamentary strands and sheets
JP7033129B2 (en) 2016-10-11 2022-03-09 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー A package containing a sealed contact area containing a non-woven fabric with a bonded surface with an embossed imprint pattern
KR102247574B1 (en) 2018-11-30 2021-05-04 한국생산기술연구원 Manufacturing method of melt-spinning type nonwoven web and nonwoven web products manufactured thereby
CN111705368A (en) * 2020-06-10 2020-09-25 东华大学 Method for preparing polypropylene fiber aggregate based on instantaneous pressure-release spinning method and application
CN111691060B (en) * 2020-06-10 2022-11-11 东华大学 High polymer fiber based on instantaneous pressure-release spinning method, and preparation method and application thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2352503A1 (en) * 1976-05-28 1977-12-23 Hoechst Ag CIGARETTE FILTER

Also Published As

Publication number Publication date
BE670104A (en) 1966-01-17
US3227794A (en) 1966-01-04
NL144338C (en) 1974-12-16
NL300881A (en)
DE1435632B2 (en) 1976-12-23
DE1435632A1 (en) 1969-02-13
CH450618A (en) 1968-01-31
FR1472989A (en) 1967-03-17

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