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EP1151787A3 - Forming a solution of fluids having low miscibility and large-scale differences in viscosity - Google Patents

Forming a solution of fluids having low miscibility and large-scale differences in viscosity Download PDF

Info

Publication number
EP1151787A3
EP1151787A3 EP01117775A EP01117775A EP1151787A3 EP 1151787 A3 EP1151787 A3 EP 1151787A3 EP 01117775 A EP01117775 A EP 01117775A EP 01117775 A EP01117775 A EP 01117775A EP 1151787 A3 EP1151787 A3 EP 1151787A3
Authority
EP
European Patent Office
Prior art keywords
fluids
solution
viscosity
forming
low miscibility
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.)
Granted
Application number
EP01117775A
Other languages
German (de)
French (fr)
Other versions
EP1151787B1 (en
EP1151787A2 (en
Inventor
Robert E. Albers
Arthur William Etchells
Joseph Daniel Gutmann, Jr.
Edgar W. Slocum
Ashok H. Shah
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
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority claimed from EP97913933A external-priority patent/EP0935496B1/en
Publication of EP1151787A2 publication Critical patent/EP1151787A2/en
Publication of EP1151787A3 publication Critical patent/EP1151787A3/en
Application granted granted Critical
Publication of EP1151787B1 publication Critical patent/EP1151787B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D01D1/00—Treatment of filament-forming or like material
    • D01D1/06—Feeding liquid to the spinning head
    • D01D1/065—Addition and mixing of substances to the spinning solution or to the melt; Homogenising
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

This invention relates to mixing two substantially immiscible fluids having substantial viscosity differences into a single phase solution. The invention particular includes a mixer comprising a specially designed conveyor flights to provide shear mixing without differential conveying of the fluids or causing excessive back pressure or pressure drop on the solution.
EP01117775A 1996-11-01 1997-10-31 Forming a solution of fluids having low miscibility and large-scale differences in viscosity Expired - Lifetime EP1151787B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US2953996P 1996-11-01 1996-11-01
US29539P 1996-11-01
EP97913933A EP0935496B1 (en) 1996-11-01 1997-10-31 Forming a solution of fluids having low miscibility and large-scale differences in viscosity

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP97913933A Division EP0935496B1 (en) 1996-11-01 1997-10-31 Forming a solution of fluids having low miscibility and large-scale differences in viscosity

Publications (3)

Publication Number Publication Date
EP1151787A2 EP1151787A2 (en) 2001-11-07
EP1151787A3 true EP1151787A3 (en) 2002-01-30
EP1151787B1 EP1151787B1 (en) 2006-07-19

Family

ID=26148536

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01117775A Expired - Lifetime EP1151787B1 (en) 1996-11-01 1997-10-31 Forming a solution of fluids having low miscibility and large-scale differences in viscosity

Country Status (1)

Country Link
EP (1) EP1151787B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10245737C5 (en) 2002-10-01 2011-12-08 Clariant Produkte (Deutschland) Gmbh Process for the preparation of additive mixtures for mineral oils and mineral oil distillates
CN116791217B (en) * 2023-08-21 2023-11-21 江苏青昀新材料有限公司 Double-screw feeding system for flash spinning

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941535A (en) * 1974-10-01 1976-03-02 Street Louis F Extrusion device
EP0285670A1 (en) * 1986-10-13 1988-10-12 Asahi Kasei Kogyo Kabushiki Kaisha High-density polyethylene net-like fiber, nonwoven fabric made of the fiber and production of them
US5215764A (en) * 1991-06-10 1993-06-01 Westland Corporation Extruder mixing screw
EP0664151A1 (en) * 1994-01-21 1995-07-26 Sealex Incorporated In line dynamic mixer with folding elements and perforated plates

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941535A (en) * 1974-10-01 1976-03-02 Street Louis F Extrusion device
EP0285670A1 (en) * 1986-10-13 1988-10-12 Asahi Kasei Kogyo Kabushiki Kaisha High-density polyethylene net-like fiber, nonwoven fabric made of the fiber and production of them
US5215764A (en) * 1991-06-10 1993-06-01 Westland Corporation Extruder mixing screw
EP0664151A1 (en) * 1994-01-21 1995-07-26 Sealex Incorporated In line dynamic mixer with folding elements and perforated plates

Also Published As

Publication number Publication date
EP1151787B1 (en) 2006-07-19
EP1151787A2 (en) 2001-11-07

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