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EP0579979A3 - Process for the production of spandex polymer spinning solutions, with stabilized viscosity and low gel content. - Google Patents

Process for the production of spandex polymer spinning solutions, with stabilized viscosity and low gel content. Download PDF

Info

Publication number
EP0579979A3
EP0579979A3 EP9393110270A EP93110270A EP0579979A3 EP 0579979 A3 EP0579979 A3 EP 0579979A3 EP 9393110270 A EP9393110270 A EP 9393110270A EP 93110270 A EP93110270 A EP 93110270A EP 0579979 A3 EP0579979 A3 EP 0579979A3
Authority
EP
European Patent Office
Prior art keywords
production
gel content
polymer spinning
spinning solutions
low gel
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
EP9393110270A
Other languages
German (de)
French (fr)
Other versions
EP0579979B1 (en
EP0579979A2 (en
Inventor
Bernd Dipl-Ing Klinksiek
Rolf-Volker Dr Meyer
Beatrix Dr Frauendorf
Klaus Dr Rall
Wolfgang Dipl-Ing Baecker
Hans-Joachim Dr Wollweber
Helmut Dr Ohse
Wolfram Dr Wagner
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of EP0579979A2 publication Critical patent/EP0579979A2/en
Publication of EP0579979A3 publication Critical patent/EP0579979A3/en
Application granted granted Critical
Publication of EP0579979B1 publication Critical patent/EP0579979B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3124—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow
    • B01F25/31243—Eductor or eductor-type venturi, i.e. the main flow being injected through the venturi with high speed in the form of a jet
    • 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
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/70—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3121—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3124—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow
    • B01F25/31242—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow the main flow being injected in the central area of the venturi, creating an aspiration in the circumferential part of the conduit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/45—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/45—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
    • B01F25/452—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces
    • B01F25/4521—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces the components being pressed through orifices in elements, e.g. flat plates or cylinders, which obstruct the whole diameter of the tube
    • B01F25/45211—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces the components being pressed through orifices in elements, e.g. flat plates or cylinders, which obstruct the whole diameter of the tube the elements being cylinders or cones which obstruct the whole diameter of the tube, the flow changing from axial in radial and again in axial

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Artificial Filaments (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
EP93110270A 1992-07-10 1993-06-28 Process for the production of spandex polymer spinning solutions, with stabilized viscosity and low gel content Expired - Lifetime EP0579979B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4222772 1992-07-10
DE4222772A DE4222772A1 (en) 1992-07-10 1992-07-10 Process for the preparation of viscosity-stable, gel-poor highly concentrated elastane spinning solutions

Publications (3)

Publication Number Publication Date
EP0579979A2 EP0579979A2 (en) 1994-01-26
EP0579979A3 true EP0579979A3 (en) 1994-11-30
EP0579979B1 EP0579979B1 (en) 1999-03-24

Family

ID=6462964

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93110270A Expired - Lifetime EP0579979B1 (en) 1992-07-10 1993-06-28 Process for the production of spandex polymer spinning solutions, with stabilized viscosity and low gel content

Country Status (4)

Country Link
US (1) US5302660A (en)
EP (1) EP0579979B1 (en)
DE (2) DE4222772A1 (en)
ES (1) ES2128368T3 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4330725A1 (en) * 1993-09-10 1995-03-16 Bayer Ag Process for the production of elastane fibers by spinning a combination of PDMS and ethoxylated PDMS
DE4446339C1 (en) * 1994-12-23 1996-05-02 Bayer Faser Gmbh Reducing viscosity of polyurethane spinning solns.
DE19504316C1 (en) * 1995-02-10 1996-08-01 Bayer Faser Gmbh Multi-filament elastane threads reliably wet-spun at higher speeds
US6171537B1 (en) * 1995-10-16 2001-01-09 E.I. Du Pont De Nemours And Company Preparation of poly (urethaneurea) fibers
US7293228B1 (en) 1997-01-31 2007-11-06 Timebase Pty Limited Maltweb multi-axis viewing interface and higher level scoping
AUPO489297A0 (en) * 1997-01-31 1997-02-27 Aunty Abha's Electronic Publishing Pty Ltd A system for electronic publishing
DE69801486T2 (en) * 1997-03-05 2002-05-23 Du Pont-Toray Co. Ltd., Tokio/Tokyo STABLE POLYURETHANE SOLUTIONS
US6225435B1 (en) 1997-03-05 2001-05-01 Dupont Toray Co. Ltd. Stable polyurethaneurea solutions
DE19805104A1 (en) 1998-02-09 1999-08-12 Bayer Ag Coating agent for fibers
DE19829164A1 (en) 1998-06-30 2000-03-30 Bayer Faser Gmbh Elastane threads and process for their manufacture
DE19907830A1 (en) 1999-02-24 2000-08-31 Bayer Ag Method and device for producing elastane threads from recycling material
US6433218B1 (en) * 1999-11-30 2002-08-13 Bayer Corporation Stable isocyanate formulations
US20030041305A1 (en) * 2001-07-18 2003-02-27 Christoph Schnelle Resilient data links
US7363310B2 (en) * 2001-09-04 2008-04-22 Timebase Pty Limited Mapping of data from XML to SQL
US7281206B2 (en) * 2001-11-16 2007-10-09 Timebase Pty Limited Maintenance of a markup language document in a database
CA2495835C (en) * 2002-08-20 2013-01-08 Roof Matrix, Inc. Non-toxic hydrophobic elastomeric polymer chemistry system for wood preservation
FR3031099B1 (en) * 2014-12-24 2019-08-30 Veolia Water Solutions & Technologies Support OPTIMIZED NOZZLE FOR INJECTING PRESSURIZED WATER CONTAINING DISSOLVED GAS.
KR101956332B1 (en) * 2017-07-27 2019-03-08 주식회사 나노텍세라믹스 An additive slurry for the production of polyurethane-urea elastic fibers
IT202000016327A1 (en) * 2020-07-06 2022-01-06 Omitaly Srl MICRO AND NANO BUBBLES GENERATOR DEVICE

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
UST864005I4 (en) * 1968-11-20 1969-07-15 Method and apparatus for continuously producing spinnino dopes of spandex polymers
EP0399266A2 (en) * 1989-05-20 1990-11-28 Bayer Ag Manufacture of spherical dispersions through crystallistion of emulsions

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4526907A (en) * 1983-05-07 1985-07-02 Basf Aktiengesellschaft Process and device for the preparation of a reaction mixture of at least two components for the production of foams

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
UST864005I4 (en) * 1968-11-20 1969-07-15 Method and apparatus for continuously producing spinnino dopes of spandex polymers
EP0399266A2 (en) * 1989-05-20 1990-11-28 Bayer Ag Manufacture of spherical dispersions through crystallistion of emulsions

Also Published As

Publication number Publication date
DE59309471D1 (en) 1999-04-29
ES2128368T3 (en) 1999-05-16
US5302660A (en) 1994-04-12
EP0579979B1 (en) 1999-03-24
DE4222772A1 (en) 1994-01-13
EP0579979A2 (en) 1994-01-26

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